八年级英语上册第一单元重点知识

发布 2022-12-16 13:29:28 阅读 4454

unit 1

一,grammars:

提问频率:how often

1, 频率两类: 频率副词:always, usually, often, sometimes, hardly ever, hardly, never

频率短语:once a day , three times a month , every day 等。

2,eg:

1) he often surfs the internet.(划线提问)

how often does he surf the internet ?

2) my mother watches tv every day.(划线提问)

how often does your mother watch tv?

3, 区别于对次数提问: i play computer games three times a week .

how many times do you play computer games ?

4,含有的how疑问词:

how 怎样how old 多大。

how many 多少(提问可数名词的量)how much 多少(提问不可数名词的量)

how often 多久一次how far 多远 how long 多长时间。

二,words and phrases:

1,hardly 几乎不,表示否定含义。

2,time ▲ 时间,不可数 much time

▲ 次数,可数 four times

3, active 积极的形容词 activity 活动名词。

4, heath 健康,名词 healthy 健康的,形容词unhealthy 不健康的,形容词

注:有些形容词词前加un表示反义词 unhappy unimportant

5, try to do sth. 努力做某事try doing sth, 试着做某事。

6, 照看,照顾:look after = take care of

照看好: look after…well = take good care of

7, same 相同的 adj, 用时前加the we are in the same class.

different 不同的adjthe twins look different.

difference 不同点 n..可数名词 there are some differences between us .

8, although but 不能同时使用,because so 不能同时使用。

9,许多 :▲a lot of =lots of 修饰可数和不可数名词。

many 修饰可数名词 ▲ much 修饰不可数名词。

10,must 情态动词,后加动词原形,没有人称和数的变化。

注:must i clean the house now ? yes, you must. no, you needn’t.

11,the best student最好的学生注 best, good 的最高级,用时前加the

12,my eating habits 我的饮食习惯注: eating动名词作定语修饰名词。

13, eat less meat少吃肉注: less是 little 的比较级 ,修饰不可数名词。

14,make a list of列一个。。。的清单。

15, once a week每周一次。

16, the result of的结果。

17, hardly ever很少。

18, three or four times a month每月三四次。

19, no students没有学生

20, want (sb.)to do sth想让(某人)做某事。

21, be good for 对。。。有好处 be bad for 对。。。有坏处。

22, surf the internet网上冲浪,上网。

23, come home from school从学校回家。

24, keep in good health =keep healthy 保持健康。

25, get good grades取得好成绩。

26, study well 学得好study better 学得更好。

27, be the same as 和。。。相同 be different from 和。。。不同。

unit 2

一,grammars:

1, 你怎么啦? what’s the matter with you ? what’s wrong with you?

what’s your trouble?

回答: i h**e a headache / toothache / stomachache .

i h**e a sore back / leg /throat .

i h**e a cold / fever .

2, 提建议: you should lie down and rest.

you shouldn’t eat anything .

二,words and phrases:

1,foot 复数:feet tooth复数:teeth

2,休息:rest ▲ 动词 ▲ 名词:h**e a rest

3, 在。。。以前 ▲ ago 段 ago five hours ago

before before 点 begofe eight o’clock

4, ill, adj. 形容词 she is ill .

illness n. 名词 her illness

5, 有些动词加ed变为形容词 relaxed interested stressed

6, believe,think, 否定前移:当主语是第一人称时,从句若是否定,不否定从句,否定主句。

eg: we don’t think they can do it very well .

7, 包含good的短语:

be good at 擅长于。。。be weak in 在。。。方面比较差。

be good for 对。。。有益 be bad for 对。。。有害。

be good with 和某人相处得好。

8,get ▲ 得到 +名词 get a gift▲ 变得 +形容词 get warm

9, a few 一些,表肯定,修饰可数 a little 一些表肯定,修饰不可数。

few 几乎没有,表否定,修饰可数 little几句没有,表否定,修饰不可数。

10,现在:now= at the moment 11,listen to 听hear 听见,听说。

12,too many 太多,修饰可数too much 太多,修饰不可数。

much too 太,修饰形容词、副词

13, hot yang foods like beef 像牛肉一样的阳类食品。

注:like,介词,like beef 介词短语修饰前面名词food 做后置定语。

14,作主语:名词,代词,如果动词作主语,变成动名词(加ing)

15, people (who are too stressed out and angry) 容易紧张和生气的人。

注:who… 是定语从句,修饰前边名词people.

16, it’s adj. for sb. to do sth. 做某事对某人说是。。。的。

it’s hard for him to learn english well . 学好英语对他是很困难的。

17,get tired 变累be tired 累的。

18,保持健康 stay healthy = keep healthy stay in good heath = keep in good health

19,i’m sorry to hear that…. 听到。。。我感到很难过。

20,hot tea with honey 有蜂蜜的热茶注:with,有的,介词修饰名词后置

eg: a house with a small garden a girl with long hair

21, maybe 副词,位于be 后动词前或句首,作状语。(不影响句子结构) maybe he is a student.

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