5．Then ________ of them would be left to continue the species. 这样它们可能一个也留不下来传宗接代了。 答案：1.that　2.patience; paid off; a　3.whether; where　4.because; a; its; as　5. none Ⅳ.语法过关 同位语从句 1．We've just heard a warning on the radio ________ a typhoon may be on its way. 2．The fact ________ this country spends more on its military than on education and health care combined is a serious and worrying thought. 3．I made a promise to myself ________ this year, my first year in high school, would be different. 4．I have no idea ________ the cell phone isn't working, so could you fix it for me? 5．Don't worry! There is still a great chance ________ we can make up for the lost time. 答案：1.that　2.that　3.that　4.why　5.that Ⅴ.语篇填空 On the other hand, Dolly's appearance raised a storm of ①________(object) and had a great impact ②________ the media and public imagination. It became controversial. It suddenly opened everybody's eyes to the ③________(possible) of using cloning to cure serious illnesses and even to produce human beings.④________ at present human egg cells and embryos needed for cloning research are difficult ⑤________(obtain), newspapers wrote of evil leaders hoping to clone themselves to attain ⑥________ ambitions. Religious leaders also raised moral questions.

　　Governments became nervous and more conservative. Some began to reform their legal systems and forbade research into human cloning, ⑦________ other countries like China and the UK, continued to accumulate evidence of the abundant medical aid ⑧________ cloning could provide. However, scientists still wonder ⑨________ cloning will help or harm us and where it ⑩________(lead) us.

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