A.Grey hair. | B.Material of the brain. |
C.Intelligence. | D.Difficult situations. |
A.change one’s brain completely | B.improve one’s maths skills |
C.make one smarter than others | D.increase the ability to learn |
A.the researchers from UCL did another study in Italy |
B.a(chǎn) similar study was done on native Italian speakers who learn English as a second language |
C.the research done on the Italians showed a totally different result |
D.it will be easier for one to travel around the world by learning a second language |
A.Learning a second language can help improve your brain power. |
B.You should learn a second language that is not your native language. |
C.If you want to learn a second language, you should do it at a certain age. |
D.The research done by the researchers from UCL is very successful. |
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A.Recover. | B.Fight. | C.Hunt. | D.Live. |
A.catches smaller fish in the water | B.digests the smaller fish in its body |
C.can jump so high to escape its enemies | D.uses acid to break down the protein |
A.Trypsin. | B.Acid | C.The stomach. | D.Protein in its body. |
A.the longtom can make acid easily |
B.the longtom often waste energy |
C.the longtom’s high-protein food helps its unique way of consuming food. |
D.meat –eating fish have higher levels of trypsin in their bodies than plant-eating fish |
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A.Be responsible for Our Own Choices. |
B.Overcome the Challenges in Our Life. |
C.Acknowledge the Truth Rather than Deny It. |
D.More than a Comfortable Fantasy. |
A.To show the right way of dealing with weight problems. |
B.To describe a familiar scenario in life. |
C.To give support to the author’s viewpoint. |
D.To compare the consequences of different choices. |
A.Fast food chains contribute little to people’s overweight problems actually. |
B.Fast food outlets are responsible for many people to become overweight. |
C.Many people tend to blame others for their own problems. |
D.The author himself is a supporter of fast food chains. |
A.Acknowledge the truth of his life and let it be. |
B.Think about what’s wrong with himself and then put it right. |
C.Accept that this is where we are and wait for things to improve. |
D.Do whatever he likes regardless of what others think and say. |
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A.dead cell walls | B.water entering dead cells |
C.the growth of cells | D.the death of cells |
A.evolutionary cycles | B.heights and depths |
C.time | D.kinds |
A.has no roots | B.is a pineapple |
C.can grow anywhere | D.takes up water through its leaves |
A.Absorption of water by plants | B.Rootless plants in America |
C.Plants in the desert | D.Higher plants |
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A.Professor Bolin’s predictions were taken seriously in the first place |
B.Only a small portion of the atmosphere consists of carbon dioxide |
C.No changes in climate will become noticeable for 50 years or more |
D.The rise in temperature will probably be 2 degrees in every part of the world. |
A.Carbon dioxide is produced when we breathe |
B.Carbon dioxide is produced when we burn things |
C.More forests are destroyed and more fossil fuels are burned |
D.The global temperature keeps rising |
A.the problem of the rising global temperature |
B.the problem of increasing population worldwide |
C.the problem of decreasing population worldwide |
D.the problem of air pollution |
A.play | B.move | C.manage | D.function |
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A.is always busy with his studies | B.doesn’t want to be disturbed |
C.keeps himself away from his parents | D.begins to dislike his parents |
A. Teenagers talk a lot with their friends |
B. Teenagers do not want to understand their parents. |
C. Teenagers do not talk much with their parents |
D. Teenagers talk little about their own lives |
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A.$500. | B.$1000. | C.$1200. | D.$1300. |
A.the ban has been put into effect in most states in the U. S. |
B.many of the developed countries forbid drivers using hand-held cell phones |
C.over fifty localities or states ban drivers from using hand-held cell phones |
D.more people in the U. S. are against the ban than for it |
A.does not agree with this ban |
B.doesn’t believe using hand-held cell phones while driving will cause any danger |
C.doesn’t understand why hand-held cell phones alone should be banned among many others |
D.believes changing pants while driving will cause greater danger |
A.it is not fair to have this ban passed |
B.the ban will never be passed in the whole country |
C.more activities of the same kind should also be banned |
D.the ban will meet with more criticism |
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A.it was too fat and strong. |
B.it loved crawling around. |
C.it got out of the cocoon easily. |
D.it didn’t get through the cocoon . |
A.popular science | B.humorous stories. |
C.successful people | D.philosophy events . |
A.Life without any obstacles and difficulties is perfect. |
B.Obstacles and difficulties contribute to success. |
C.Never help a butterfly to get out of the cocoon. |
D.A butterfly can never fly without going through the cocoon. |
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A.comes from a complete new idea |
B.is usually based on an old product or idea |
C.will change its creator’s life completely |
D.is created by scientists in different fields |
A.the difficulty in making a new invention |
B.the common steps of creating new things |
C.having a good idea is the key to creation |
D.designing a tool is the first step in inventing |
A.children can also invent something |
B.it is easy even for children to make inventions |
C.kids have more advantages in inventing things |
D.to be an inventor is the best way to change one’s life |
A.protect his ears while ice-skating |
B.earn money to support his poor family |
C.realize his dream of becoming an inventor |
D.make himself look fashionable while ice-skating |
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