初中英语 人教版七年级上册第三单元语法与单词

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七年级上册第三单元语法
一名词性物主代词
1.物主代词
物主代词分为形物代和名物代。

形物代和名物代一览表。

2.名物代的用法
2.1名物代=形物代+名词
(形物代相当形容词,后跟名词;)
This is my notebook.=This notebook is mine.这是我的笔记本。

2.2名物代在句首作主语。

谓语动词的单复数取决于名物代所指代的数。

His watch is purple. Mine is black.
These are his pencils. Yours are in the pencil box.
2.3名物代可用在动词或介词后作表语或宾语。

This computer is his.这台电脑是他的。

Your dog is ill and I am worried about mine.
2.4 “名词+of+名词性物主代词”(双重所有格。


Jane is a friend of mine. Jane是我的一位朋友。

二形容词性物主代词
1. 形容词性物主代词其后必须跟名词。

his bike 他的自行车 her desk 她的书桌
2. 名词前有形物代,不用冠词(a, an,the)或指示代词(this, that, these, those)
3.形容词性物主代词与形容词一起修饰名词时,要放在形容词之前。

his English books 他的英语书
三一般现在时be一般疑问句
1.结构为:Be+主语+...? 肯定:Yes, 主语+be 否定:No, 主语+be+not.
-Is this your book?
-Yes, it is. 是的。

-Are you Jack?
-No, I’m not.
2.注意:肯定,主语与be动词不缩写;否定,be动词与not构成缩写(No, I’m not.)。

七年级上册第三单元单词
一.miss/missing/lost
1.①miss v. 思念
①miss v. 错过
miss doing sth错过做某事
2.missing adj. 失踪的
be/get lost 迷路
feel lost 迷惘,困惑
3.①lost adj.丢失的,困惑的
②lost (动词lose的过去式) lose-lost-lost遗失,丢失
lose one's way迷路
4.①lose丧失、失去
Carol lost interest in study in her teens.
②输掉(比赛、辩论、选举等)
He just lost three games yesterday.
5.loss n.失去,损失
二.ask
ask v. 询问
1.ask (sb.) about sth. 问某人某事
Visitors usually ask about the history of the castle.
2.ask (sb.) to do sth.要求/让某人做某事
He asked to see the doctor.
3.ask (sb.) for sth. 问某人要某物
He asked Lily for the report once again.
4.ask for 要求
I'm going to ask for help.
三.help
1.help
1.1help v. 帮助,帮忙
1.1.1 help (sb.) (to) do sth. 帮助(某人)做某事1.1.2 help (sb.) with sth. 帮助(某人)做某事Can I help you with some housework?
1.1.3 help oneself (to sth.)自己取(食物)Please help yourself to some cakes.
请随便吃些蛋糕。

1.1.4 help out 分担……工作,帮一把
I need someone to help out in the shop.
1.2. help n. 帮助,帮忙
1.2.1 with the help of /with sb's help 在某人/某事物的帮助下1.2.2 give sb. help 帮助某人
1.2.3 ask (sb.) for help 请求(某人)帮助
1.2.4 get/receive help 得到帮助
2.helpful有用的,乐于助人的
it's helpful (for sb.) to do sth.做某事对某人有帮助
3.helpless无助的,没用的
四look for/find
1.look for 寻找,强调寻找的动作。

I'm looking for my keys in the room.
2. find 找到,强调结果。

find-found-found
I found my keys under the bed.
3 find out查明
五提建议What about/How about.. /Let’s../Shall we.?
1.What about/How about
1.1What about/How about+doing
1.2What about/How about+名词
1.3 What about/How about+代词宾格
What about/How about going shopping?
What about/How about this skirt?
I like apples. What about/How about you?
2.Let’s../Shall we..?
2.1Let’s+动词原形
2.2 Let’s+动词原形, shall we?
2.3 Shall we+动词原形?
Let’s go shopping.
Let’s go shopping, shall we?
Shall we go out for a dinner?
3.提建议What about/How about.. /Let’s../Shall we.?
答语Good idea./That sounds good.。