高1英语语法强调句型新课标人教版1.pptVIP

Grammar 强调句型;Translate the following into English orally, paying attention the usage of it: 1.It was not until yesterday that I met my old friend. 2.It is in a small factory that my brother is going to work. 3.It is a small factory where my brother is going to work. 4.It is five months since I arrived in New York. 5.Was it in the street that you met her? 6.Who was it that called him “comrade”?; Grammar 强调句型 It is /was +强调部分+that/who/whom +其他成分 这个句型用来强调除谓语以外的各种句子成分,被强调部分必须放在it is/was 后面，如果强调的部分是人，可以who/whom 来代替that. ; 需要注意的是： 1.在此结构中, be 动词必须是单数，因为主语是it . 连接词必须是that（指人时也可以是who/ whom) 2.主谓一致 ,在强调句型中，被强调部分作主语时，其形式必须与谓语动词在人称和数上保持一致。 ;3.人称照应：在强调句型中，若强调主语，代词用主格，若强调宾语，代词用宾格。 ;eg: ⑴It was not until his father came that the boy began to do his homework. ⑵It was not until 12 o’clock that he arrived home. ⑶It was because he was careless that he lost his job. It was because of his carelessness that he lost his job. ⑷It was at 7:00 a.m that the plane took off. ⑸It was for three days that he stayed here.;7.通常判断是否是强调句的标志是：把强调结构“it is /was +---+that 去掉，若句子仍然成立，就是强调句，否则不是. eg: ⑴ It is the true that he once went to America.（不是强调句型） 　　⑵ It was at 8 o’clock that he came back.; 8.It 引导的强调句不能用来强调条件状语从句和让步状语从句，可强调because 引导的原因状语从句，却不能强调as/since 引导的原因状语 从句，可强调so that 引导的目的状语从句,却不能强调so that 引导的结果状语从句。 ;Practice;1.The biggest problem of Chinese farmers is the shortage of arable land. It is the shortage of arable land that is the biggest problem for Chinese farmers. 2.The plant grown in greenhouses are protected from the wind, rain and insects. It is the plants grown in greenhouses that are protected from the wind, rain and insects. 3.Future agricultures should depend on high technology as well as traditional methods. It is high technology as well as traditional methods that future agriculture should depend on.;II. Rewrite the sentences below, emphasizing as many parts as possible. 1).Some people in South America still practise this kind