初中英語be動(dòng)詞知識(shí)點(diǎn)總結(jié)

2021-09-06 11:18:00 　來源：百度文庫

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初中英語be動(dòng)詞知識(shí)點(diǎn)總結(jié)！很多初中生在學(xué)習(xí)英語的時(shí)候都表示語法是一大難關(guān)，去年的中考英語只能夠，單項(xiàng)選擇題中增加了關(guān)于語法知識(shí)的分值，這就說明語法的學(xué)習(xí)是不可忽視的一個(gè)環(huán)節(jié)。下面，小編為大家?guī)?span style="color:#f00;">初中英語be動(dòng)詞知識(shí)點(diǎn)總結(jié)。　　

　　一、be 動(dòng)詞做系動(dòng)詞

　　1、系動(dòng)詞+表語”的結(jié)構(gòu)

　　當(dāng)be 動(dòng)詞做系動(dòng)詞使用時(shí)，主要構(gòu)成“系動(dòng)詞+表語”的結(jié)構(gòu)，在句子中做謂語。表語可以是名詞、形容詞、副詞、介詞短語等。例如：

　　The man is a science teacher.

　　Mary's new dresses are colourful.

　　Mother is in the kitchen now.

　　I have been there before.

　　They shall be here at 10:00 tommorow.

　　That can't be true.

　　You are not being very polite.

　　Your brother is being very annoying this evening

　　2、be 動(dòng)詞的一般疑問句，方法是把be 移到主語前面，也可說成是移到句首。

　　Is the man a science teacher? Yes, he is. / No, he isn't.

　　Are Mary's new dresses colourful? Yes, they are. / No, they aren't.

　　Was mother in the kitchen then? Yes, she was. / No, she wasn't.

　　Were you at home the day before yesterday? Yes, I was. / No, I wasn't.

　　Was she late this morning? Yes, she was. / No, she wasn't.

　　3、be 動(dòng)詞用在特殊疑問句

　　在特殊疑問句里，be 動(dòng)詞仍然移到主語前面，但特殊疑問句是以特殊疑問詞開頭的，所以be 動(dòng)詞只能說是移到主語前面，或者說是在特殊疑問詞的后面。例如：

　　Whose bike is broken? Xiao Ming's bike is.

　　Who was singing in the room? Mr. Zhang was.

　　Where are you from? I am from Wuhu.

　　What class were you in? We were in Class 2.

　　How old is Tom? He is ten.

　　4、be 動(dòng)詞的否定句

　　be 動(dòng)詞做謂語時(shí)，它的否定形式是在be 后加not，并且可以縮寫。例如：

　　It is not sunny today.

　　Tom and his friends are not in the park.

　　You were not nine years old when I went to the university.

　　He was not often late for his class when he was a student.

　　I wasn't here yesterday.

　　My parents weren't at home last Sunday.

　　5、be 動(dòng)詞的祈使句

　　be 動(dòng)詞的祈使句有肯定和否定兩種形式�？隙ㄐ问绞且詁e 動(dòng)詞開頭，而否定形式或強(qiáng)調(diào)句形，要加don't 或do。例如：

　　Be careful!

　　Be a good boy!

　　Don't be silly!

　　Don't be a fool!

　　Do be obedient!

　　Do be careful.

　　二、be 動(dòng)詞做助動(dòng)詞

　　助動(dòng)詞be 有兩個(gè)基本用法，一是與謂語動(dòng)詞一起構(gòu)成各種時(shí)態(tài)，二是構(gòu)成被動(dòng)語態(tài)。

　　1、“be + 現(xiàn)在分詞組”成各種進(jìn)行式時(shí)態(tài)。例如：

　　Tony's maid is washing his new car.

　　The children are playing in the field.

　　Samuel was eating when I came in.

　　We have been living here since 1959.

　　This time next day they will be sitting in the cinema.

　　三、注意事項(xiàng)

　　英語句子中，為了表達(dá)時(shí)態(tài)或被動(dòng)語態(tài)的需要，常常會(huì)出現(xiàn)幾個(gè)助動(dòng)詞連在一塊兒使用。也就是說，助動(dòng)詞be會(huì)和其它助動(dòng)詞一起使用。這時(shí)候，整個(gè)句子的一般疑問句和否定句，就不一定是對(duì)be 進(jìn)行變化了，而是以第一個(gè)助動(dòng)詞為主進(jìn)行變化。即哪個(gè)助動(dòng)詞在先，就以它為主進(jìn)行變化。例如：

　　[肯定句] All the wonderful birds can be found in our Bird Park. (助動(dòng)詞有兩個(gè)：can be )

　　[疑問句] Can all the wonderful birds be found in our Bird Park? (移第一個(gè)can)

　　[否定句] All the wonderful birds can not be found in our Bird Park. (在第一個(gè)can 后加not)

　　[肯定句] I have been there before. (兩個(gè)助動(dòng)詞：have, been )

　　[疑問句] Have you been there before?

　　[否定句] I have not been there before.

　　[肯定句] I shall be having my supper at six tomorrow evening. (兩個(gè)助動(dòng)詞：shall, be )

　　[疑問句] Will you be having my supper at six tomorrow evening?

　　[否定句] I shall not be having my supper at six tomorrow evening.

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　　四.助動(dòng)詞be，無詞義，輔助主要?jiǎng)釉~一起在句中作謂語動(dòng)詞。用法如下：

　　1. be+doing：構(gòu)成進(jìn)行時(shí)態(tài)，有現(xiàn)在和過去兩種進(jìn)行時(shí)態(tài)。如：

　　The girls is reading and copying the new words now.

　　Young Tom was always asking questions and trying out new ideas.

　　2. be+going to do，表示"打算或?qū)⒁瞿呈?quot;，be有現(xiàn)在和過去兩種形式。如：

　　We are going to plant trees in the park.

　　I didn’t know if she was going to come here.

　　3. be+to do，表示"按計(jì)劃安排將要做某事"。如：

　　The new shop is not to be opened till next Monday. One night an angel came to

　　Mary and told her that she was to have this special boy.

　　五.there be

　　there be句式為：there be+主語部分+狀語部分，表示"某處存在某物"，be常用現(xiàn)在時(shí)，過去時(shí)和將來時(shí)等。如：

　　Oh, cool! And there are many things to see. There is even a deer park in Sanya.

　　There are about 80 pyramids in Egypt.

　　Will there be a football match in your school next week?

　　六.實(shí)義be

　　可以將be視為實(shí)義動(dòng)詞，因?yàn)樗哂袑?shí)際的詞義，如"成為;做;發(fā)生;舉行;逗留;到達(dá)"等。如：His daughter wants to be a doctor for animals in her twenties.Kates birthday party

　　will be at half past six this evening.Jim has been in China for

　　morethan two years, but he has not yet been to Yichang.

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