初二英语重点知识点整理
英语是中考一门十分重要的科目,下面是初二英语重点知识点总结,希望能够对大家英语的学习有所帮助。
一般将来时
1.用现在进行时表将来时(表示按计划安排要发生的事件。)
What are you doing this weekend?
I’m playing soccer with Jim.
Are you visiting the aquarium tomorrow? Yes, we are.
2.用be going to do表将来时(表示明确的打算或用来表示必然,很可能发生的事或自然现象。)
It is going to rain this afternoon.
We’re going to have a new subject this year.
3.用will do表示将来时(表示单纯的将来概念或表示“意愿”。)
I will see you tomorrow.
Will you please open the door?
现在完成进行时
1.构成:have/has+been+现在分词
2.用法:用来表示某一动作在过去开始,一直延续到现在,有可能刚刚结束,也有可能还要继续下去。
3.与其连用的时间状语:
现在完成进行时常与for 2 hours, since 1986, all this morning, these few days 等表示一段时间的状语连用。如:
How long have you been skating?
What book have you been reading these days?
反义疑问句
1.前一部分肯定,后一部分否定;前一部分否定,后一部分肯定。如:
Henry is a good boy, isn’t he?
She cant’ drive, can she?
2.除there be句型之外,疑问句的主语必须与陈述部分的主语在人称、数、性方面保持一致。如:
She went there last Sunday, didn’t she?
Mr. White was careless, wasn’t he?
The kite flies very high, doesn’t it?
They study hard, don’t they?
We won’t go there, will we?
3.如果陈述句有一个助动词(包括情态动词),其疑问句用同一助动词(情态动词)。如:
You can swim, can’t you?
He hasn’t met my sister, has he?
4.当陈述句是“I’m +表语”时,由于“am not”无省略形式,附加疑问句用“aren’t I”代替。如:
I’m late, aren’t I?
I’m a student, aren’t I?
5.当陈述部分是祈使句时,后面的附加疑问句用will you? /won’t you?/can you? /can’t you?祈使句的否定结构后只能用will you? 如:
Open the window, won’t you?
Sit down, can you?
Don’t forget, will you?
6.如果陈述句是there be结构,在附加疑问句中用be not there结构? 如:
There is something wrong, isn’t there?
There won’t be any trouble, will there?
7.当前面的陈述句中有含否定意义的如no, never, hardly等词时,应视为否定句,其后的附加疑问句应用肯定。如:
He has few friends, does he?
You have never been here, have you?
She can hardly write her name, can she?
8.当陈述部分是let’s…时,其后附加疑问句用shall we?
当陈述句部分是let us…时,其后附加疑问句用will you?
Let’s go home together, shall we?
Let us go home, will you?
9.反意疑问句要用yes, no来回答。只要事实是肯定的,用yes;事实是否定的,用no.不管提问时是肯定还是否定。
介词用法
1.具体时间前介词用at。
He gets up at half past seven every day.他每天七点半起床。
She goes to bed at eleveno’clock.她十一点睡觉。
2.表示“在早上,在下午,在晚上”的短语中用介词in,且定冠词the不能省略;表示“在中午,在夜里”的短语中介词用at,不加冠词。
in the morning在早上,in the afternoon在下午,in the evening在晚上
at noon在中午,atnight在夜里
3.表示“在某天”、“在某天的上午、下午等”的短语用介词on。
What do you usually do on Monday morning?星期一上午你通常做什么?
Do you sometimes go out to ea ton Friday evening?有时你星期五晚上出去吃饭吗?
He watches DVDs on Saturday night.星期六晚上他看DVD。
Parents take children to parks on June 1.六月一日,家长们带着孩子去公园。
4.在this,last,next,every等词前面既不加介词,也不用冠词。
What are you doing this afternoon?今天下午你做什么?
He visits his grandma every Friday.他每个星期五都去看望祖母。
祈使句
祈使句主要用来表示说话人的请求、命令、建议、叮嘱等意图。祈使句一般不用主语,读时用降调。为使语气委婉、礼貌,常在句首或句尾加please。在句尾时,please前多用逗号。
1.祈使句肯定形式的谓语动词一律用动词原形。
Go and see.去看看。
Come in,please.请进。
2.祈使句的否定形式常用don‘t于句首。
Don’t look at your books.不要看书。
Don‘t play on the road.不要在马路上玩。