单项选择题

听力原文：M: What's your hobby?
W: I like many things. Such as singing, dancing, music and so on. But I like nothing better than to go shopping.
What do we learn from the conversation?
A.The woman likes everything except going shopping.
B.The woman likes nothing as a matter of fact.
C.The woman likes many things as a matter of fact.
D.The woman's best hobby is dancing.

A.What
B.The
C.
B.The
D.
C.The
E.
D.The
F.
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单项选择题
听力原文： M: Did you take these pictures? They are very gooD.W: Yes, I think they turned out very well too. I'd like to bring my camera with me wherever I go. In that way if I see something attractive I can snap a picture of it.M: Carrying a big camera round is too much trouble for mE.W: My camera is really small enough. Here let me show you.M: That is a compact camerA.But you must know a lot about photography to get such professional looking results.W: Not necessarily. This camera is simple to work.M: Does this model come with a flash attachment for indoor shot?W: Better than that. It has a built-in electronic flash and an automatic focus too. I don't even have to worry about focusing.M: That's what I neeD.When I take pictures, they usually come out blurry because I don't adjust the lenses properly, And I hate photos that are out of focus. Is the camera like yours very expensive?W: Less than you'd expect. Why don't you check the prices at Headfields Demonstrate? This model is on sale there last week.M: I think I will. It certainly won't hurt to take a look.As the conversation begins, what are the man and woman doing?A.Looking at some photographs.B.Selling cameras.C.Teaching a photography class.D.Repairing camera equipment.
A.As
B.Looking
C.
B.Selling
D.
C.Teaching
E.
D.Repairing
F.
单项选择题
在英国权威的科学杂志《自然》上刊登的一篇美国科学家的论文说，研究人员在实验室里把抗虫害转基因玉米“BT玉米”的花粉撒在苦苣菜叶上，然后让蝴蝶幼虫啃食这些菜叶。四天之后，有44%的幼虫死亡，活着的幼虫身体也较小，而且没有精神。而另一组幼虫啃食撒有普通玉米花粉的菜叶，就没有发生类似现象。另据英国科学家的研究，与一般大豆相比，耐除草剂的转基因大豆中，防癌的成分异黄酮减少了。这些结论引起了科学家的担心，也引起了世界范围的不安。苏格兰科学家普斯陶伊的转基因土豆研究，情况却有所不同。去年秋季，普斯陶伊称，自己一项未经发表的实验结果证明，年幼老鼠食用转基因土豆10天后，其肾脏、脾和消化道都出现损伤，而且免疫系统也遭到破坏，他将这一切归咎于对土豆的基因操作本身。他的结论据说得到了14个国家20名科学家的支持。但英国最具权威的科研机构英国皇家学会宣布，该学会组织的6人专家组经过详细评估发现，他的研究无论在设计上，还是在操作和数据上，都充满漏洞，他的结论无法成立。然而，这场在英国引起并跨出国界的轩然大波却至今未平。转基因技术是一项先进的生物科学技术，这一点已在世界范围内取得共识。美国是转基因技术最先进的国家，据统计，美国的大学、科研机关和企业等已经开发出上百个转基因作物品种，其中仅有43个品种的安全性得到了美国食品和药物管理局的确认。面临转基因玉米和大豆正在进行大面积种植与大量出口以及由此引发争议的现状，美国国家科学院已经郑重承诺，将就转基因食品的安全性问题展开全面调查。看来，在发展转基因技术的同时，也是应当注意吸取任何一种现代工业技术发展过程中的教训的。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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