Study hard, _____ you can get good grades.

A. or

B. but

C. while

D. and

D 【解析】 句意“努力學(xué)習(xí)，你就能取得好成績”。本題考查連詞辨析。A.否則；B.但是，表示轉(zhuǎn)折；C.當(dāng)……時候，引導(dǎo)時間狀語從句；D.和，表示順承。根據(jù)句意可知，表示順承，故選D。
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科目：初中英語 來源：人教版英語九年級全冊練習(xí)題：Unit 5 What are the shirts made of9 Test for Unit 5 題型：閱讀單選

When we think of paper，we think of newspapers and books.But there are many other uses.Only half of the world's paper is used for books and newspapers.

Paper is very good for keeping you warm.You have perhaps seen homeless men asleep on a large number of newspapers.In Finland，it is sometimes －40℃ in winter.The farmers wear paper boots(靴子) in the snow.Nothing could be warmer.

Each year，more and more things are made of paper.We have had paper cups and plates for a long time.But now we hear that chairs，tables，and even beds can be made of paper.With paper boots and shoes，you can wear paper hats，paper dresses，and paper raincoats.When you have used them once，you throw them away and buy new ones.

The latest use of paper seems to be paper houses.These are not small houses for children to play in，but real，big houses for people to live in.You can buy a house with three rooms for about 500 dollars.You can put it up by yourself in a few hours，and you can use it for about five years.

1.Only half of the world's paper is used to ________.

A. build houses

B. help the homeless people

C. make chairs，tables and beds

D. print(印刷) newspapers and books

2.The farmers in Finland wear paper boots in winter to ________.

A. feel much better B. go for a walk

C. keep their feet warm D. save a lot of money

3.Long before we began to use paper to make chairs，tables and beds，________.

A. we could buy paper boots and shoes in paper shops

B. we had already had paper cups and plates

C. we could wear paper hats and paper dresses

D. we had no paper cups or paper plates

4.After you use a paper raincoat，you may ________.

A. use it for a long time B. sell it to others

C. lend it to others D. throw it away

5.The latest use of paper seems to be paper houses.These houses are ________.

A. not expensive and easy to build up

B. made for children to play in or for homeless men to live in

C. made only for the rich people

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1.D 2.C 3.B 4.D 5.A 【解析】 這篇短文主要講述了紙的用途。 1.根據(jù)文中Only half of the world's paper is used for books and newspapers.可知，世界上一半的紙用來書籍和報紙。根據(jù)題意，故選D。 2.根據(jù)文中In Finland，it is sometimes －40℃ ...

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(2018·山東臨沂)What was discovered by accident? The answer is penicillin (青霉素). It kills germs. By killing germs, it saves lives. Suppose you are sick. You go to a doctor. She examines you. She says you have a “staph” infection (葡萄球菌感染). She gives you some medicine. You take it. The medicine knocks out the staph. Soon you are well. Before penicillin, this would not happen. Staph was almost sure death.

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The laboratory dishes had covers on them. They kept things from falling into dishes. Molds (霉菌) were a big worry. They are always in the air. You can’t see them. They’re too small. There are thousands of different molds. Molds can make an experiment (實驗) fail. That’s why dishes are covered.

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This is how penicillin was found. But here’s the real miracle (奇跡). There are thousands of kinds of molds. But only one kind can kill staph. The mold must have fallen into the dish a few days before. The cover was probably off only a few seconds (秒). In those few seconds the right mold fell into the right dish. Another man might have thrown the dish away. But Fleming was very careful and smart. He understood what the mold did. How lucky the humans were!

根據(jù)短文內(nèi)容，選擇最佳答案

1.During the experiments to find a medicine for staph infections, ________.

A. the dishes were not covered

B. staph and mold were put together

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D. staph was grown in small dishes

2.The word “ dreaded” means “_______”.

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C. health D. endangered

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B. the careful person does not have accidents

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你的看法

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你的解決方式

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2.不能出現(xiàn)真實的校名、人名和其它真實信息。

3.詞數(shù)80詞右。前兩句已經(jīng)給出,不計入詞數(shù)。

My name is Susan. There are too many rules in my family. I have to clean the room every day. I am not allowed to play computer games in my free time. I can't go out on school nights. I must go to bed ...

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