引起“科学家的担心”和“世界范围的不安”的原因是()
A. “BT玉米”抗虫害能力并不能达到百分之百，某些转基因大豆可能会致癌。
B. 某些转基因作物会对生态环境造成污染，还有一些会削弱作物对人体健康的作用。
C. 转基因作物会毒杀昆虫或影响昆虫的发育，并会降低人体自身的防癌功能。
D. 由于毒素存在，某些转基因作物会污染环境，因此影响人体的健康。
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听力原文：You didn't do well in the test. What's the matter？
(4)
A. It was wonderful.
B. I didn't check the answer.
C. What did you say？
D. I like it very much.
听力原文：Could you mend my broken clock？
(5)
A. Sure.
B. Thanks.
C. Excuse me.
D. Yes, please.
One player, has won the game when______.
A. he attacks the other player's king
B. the other player's king can only move one square
C. the other player's king can not move anywhere
D. he says "check" to the other player
听力原文：Would you like to go swimming with me？
(2)
A. No, you go yourself.
B. Yes, please.
C. No, I wouldn't.
D. Yes, I'd love to.
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