八年级上册第二单元语法

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八年级上册第二单元语法
1.free(反义词)busy/full
2.be free to do sth.有时间做某事
have time to do sth. 有时间做某事
3.be busy with sth.忙于某事
be busy doing sth.忙于做某事
4.How come?为什么?(感到奇怪而询问)
可以单独用,也可以后面接陈述句
5.have lessons上课
6.What kind of什么种类
7.swing(swung) 摇摆
swim(swam)游泳
8.have to do 不得不做(客观)
don’t have to 不必做
must必须(主观)
mustn’t禁止
9.may be可能是
maybe/perhaps也许/大概
10.频率副词(often/usually等)位置:实义动词前,助动词/情态动词/系动词后面
11.ever曾经(用于疑问句/否定句),多用于完成时。

once曾经(用于一般过去式)
12.once 一次twice二次three times 三次four times四次at once立once again再一次
13.every day每天(副词短语)
everyday日常的(形容词)
14.hardly几乎不
hardly ever几乎从不
15.What program do you like?你喜欢什么节目?
16.help sb. to do sth帮助某人做某事
help sb. do sth. 帮助某人做某事
help with在某事方面帮助
with the help of在……帮助下
helpful 有用的helpless无用的
17. sometimes 有时(用how often提问)
some times几倍(how many times 提问)
sometime某个时候(when提问)
some time一段时间(how long提问)
记忆顺口溜:分开是一段,牵手是某时,合加s是有时,分加S是几倍。

18.hardly否定副词,反义疑问句(前否后肯)
19.hard(形容词)=difficult,困难的
(副词),努力地,大量地
20.I wish I could fly in the sky, as the birds do.(wish后面的句子用过去式)
我希望我能在空中飞,像鸟一样飞。

21. 我们应该尽力去保护环境,趁还来得及。

We should try our best to protect the environment
before it’s too late.
22.Junk food垃圾食品
Junk shop旧货店
Junk mail垃圾邮件
23.a cup of coffee一杯咖啡
make coffee冲咖啡
white coffee白咖啡
24.want/would like sth想要某物
25.want/would like sb. to do sth想要某人做某事want/would like to do sth想要做某事
26.feel like doing sth.想要做某事
27.be good for对······有好处
be good at=do well in擅长/在某方面做得好
be good to=be friendly to对······友好
be good with=get on well with善于处理/相处得好
28.heath健康healthy健康的healthily健康地unhealthy不健康的unhealthily不健康地
29.keep/stay/be healthy保持健康
keep/stay/be in good health保持健康
30.ask sb about sth询问某人关于某事
ask sb (not)to do sth要求某人(不)做某事
ask sb for sth 要求某事
ask for help寻求帮助
31.Here/There +谓语+主语(倒装句,主语是名词)Here comes the bus.
32.Here/There +主语+谓语(不倒装,主语是代词)Here you are.
33.percent 百分之···(单复数相同)
谓语动词与percent of后的单词保持一致
对percent 提问用what
如:Eighty percent of students wear glasses?(对划线部分提问)What percent of students wear glasses?
34.one to three times a week一周一至三次
three or four times a week一周三或四次
35.not...at all 一点也不
Not at all. 不客气。

36.to one’s surprise使某人惊讶的是
in surprise 惊讶地adv.
surprise sb使某人吃惊
be surprised at/that从句,对......感到吃惊
37.the answer to ······的答案
the key to ······的钥匙
The way to ······的方法/道路
38.although/though虽然......但是......
although/though做连词(可互换),不能与but连用。

though做副词时,放句尾,前用逗号,(不能与although互换),
39.It is good to relax by using the Internet.
It is +adj. for sb to do sth
it是形式主语,to do是真正的主语。

形容词形容事情+for
It is +adj. of sb to do sth
形容词形容人+of
It is very kind of you to help me.
40.We think that the best way to relax is through exercise.
我们认为最好的放松方式是通过锻炼。

excise习题,早操,眼保健操(可数),
do morning excises做早操
锻炼(不可数)
the best way to do sth.做某事的最好方法
41.through穿过(空间)
across 穿过(表面)
over在······上(垂直)
go/run/walk across=cross穿过
42.be full of/be filled with充满,装满
43.How come?=why感到某事很奇怪,可以直接使用,也可加陈述语序的句子。

How com you don’t like it?=Why don’t you like it?
44.Such as 用来列举同类人或事物的几个例子,+n./pron./ving
Boys such as Jim and Tom are friendly.
45.Spend time/money (in) doing/on sthing
人+pay+钱+for+物
It takes sb. some time to do sth.
物+cost+人+钱
46.die死v. died dying
dead 死亡的adj. death 死亡n.
die of 死于(内因)die from(外因)
be dying to do sth.渴望做某事。

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