________ is all known to all, water is ________ hydrogen and oxygen．

1. A.
   As; making
2. B.
   It; made up of
3. C.
   As; composed of
4. D.
   Which; consisted of

Though “nanometer” is now a fashionable term all over the world,few people know exactly what it is.It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.

Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles or crystallites of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?

Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.

Ji(director Institute of Nanomedicine):

A water molecule is composed of 2 hydrogen atoms and 1 oxygen atom.It can be alterchanged only by special manipulation of the atoms.The material constituting the cup can have a nanometer particles size of the nano level.But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water.When people drink it,it will produce no special effect on human body.

Prof.Ji told the reporter,so far,the investigation of nano materials is still confined in the laboratory.No commercial micro products can be produced yet.With the present level of science and technology,the time of everyday goods age of daily use articles made of nanometer materials is still years away.

The commodities labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material,which makes them more abrasion resistant,much easier to be cleaned,or oil repelling or moth proof.

Prof.Ji explained that nano cup is a real cup.It can also be included in the list of nano products in a certain sense.But the nano cup has not changed its property and function as a cup.It is not a magical medicine for curing and health care.

Which of the following shows the right relationship?

A.nanometer<millimeter<micrometer<meter

B.nanometer<micrometer<millimeter<meter

C.micrometer<millimeter<nanometer<meter

D.millimeter<micrometer<nanometer<meter

The underlined part in the last second paragraph but one is about_________.

A.the strong points of nano cups                        B.the shortcomings of nano cups

C.the uses of nano cups                                     D.the wonders of nano cups

Which of the following does not show that nano cups are different from ordinary cups?

A.Nano cups can’t make people healthier.

B.Nano cups are made of a different material.

C.Nano cups are much easier to be cleaned.

D.Nano cups are hard to produce.

According to the text,nano cups in the market are_________.

A.only traditional products

B.ordinary cups covered with a little nanometer material on the surface

C.cups made of a nano material

D.cups made of a mixed material

Though “nanometer” is now a fashionable term all over the world,few people know exactly what it is.It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.
Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles or crystallites of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?
Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.
Ji(director Institute of Nanomedicine):
A water molecule is composed of 2 hydrogen atoms and 1 oxygen atom.It can be alterchanged only by special manipulation of the atoms.The material constituting the cup can have a nanometer particles size of the nano level.But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water.When people drink it,it will produce no special effect on human body.
Prof.Ji told the reporter,so far,the investigation of nano materials is still confined in the laboratory.No commercial micro products can be produced yet.With the present level of science and technology,the time of everyday goods age of daily use articles made of nanometer materials is still years away.
The commodities labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material,which makes them more abrasion resistant,much easier to be cleaned,or oil repelling or moth proof.
Prof.Ji explained that nano cup is a real cup.It can also be included in the list of nano products in a certain sense.But the nano cup has not changed its property and function as a cup.It is not a magical medicine for curing and health care.

1. 1.

   Which of the following shows the right relationship?

   1. A.
      nanometer<millimeter<micrometer<meter
   2. B.
      nanometer<micrometer<millimeter<meter
   3. C.
      micrometer<millimeter<nanometer<meter
   4. D.
      millimeter<micrometer<nanometer<meter
2. 2.

   The underlined part in the last second paragraph but one is about_________.

   1. A.
      the strong points of nano cups
   2. B.
      the shortcomings of nano cups
   3. C.
      the uses of nano cups
   4. D.
      the wonders of nano cups
3. 3.

   Which of the following does not show that nano cups are different from ordinary cups?

   1. A.
      Nano cups can’t make people healthier.
   2. B.
      Nano cups are made of a different material.
   3. C.
      Nano cups are much easier to be cleaned.
   4. D.
      Nano cups are hard to produce.
4. 4.

   According to the text,nano cups in the market are_________.

   1. A.
      only traditional products
   2. B.
      ordinary cups covered with a little nanometer material on the surface
   3. C.
      cups made of a nano material
   4. D.
      cups made of a mixed material

Though “nanometer”（納米） is now a fashionable term all over the world, few people know
exactly what it is. It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.
Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles（粒子）or crystallites（晶體） of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?
Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.
A water molecule（分子） is composed of 2 hydrogen atoms and 1 oxygen atom.It can be changed only by special manipulation of the atoms. The material constituting the cup can have ananometer particles . But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water. When people drink it,it will produce no special effect on human body.
Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away.
The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant（耐磨）, much easier to be cleaned, or oil resisting or moth proof（防蛀）.
Professor Ji explained that nano cup is a real up. It can also be included in the list of nano products in a certain sense. But the nano up has not changed its property and function as a cup. It is not a magical medicine for curing and health care.
72．Which of the following shows the right relationship?
A．nanometer<millimeter<micrometer<meter
B．micrometer<millimeter<nanometer<meter
C．nanometer<micrometer<millimeter<meter
D．millimeter<micrometer<nanometer<meter
73．It can be inferred from the passage that       .
A．nano materials have been put into use in daily goods
B．real nano products haven’t become available for people
C．the nano cup is very effective in curing and health care
D．real nano products are being produced by some companies
74．The underlined word “properties” in the fourth paragraph probably means        .
A．possessions      B．qualities    C．reactions   D．symbols
75．What would be the best title for the passage?
A．High-tech Products  B．Nano Cups
C．Nano Materials        D．High-teach Research

Though “nanometer”（納米） is now a fashionable term all over the world, few people know

exactly what it is. It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.

Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles（粒子）or crystallites（晶體） of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?

Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.

A water molecule（分子） is composed of 2 hydrogen atoms and 1 oxygen atom.It can be changed only by special manipulation of the atoms. The material constituting the cup can have ananometer particles . But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water. When people drink it,it will produce no special effect on human body.

Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away.

The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant（耐磨）, much easier to be cleaned, or oil resisting or moth proof（防蛀）.

Professor Ji explained that nano cup is a real up. It can also be included in the list of nano products in a certain sense. But the nano up has not changed its property and function as a cup. It is not a magical medicine for curing and health care.

72．Which of the following shows the right relationship?

A．nanometer<millimeter<micrometer<meter

B．micrometer<millimeter<nanometer<meter

C．nanometer<micrometer<millimeter<meter

D．millimeter<micrometer<nanometer<meter

73．It can be inferred from the passage that       .

A．nano materials have been put into use in daily goods

B．real nano products haven’t become available for people

C．the nano cup is very effective in curing and health care

D．real nano products are being produced by some companies

74．The underlined word “properties” in the fourth paragraph probably means        .

A．possessions      B．qualities    C．reactions   D．symbols

75．What would be the best title for the passage?

A．High-tech Products  B．Nano Cups

C．Nano Materials        D．High-teach Research

 

    Though “nanometer”（納米） is now a fashionable term all over the world, few people know

exactly what it is. It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.

Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles（粒子）or crystallites（晶體） of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?

Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.

A water molecule（分子） is composed of 2 hydrogen atoms and 1 oxygen atom.It can be changed only by special manipulation of the atoms. The material constituting the cup can have ananometer particles . But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water. When people drink it,it will produce no special effect on human body.

Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away.

The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant（耐磨）, much easier to be cleaned, or oil resisting or moth proof（防蛀）.

Professor Ji explained that nano cup is a real up. It can also be included in the list of nano products in a certain sense. But the nano up has not changed its property and function as a cup. It is not a magical medicine for curing and health care.

72．Which of the following shows the right relationship?

       A．nanometer<millimeter<micrometer<meter

       B．micrometer<millimeter<nanometer<meter

       C．nanometer<micrometer<millimeter<meter

       D．millimeter<micrometer<nanometer<meter

73．It can be inferred from the passage that       .

       A．nano materials have been put into use in daily goods

       B．real nano products haven’t become available for people

       C．the nano cup is very effective in curing and health care

       D．real nano products are being produced by some companies

74．The underlined word “properties” in the fourth paragraph probably means        .

       A．possessions      B．qualities    C．reactions   D．symbols

75．What would be the best title for the passage?

       A．High-tech Products  B．Nano Cups

       C．Nano Materials        D．High-teach Research

Though “nanometer”（納米） is now a fashionable term all over the world, few people know
exactly what it is. It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products bearing the name “nano” have entered the market,bringing more mysterious feeling to surprised consumers.
Nanometer is a very small length unit of measure,and is very small.One millimeter is 1000 micrometers,and one micrometer is 1000 nanometers.That is,one nanometer is one billionth of a meter.Nano materials are solid materials composed of particles（粒子）or crystallites（晶體） of less than 100 nanometer in size.Then,is a cup made of nano material really any different from an ordinary cup in function as far as how it works?
Are nano cups really so wonderful?A reporter went to the Institute of Nanomedicine,which is the first such institute of such a sort in the world and the only one in China,specializing in researching the investigation  of the application of nano technology into medicine.
A water molecule（分子） is composed of 2 hydrogen atoms and 1 oxygen atom.It can be changed only by special manipulation of the atoms. The material constituting the cup can have ananometer particles . But it cannot change the chemical and physical properties of the water contained in it.The water in the cup is still water. When people drink it,it will produce no special effect on human body.
Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away.
The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant（耐磨）, much easier to be cleaned, or oil resisting or moth proof（防蛀）.
Professor Ji explained that nano cup is a real up. It can also be included in the list of nano products in a certain sense. But the nano up has not changed its property and function as a cup. It is not a magical medicine for curing and health care.

1. 1.

   Which of the following shows the right relationship?
   

   1. A.
      nanometer<millimeter<micrometer<meter
   2. B.
      micrometer<millimeter<nanometer<meter
   3. C.
      nanometer<micrometer<millimeter<meter
   4. D.
      millimeter<micrometer<nanometer<meter
2. 2.

   It can be inferred from the passage that       .
   

   1. A.
      nano materials have been put into use in daily goods
   2. B.
      real nano products haven’t become available for people
   3. C.
      the nano cup is very effective in curing and health care
   4. D.
      real nano products are being produced by some companies
3. 3.

   The underlined word “properties” in the fourth paragraph probably means        .
   

   1. A.
      possessions     
   2. B.
      qualities   
   3. C.
      reactions  
   4. D.
      symbols
4. 4.

   What would be the best title for the passage?
   

   1. A.
      High-tech Products 
   2. B.
      Nano Cups
   3. C.
      Nano Materials       
   4. D.
      High-teach Research

Though “nanometer”（納米） is now a fashionable term all over the world, few people know

exactly what it is. It has become a new favorite of manufacturers and sellers in recent years. Many “high-tech” products bearing the name “nano” have entered the market, bringing more mysterious feeling to surprised consumers.

Nanometer is a very small length unit of measure, and is very small. One millimeter is 1000 micrometers, and one micrometer is 1000 nanometers. That is, one nanometer is one billionth of a meter. Nano materials are solid materials composed of particles（粒子）or crystallites（晶體） of less than 100 nanometer in size. Then, is a cup made of nano material really any different from an ordinary cup in function as far as how it works?

Are nano cups really so wonderful? A reporter went to the Institute of Nanomedicine, which is the first such institute of such a sort in the world and the only one in China, specializing in researching the investigation  of the application of nano technology into medicine.

A water molecule（分子） is composed of 2 hydrogen atoms and 1 oxygen atom. It can be changed only by special manipulation of the atoms. The material constituting the cup can have ananometer particles. But it cannot change the chemical and physical properties of the water contained in it. The water in the cup is still water. When people drink it, it will produce no special effect on human body.

Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory. No commercial micro products can be produced yet. With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away.

The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant（耐磨）, much easier to be cleaned, or oil resisting or moth proof（防蛀）.

Professor Ji explained that nano cup is a real up. It can also be included in the list of nano products in a certain sense. But the nano up has not changed its property and function as a cup. It is not a magical medicine for curing and health care.

1．Which of the following shows the right relationship?

       A．nanometer<millimeter<micrometer<meter

       B．micrometer<millimeter<nanometer<meter

       C．nanometer<micrometer<millimeter<meter

       D．millimeter<micrometer<nanometer<meter

2．It can be inferred from the passage that       .

       A．nano materials have been put into use in daily goods

       B．real nano products haven’t become available for people

       C．the nano cup is very effective in curing and health care

       D．real nano products are being produced by some companies

3．The underlined word “properties” in the fourth paragraph probably means        .

       A．possessions         B．qualities               C．reactions             D．symbols

4．What would be the best title for the passage?

       A．High-tech Products                              B．Nano Cups

       C．Nano Materials                                    D．High-teach Research

閱讀理解 　　Though “nanometer”(納米)is now a fashionable term all over the world, few people know exactly what it is．It has become a new favorite of manufacturers and sellers in recent years．Many “high-tech” products bearing the name “nano” have entered the market, bringing more mysterious feeling to surprised consumers． 　　Nanometer is a very small length unit of measure, and is very small．One millimeter is 1000 micrometers, and one micrometer is 1000 nanometers．That is, one nanometer is one billionth of a meter．Nano materials are solid materials composed of particles(粒子)or crystallites(晶體)of less than 100 nanometer in size．Then, is a cup made of nano material really any different from an ordinary cup in function as far as how it works? 　　Are nano cups really so wonderful? A reporter went to the Institute of Nanomedicine, which is the first such institute of such a sort in the world and the only one in China, specializing in researching the investigation of the application of nano technology into medicine． 　　A water molecule(分子)is composed of 2 hydrogen atoms and 1 oxygen atom．It can be changed only by special working skillfully of the atoms．The material making up the cup can have nanometer particles．But it cannot change the chemical and physical properties of the water contained in it．The water in the cup is still water．When people drink it, it will produce no special effect on human body． 　　Professor Ji who worked in the Instiute of Nanomedicine told the reporter, so far, the investigation of nano materials is still limited in the laboratory．No commercial micro products can be produced yet．With the present level of science and technology, the time of everyday goods made of nanometer materials is still years away． 　　The products labeled with nano marks in the market now are only traditional products coated with a thin layer of nanometer material, which makes them more abrasion resistant(耐磨), much easier to be cleaned, or oil resisting or moth proof(防蛀)． 　　Professor Ji explained that nano cup is a real cup．It can also be included in the list of nano products in a certain sense．But the nano cup has not changed its property and function as a cup．It is not a magical medicine for curing and health care． (1) Which of the following shows the right relationship? [　　] A． nanometer＜micrometer＜millimeter＜meter B． micrometer＜millimeter＜nanometer＜meter C． nanometer＜millimeter＜micrometer＜meter D． millimeter＜micrometer＜nanometer＜meter (2) It can be inferred from the passage that ________． [　　] A． real nano products are being produced by some companies B． nano materials have been put into use in daily goods C． the nano cup is very effective in curing and health care D． real nano products haven’t become available for people (3) The underlined word “properties” in the fourth paragraph probably means ________． [　　] A． possessions B． reactions C． qualities D． symbols (4) What would be the best title for the passage? [　　] A． High-tech Products B． Nano Materials C． High-teach Research D． Nano Cups

6．Recently，researchers has announced a breakthrough in the exploration of new energy-development of the first practical artificial leaf，an advanced solar cell that imitates the process，called photosynthesis（光合作用），that green plants use to make sunlight and water into energy．
"A practical artificial leaf has been a dream of scientists for decades，"said Daniel Nocera，who led the research team．"We believe we have made it．The artificial leaf shows particular promise as an inexpensive source of electricity for homes of the poor in developing countries．One can imagine villages in India and Africa soon purchasing an affordable basic power system based on this technology．"
The leaf is like the shape of a poker card but thinner．Placed in water in a bright sunlight，it could produce enough electricity to supply a house in a developing country with electricity for a day by splitting water into hydrogen and oxygen，which are stored in a fuel cell to produce electricity．
The"artificial leaf"is not a new concept．The first artificial leaf was developed more than a decade ago by John Turner．However，it was impractical for wider use，as it was composed of rare，expensive metals and was highly unstable with a lifespan of barely one day．
Nocera's new leaf overcomes these problems．It is made of inexpensive materials that are widely available，works under simple conditions and is highly stable．Laboratory studies showed that it could operate continuously for at least 45hours without a drop in activity．
The key to this breakthrough is Nocera's recent discovery of several new powerful，inexpensive catalysts，which are able to accelerate the chemical reaction under simple conditions．Right now，Nocera's leaf is about 10times more efficient at carrying out photosynthesis than a natural leaf．Yet he is optimistic that he can boost the efficiency of the device much higher in the future．

24．Daniel Nocera describes his artificial leaf as promising inC．
A．making an artificial plant that can feed itself．
B．finding a new kind of catalyst to produce electricity．
C．providing electricity for the poor family at a low cost
D．changing the sunlight and water into electricity directly
25．According to the passage，The underlined word"accelerate"in the last paragraph probably meansB．
A．reduce the loss of energy               
B．speed up the process
C．work as a media to store collected energy
D．control the operation of chemical reactions
26．We can learn from the passageB．
A．There was nobody who had an idea of the artificial leaf before．
B．Nocera's artificial leaf has advantages over Turner's in some ways．
C．The first artificial leaf was once widely put into use in many countries．
D．The new artificial leaf works well but can just keep operating only one day．
27．The passage is most probably fromA．
A．a(chǎn) science news report               B．a(chǎn) science fiction story
C．a(chǎn) fairy tale book                   D．a(chǎn)n advertisement for solar products．