think believe suppose guess expect eg I think

当主句的谓语动词为think believe suppose guess expect等时, 从句的否 定要前移到主句上. eg I think you are not right. (×) I don’t think you are right. I believe they haven’t finished reading the book yet. (×) I don’t believe they have finished reading the book yet He suppose that she can’t come. (×) He doesn’t suppose that she can come.

I think, We think, I don’t think, We don’t think等后有宾语从 句, 构成反意疑问句时, 依从句; 如think 等主语不是第一人称, 则依主句. I don’t think she can answer 　 this question, can she? He doesn’t expect we need to worry, does he?

另 请 注 意： if从句肯定否定均可, whether一般引导肯定从句。 Can you tell me if /whether she is our new teacher ? I want to know if he has never been there. Whether与 or not连用，if不与 or not连用。 I don’t know whether he has passed the exam or not. 介词后宾语从句用Whether引导，一般不用if引导。 We are thinking about whether we will go shopping. Whether可与不定式连用，而if不能。 I don’t know whether to buy this book.

有了以上的知识作基础，练练你 的能力，相信你一定能作对这些题。 一 选 择 填 空 D 1. I want to know _ _he can be here on time. A. who B. when C. where D. if D 2. Could you tell me ______? A. what your mother do B. what does your mother do C. your mother does D. what your mother does C 3. Did you know ____ a sports meeting next Saturday ? A. there would have to be B. if there were C. if there was going to be D. there was going to have 4. Tell me ___ , please. B A. How old is he B. how old he is C. he is how old D. how old does he

B 5. I asked him whether he ______ how to pronounce this word A. knows B. knew C. has known D. will know 6. Dick said that he ______ in a train to Washington at seven C yesterday. A. ride B. would ride C. was riding D. had ridden 7. Peter said that he ______ the way to the chemist’s shop. B A. does not know B. did not know C. do not know D. did not knew 8. He said that he ______ the next day. C A. will set off B. set C. would set off D. won’t set off 9. The teacher told us that the earth _______ round. A A. is B. was C. were D. be 10. He thinks he is right , _____? B A. does he B. doesn’t he C. is he D. isn’t he

二、 将下列每组两个句子用适当的词连接起来（注意时态和语序） 1. Do you like English ? Wei Fang asked me. If I liked Wei Fang asked me _______ English. 2. Were you at home before nine last night ? The policeman wants to know. If you were The policeman wants to know ______ at home before nine last night. 3. Has he come back from Guangzhou ? I asked my teacher. If had come I asked my teacher _____ he ______ back from Guangzhou. 4. I’ll go to the park. It doesn’t rain tomorrow. If doesn’t I’ll go to the park ______ it ______ rain tomorrow. 5. Can Mike drive a car ? Could you tell us ? If can drive Could you tell us ______ Mike _______ a car ? 6. Did Alice work out the problem herself ? I asked the teacher. If worked out I asked the teacher _____ Alice ______ the problem herself.

7. Are they planting trees now ? They didn’t tell us. If were They didn’t tell us ______ they ______ planting trees now. 8. He will come back in a week. I think … that will come I think _______ he ______ back in a week. 9. Who is he looking for ? Do you know ? Do you know ______ looking for ? Who he is 10. Why is the plane late ? I didn’t know … Why was late I didn’t know _______ the plane _____. 11. He has already come back. He told me. that had He told me _______ he _____ already come back. 12. How can I get to the Summer Palace ? Could you tell me ? how I can Could you tell me _______ get to the Summer Palace ?

13. Why didn’t he come yesterday ? Can you tell me ? why he didn’t Can you tell me _______ come yesterday ? 14. What are they doing ? Tom didn’t tell me what were. Tom didn’t tell me _______ they _______ doing. 15. When will we have an English test ? The when we would teacher didn’t tell us. The teacher didn’t tell us ______ have an English text. where would 16. Where will the meeting be ? I asked him. I asked him _______ the meeting ______ be.

2004. 11. 2.