A.Because it sensed something unusual would happen. |
B.Because its daughter Kibibi was injured. |
C.Because it heard an orangutan let out a loud call. |
D.Because an earthquake had happened. |
A.many animals’ hearing is sharp |
B.earthquakes produce two types of waves |
C.primates usually gather together before a quake |
D.humans can also develop the ability to sense a quake |
A.vibration | B.shelter | C.quake | D.range |
A.A giant panda. | B.A flamingo. | C.A lemur. | D.A lizard. |
A.How animals survive a quake. | B.How animals differ from humans. |
C.How animals behave before a quake. | D.How animals protect their young in a quake. |
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A.show that asteroids fall from space frequently |
B.a(chǎn)lert people about the possible danger of objects falling from space |
C.inform readers about the constant threats the Earth faces |
D.suggest that there are still many mysteries about the universe |
A.unprotected | B.lonely | C.stupid | D.self-important |
A.It passed by the Earth at a close distance. |
B.It was spotted by NASA’s telescope system a year ago. |
C.It is about the same size as the asteroid that passed by the Earth. |
D.It fell to the Earth and caused great damage to the local community. |
A.Learning about asteroids and meteors. |
B.The threats of objects from space and possible solutions. |
C.NASA’s latest technology to discover visitors to the Earth from space. |
D.How to measure the damage of collisions from asteroids and meteors. |
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A.In 1972. | B.In 1950. | C.In 1968. | D.In 2020. |
A.to protect Earth | B.to explore deep space |
C.to finish Mars mission | D.to show how powerful the USA is |
A.hydrogen | B.food | C.oxygen | D.water |
A.the USA’s new plan for space exploration |
B.how to build a base on the moon |
C.why to ensure the survival of the species |
D.where to get new natural resources |
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A.introduce people to computer language |
B.show computer language is the same as English |
C.help people some scientific language |
D.give people some scientific language |
A.To give an example of the very first computer. |
B.To show that computers are older than mankind. |
C.To tell the difference between the past and the present. |
D.To give another way of explaining computers. |
A.the shadow is the input and the position is the output |
B.the sunlight is the input and the calendar is the output |
C.the position is the input and the sunlight is the output |
D.the calendar is the input and the shadow is the output |
A.a(chǎn) computer textbook | B.a(chǎn) company's advertisement |
C.a(chǎn) teach-yourself computer book | D.a(chǎn) children's guide to computers |
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A.knowingfactsbeyondthestatement |
B.lookingformoreevidencesforthestatement |
C.findingoutadifferentmeaningfromthestatement |
D.a(chǎn)ddingsomefactstothestatement |
A.Readers’guessing. | B.Thebasicelementsofthestory. |
C.Thesettingofthestory. | D.Theinterrelationshipsbetweenpeopleinthestory. |
A.Inferringcanreallyhelpthereaderdevelopimaginationandenrichhimself. |
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C.Thereadershouldlookforanexperiencedescribedinthestoryhereads. |
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A.Inferringisanartofwriting. | B.Inferringisaneedinfictionwriting |
C.Inferringisthebasicskillinreadingfiction. | D.Inferringiscommoninreading. |
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A.Because he is a prodigy. |
B.Because he is of Bengali descent. |
C.Because he used an extremely rare organic waste to produce biogas. |
D.Because his research proved that banana peels can produce more biogas. |
A.gourmet | B.science | C.computer | D.fashion |
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A.the size of the lake |
B.the direction of the wind |
C.the temperature of the lake |
D.the strength of the wind |
A.clouds are easy to produce with the help of the perpendicular wind |
B.cold air always falls down and picks up moisture to form clouds |
C.the temperature of the lake water is the same as the overrunning air’s above it |
D.the longer journey of the cold atmosphere can make a grater amount of snow |
A.the influences of the lake-effect snow for local people |
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A.They are in danger of dying out. |
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A.is born at sea |
B.is fed on fat by the mother |
C.stays with its parents all life |
D.is looked after by its mother for 6 weeks |
A.sharks are a threat to Hawaiian monk seals |
B.male monk seals fight each other for females in the breeding season |
C.when disturbed by people, the mother seal will protect the baby seal |
D.Hawaiian monk seals give birth usually in July |
A.Ways to protect Hawaiian monk seals。 |
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C.The reasons for the decline(減少) of Hawaiian monk seals. |
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