2021版外研版选修三英语学案 Unit 4 突破 语法大冲关.doc

1、1 主谓一致() 一、数量概念作主语时的主谓一致 观察例句 1Five minutes isn t enough to finish this work. 2Most of the workers are against the plan. 3A number of students have made up their minds to take part in after- school activities. 4The number of students who have made up their minds to take part in after- school activit

2、ies is 120. 归纳用法 1表示时间、距离、长度、重量等的复数名词短语作主语时，谓语动词用 单数形式。 2some，most，rest 及分数、百分数等作主语时，谓语动词的单复数根据 some 等所代替的名词而定。 3 “a number of可数名词复数”作主语时，谓语动词用复数形式。但是， “the number of可数名词复数”作主语时，谓语动词用单数形式。 即学即练 1 单句语法填空 Many people say 1，000 dollars is(be)a lot of money. About 70 per cent of the earths surface is co

3、vered(cover)with water. The number of the students in middle school is (be)increasing year by year. The rest of the girls are (be)fond of music. 二、不定代词作主语时的主谓一致 观察例句 1Each of the books is worth reading. 2Both of the sisters are interested in medicine. 3All are present at the meeting today. 4All of t

4、he information is very important. 2 5None of them is/are aware of the danger. 归纳用法 1either，each，little，much 等作主语时，谓语动词用单数形式。 2both，few，many，several 等作主语时，谓语动词用复数形式。 3all 指可数名词复数，作主语时，谓语动词用复数形式；若指不可数名词， 作主语时，谓语动词用单数形式。 4none 指可数名词复数，作主语时，谓语动词用单、复数形式均可；若指 不可数名词，作主语时，谓语动词用单数形式。 即学即练 2 单句语法填空 Since ever

5、yone is (be)here，lets begin our meeting. None of the tasks has/have(have)been finished so far. All are(be)willing to reach an agreement. 三、其他情况作主语时的主谓一致 观察例句 1 To read English aloud every morning is of great benefit to your English study. 2Staring at someone in public is impolite. 3What he said has

6、been recorded. 4What we badly need are good teachers. 5There is a table and four chairs in the room. 6Mr.Smith，who is now downstairs，is asking to see you. 7The injured of this accident are being taken good care of in hospital now. 归纳用法 1 单个动词不定式(短语)、 动名词(短语)或从句作主语时， 谓语动词用单数。 2当 what 引导的主语从句表示复数概念时，谓

7、语动词用复数。 3there be 句型中，be 动词的单复数与最靠近它的主语一致。 4定语从句中关系代词作主语，谓语动词与先行词一致。 5theadj.指一类人谓语动词用复数。 即学即练 3 单句语法填空 What I say and think are(be)none of your business. 3 There is(be)an old temple and some ancient trees on the top of the mountain. Having a balanced diet in our daily life is(be)good to us all. .单句

8、语法填空 1I，who am(be)your close friend，will try my best to help you out of trouble. 2Few of his family are(be)in support of him，which makes him very sad. 3Listening to music makes(make)me relaxed after a busy day. 4The number of students in that school has(have)greatly increased in recent years. 5It is

9、 said that everybody is(be)going to take part in the game this afternoon. 6The rich are(be)not always happier than the poor. 7The factory used 65 per cent of the raw materials，the rest of which were(be)saved for other purposes. 8Fifty dollars is(be)too expensive for the pen and you should think abou

10、t it carefully. .完成句子 1About three- fourths of the surface of the earth is water 地球表面大约 3/4 是水。 2About 50 per cent of the students in our school are girls 我们学校大约 50%的学生是女生。 3Since everyone is here，lets begin our meeting. 既然大家都到了，我们开始开会吧。 4None of the information about him has been received 关于他的消息一点儿也没收到。 5How to solve the problem is to be discussed at the meeting. 如何解决这个问题将在会上讨论。 6A number of students are from the south 不少学生来自南方。