初中英語語法大全 必考語法有哪些

初中英語語法大全：概念：經(jīng)常、反復(fù)發(fā)生的動作或行為及現(xiàn)在的某種狀況。時間狀語：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc.

初中英語語法大全

一般現(xiàn)在時

概念：經(jīng)常、反復(fù)發(fā)生的動作或行為及現(xiàn)在的某種狀況。

時間狀語：always, usually, often, sometimes, every week (day, year, month…), once a week, on Sundays, etc.

基本結(jié)構(gòu)：①be動詞；②行為動詞

否定形式：①am/is/are+not; ②此時態(tài)的謂語動詞若為行為動詞，則在其前加don't,如主語為第三人稱單數(shù)，則用doesn't，同時還原行為動詞。

一般疑問句：①把be動詞放于句首；②用助動詞do提問，如主語為第三人稱單數(shù)，則用does，同時，還原行為動詞。

現(xiàn)在進(jìn)行時

概念：表示現(xiàn)階段或說話時正在進(jìn)行的動作及行為。

時間狀語：now, at this time, these days, etc.

基本結(jié)構(gòu)：am/is/are+doing

否定形式：am/is/are+not+doing.

一般疑問句：把be動詞放于句首。

一般將來時

概念:表示將要發(fā)生的動作，或存在的狀態(tài)及打算，計劃或準(zhǔn)備做某事

時間狀語：tomorrow,next day,soon,in a few minutes....

基本結(jié)構(gòu)：1、be going to 2、will/shall do

否定：1、 was / were not 2、行為動詞前加didn't ，同時還原行為動詞

一般疑問句：1、be 放于句首 2、will /shall 提于句首。

初中英語語法必考內(nèi)容

賓語從句

①定義

在句子中起賓語作用的從句叫做賓語從句。

②連接詞

that: I think that you can pass the exam.

Whether/if:I wonder if / whether I can get some advice from you.

Ask him whether / if he can come.

“Wh”: I don’t know what the word means.

I don’t know where he found the book.

只用whether的情況：

1. 與or not連用：

I don’t know whether it’s raining or not.

2. 與動詞不定式連用：

He doesn’t know whether to accept the invitation.

3. 連接詞前有介詞時：

It depends on whether he is coming.

③時態(tài)

1. 主句是一般現(xiàn)在時態(tài)，從句根據(jù)實(shí)際情況而定(各種時態(tài)均可)

She wants to know what he has done for the exam.

2.主句是一般過去時態(tài)，從句用相應(yīng)的過去的時態(tài)。

1)She said that she was a student.

2)She said that she would fly to Japan in a week.

3)She said that she had finished her homework already.

3. 如果賓語從句說的是客觀真理、自然現(xiàn)象或事實(shí)時，這時賓語從句要用一般現(xiàn)在時態(tài)。

The teacher said that the earth goes round the sun.

定語從句

①定義

在復(fù)合句中修飾名詞、代詞的從句叫定語從句。

②先行詞

先行詞指人 who /that

先行詞指物 which/ that

定語從句一般緊跟被修飾的名詞或代詞(即先行詞)后

③關(guān)系代詞

關(guān)系代詞代替先行詞在句子中擔(dān)當(dāng)成分，所以從句中不可再出現(xiàn)其他代替先行詞的代詞

④翻譯方法 “…. 的”

Whom: 先行詞指人，則代替先行詞在定語從句中充當(dāng)賓語(包括介詞的賓語), 與who的區(qū)別是如果前面帶介詞則必須用whom

1. This is the teacher whomwho we like best.

2. I don’t like the boy to whom you are talking.

Whose : 指人或物，作定語，表示 “…的”

eg: Harry is the boy whose mother is our math teacher.

關(guān)系代詞只能 that 的特殊情況：

1.先行詞前有序數(shù)詞修飾時：

This is the first gift that my parents bought me.

2.先行詞前有形容詞最高級修飾時：

This is the most exciting film that I have ever seen.

3. 先行詞是不定代詞something, anything等時.

e.g. Is there anything that you want in this shop