Unit 3 Back to the past Grammar and usage(2)_ Subject-verb agreement课件（233张）

课件23张PPT。
1. The news are important.
2. There are a chair and two tables
in the room.
3. He don’t allow his son to stay out late. Lead in___
is___
is_____ doesn’t True or false
Grammar and usage
Subject-verb agreement
主谓一致
定义：
主谓一致是指_______________________
必须与______保持一致。谓语动词的单、复数形式主语 Presentation and exercises 1) a.The city was founded in the 8th century BC.
b.The food they served on the plane was delicious.
Group 1单数不可数1.当主语属于以下情况时，谓语动词要用
单数形式。
1)主语是_______ 名词或_______名词时；2) a. Two hours is too short for a visit.
b. Little Women is a great novel.
Group 11.当主语属于以下情况时，谓语动词要用
单数形式。
2)主语是表示度量、距离、金额、时间、书名等复数名词时，通常把它们看作一个整体；3) a. Travelling to Pompeii ______ (be) exciting.
b. That it keeps raining cats and dogs ______ (worry) the tourists.isworriesGroup 1动名词1.当主语属于以下情况时，谓语动词要用
单数形式。
3)_______、动词不定式或从句充当主语时； 1. To work hard ___ (be) necessary.
2. The Arabian Nights ___ (be) an
interesting book.
3. 1,000 dollars _______ (mean) a lot to her.
4. How you can get there ___ (be) a problem.
isisismeansExercises： ·What we need _______ (be) more time. ·What they need ______ (be) a textbook.·What we need _______ (be) doctors. isareis注意：
what引导的从句作主语时，谓语动词一
般用单数。但如果表示复数意义，谓语
动词用复数。1) Both cities were very wealthy, attracting people from all over the country.
2) Contrary to what we had expected, the noodles and rice they served on the plane were quite delicious.Group 2复数不同2. 当主语属于以下情况时，谓语动词要用
复数形式。
1)主语是_____ 名词时；
2)主语是由and连接的两个或两个以上的词或词组，且指_____的人、事物或概念时;
· The teacher and writer _______ (be) from Canada.
· A knife and fork _______ (be) on the table.
· Going to bed early and getting up early _______(be) a good habit.
isisis单数注意：
但如果由and连接的两个或两个以上的词或词组，指同一人、事物或概念时，谓语动词要用_______形式。 英语中并列结构表示整体概念的还有：
a needle and thread 针线
a watch and chain?? 一块带链的表 bread and butter?? 黄油面包
Exercises:
1. The teacher and the writer ____(be) from Canada.
2. Steam and ice ____ (be) different forms of water.
3. A poet and artist ____ (be) coming to speak to us
about Chinese literature and painting tomorrow
afternoon(2006江苏).
areareis
1) Our team is very important to me .
2) Our team are now making their way
to Xinjiang.Group 3单数复数3.当主语是team, class, family等集合名词时，当视其为整体时谓语动词用 _______ 形式；当着重于包含的成员时谓语动词则用_______ 形式。
· The cattle (牛) are grazing in the fields.
· The police were searching for him just now.
· People present are for this plan. TTT复数注意：
但集合名词cattle, police, people等作主语时，谓语动词用_______ 形式。True or false
Exercises:
True or false
1. My family were very poor ten years ago. ( )
2. My family are fond of music. ( )
3. The class consist of twenty-five boys and
twenty girls. ( )FTF ___
was_____ consistsSummaryCompetitionGroup1
BoysGroup2
Girls Where we will hold the party _______ (depend) on the weather.depends The whole family ____ (be) watching TV attentively now.areThe writer and translator
______ (be) delivering a speech in our school now.is Improving the production process ___(be) necessary.is Twenty years_____(have)
passed since I came to the school.hasThank you for listening!