For years scientists have been arguing about whether nature or nurture (后天) decides what people will be like. Is it nature— what people are (41) with— that decides what they will be like? (42) is it nurture —what(43) to people when they are born —that decides what they will be like?

    Scientists have been studying twins to (44) if they can find the answer, because twins start out with the (45) DNA. Sometimes twins don’t live together at birth and grow up in different (46) and different places— so the nature is the same for both, but the nurture is different.

    When scientists (47) these twins in their later life, they some times find some surprising (48).

    Jim Springer and Jim Lewis were adopted（收養(yǎng)）by two different families at birth. They first met each other again thirty-nine years (49) and discovered they had a lot in (50). Both had been (51) twice. Their first wives were both named Linda and their second wives were both named Betty!

    Each twin had a son — one called his son James Alan and the (52) called his son James Alan, too. Their children each had a dog called “Toy”. They even arrived at their first (53) in the same color of car.

    So far twin (54) seem to show that both nature and nurture are important. What we have from birth, and how and where we live help to build (55) we are.

    1.A. born     B. grown    C. taught     D. made

   2.A. So     B. And    C. If     D. Or

   3.A. pretends    B. happens    C. falls     D. depends

   4.A. hear     B. win    C. see     D. plan

    5.A. nice     B. same    C. full     D. free

    6.A. families     B. cities    C. countries     D. nations

    7.A. believe     B. suggest    C. receive    D. compare

   8.A. numbers     B. discoveries    C. results     D. decisions

    9.A. ago     B. later    C. forward     D. behind

    10.A. common     B. fact    C. danger     D. trouble

   11.A. mentioned     B. married    C. succeeded     D. interviewed

    12.A. either     B. else    C. other     D. only

   13.A. competition     B. education    C. purpose     D. meeting

    14.A. studies    B. movies    C. challenges     D. mysteries

    15.A. what     B. when    C. where     D. who

 

【答案】

 

1.A

2.D

3.B

4.C

5.B

6.A

7.D

8.C

9.B

10.A

11.B

12.C

13.D

14.A

15.D

【解析】 略

 

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