人教新课标版选修八

Unit 2 CloningLearning about Language

Discovering useful words and expressions. 1 Complete the sentences using suitable words from the text. The first letter of each word has been given.

1. In many aspects natural clones, such as identical twins, do not d____ iffer greatly from man-made ones. ast down when the procedure 2. He was c____ he had used to produce a mammal clone ended in failure. ccumulate in a deserted house. 3. Dust will a__________ 4. Her memory is so excellent that she could xact names remember the e____

5. She was not a________ ltogether pleased at the corrections he made to her work. 6. Grey decided to move to the countryside bjections to it. and his wife made no o________ 7. According to the constitution, it is ndertake compulsory for a citizen to u________ military service. 8. The media has a m____ oral responsibility to report news truthfully.

2 Replace the underlined parts with words that have the same meaning. Rewrite the sentence when necessary. 1. Compared with her family, and especially

her nephew, her niece Daisy is very honestabout her opinions. straightforward

2. The decisions of the conservative factory leaders that had been made without any reason

caused anger among the workers.arbitrary The arbitrary decisions of the factory

leaders caused anger among the workers.

3. Is the opera house in the business area of Beijing?

commercial

4. The producer of the media programme disagreed with Jennifer joining in the chorus. made an objection to

5. Before you can make a loaf, you need to get some flour. obtain

6. You owe the lady an apology. I will notallow you to leave unless you apologize for

what you have done.

will forbid

3 Complete the passage using the correct form of the words below. complicated fate attain cast accumulate reform carrier

As Freddy the frog grew older, he only had attain – to continue his one ambition left to _______ career forever. To do this he thought that he would have to clone himself. The doctor complicated explained that this was a ____________ procedure that he should consider carefully. Shortly after Freddy did some research, he discovered the _____ fate of Dolly the sheep. carrier of more It seemed as if a clone was a ______

weaknesses than its original. Freddy was cast ____ reform the down and looked for some way to _______ cloning procedure to avoid this problem. Sadly this seemed impossible. So Freddy made up his accumulate mind to enjoy his singing and to __________ as many happy experiences as he could so that when he retired he would be able to look back on his life with satisfaction.

Explanationbe bound to 注定; 有义务做明天天气一定会变好。 The weather is bound to get better tomorrow. 我觉得有必要对你说, 你酒喝得太多了。 I feel bound to tell you that you are drinking too much.

语法讲解1. 同位语 the Appositive 同位语是句子成分的一种, 它位于

名词、代词后面,

说明它们的性质和情况, 它可以由名词、代词、名词性

短语或从句充当。

同位语的表现形式有以下几种： 1) 名词 Tom, our monitor, is a handsome boy. 2) 代词 I myself will do the experiment. 3) 数词 She is the oldest among them six. 4) 从句 He told me the news that the plane had exploded. 他告诉我飞机爆炸的消息。

5) 由such as, that is引导 Some subjects, such as maths and physics, are very difficult to learn. 某些学科，例如数学和物理，是很难学的。

6) 由of引导 The city of Beijing has been greatly changed since 2000. 自从2000年以来，北京市发生了很大的变化。