单项选择题 After you have written your summary , which demonstrates your full _____ of the text, you are ready to write a response . Because your essay cannot discuss every feature of a text or every idea the text has evoked.

单项选择题 These days, many people are afraid of nuclear technology because of the dangers associated with its use. In my opinion, although it is true that nuclear weapons pose the greatest threat to life, the use of nuclear technology for peaceful purposes also carries some serious risks.意为：这些天来，许多人害怕核技术，因为它使用的危险。我认为，尽管核武器对生命构成最大的威胁是正确的，但和平目的使用核技术也存在一些严重的风险。

单项选择题 Youth drug abuse is a serious problem nowadays in many cultures. Not only is illegal drug use on the rise, but children as young as ten years old are experimenting with alcohol and tobacco. The reasons for this behaviour are unclear, but certain sociologists blame the examples set by their elders.意为：青年吸毒是当今许多文化中的一个严重问题。不仅非法毒品的使用在增加，而且十岁以下的孩子也在尝试烟酒。这种行为的原因尚不清楚，但某些社会学家指责他们的老人所树立的榜样。