八年级上学期英语所有必考知识点大汇总

八年级上学期英语所有必考知识点大汇总

Unit1 Where did you go on vacation?

【重点语法】

不定代词：不指名代替任何特定名词或形容词的代词叫做不定代词。用法注意：

1. some 和any +可数名/不可数名。

some 多用于肯定句，any多用于否定句、疑问句和条件从句。有些问句中用some,不用any, 问话者希望得到对方肯定回答。

2. 由some, any, no, every 与body, one, thing构成的复合不定代词作主语时，其谓语动词用三单。

3. 不定代词若有定语修饰，该定语要置于其后：如：something interesting 【重点短语】

1. buy sth for ab./ buy sb. sth 为某人买某物

2. taste + adj. 尝起来……

3. nothing...but + V.(原形) 除了……之外什么都没有

4. seem + (to be) + adj 看起来

5. arrive in + 大地方/ arrive at + 小地方到达某地

6. decide to do sth. 决定做某事

7. try doing sth. 尝试做某事/ try to do sth. 尽力做某事

8. enjoy doing sth. 喜欢做某事

9. want to do sth. 想去做某事

10. start doing sth. 开始做某事=begin doing sth.

11. stop doing sth. 停止做某事区分：stop to do sth. 停下来去做某事

12. dislike doing sth. 不喜欢做某事

14. so + adj + that + 从句如此……以至于……

16. tell sb. (not) to do sth. 告诉某人（不要）做某事

17. keep doing sth. 继续做某事

18. forget to do sth. 忘记去做某事/ forget doing sth 忘记做过某事【词语辨析】

1. take a photo/ take photos 拍照

quite a few+名词复数“许多…”

2. seem + 形容词看起来…... You seem happy today.

seem + to do sth. 似乎/好像做某事 I seem to have a cold

It seems + 从句似乎..…. It seems that no one believe you.

seem like ... 好像，似乎….. It seems like a good idea.

3. arrive in +大地点= get to= reach+地点名“到达......”

arrive at +小地点

（注：若后跟地点副词here/there/home, 介词需省略，如：arrive here; get home）

4. feel like sth 感觉像…

feel doing sth. 想要做某事

5. wonder（想知道）+疑问词（who, what, why)引导的从句。

6. because of +名/代/V-ing

because+从句

He can’t take a walk because of the rain.

I don’t buy the shirt because it was too expensive.

7. enough +名词足够的…...

形容词/副词+enough

Unit2 How often do you exercise?

【重点语法】

1. 频率副词: always, usually, often, sometimes, never

频率副词在句中通常放在实义动词之前, be动词或助动词之后。常用于一般现在时态中。

2.“次数”的表达方法

一次 once，两次twice，三次或三次以上：基数词+ times, 如：three times, five times,

3. how often“多久一次”问频率，回答常含有频率词组或短语。

常见的how疑问词：

1）How soon 多久（以后）

—How soon will he be back?他多久能回来？

—He will be back in a month. 他一个月后能回来。

2）how long “多久”

—How long did it take you to clean the house? 你打扫房子用了多久？—It took me half an hour to clean the house. 我打扫这房子用了半小时。3）How many+名复

How much+不可名

“多少”问数量（how much 还可问价格）

【重点短语】

1. go to the movies 去看电影

2. look after = take care of 照顾

3. surf the internet 上网

4. healthy lifestyle 健康的生活方式

5. go skate boarding 去划板

6. keep healthy=stay healthy 保持健康

7. eating habits 饮食习惯

8. take more exercise 做更多的运动

9. the same as 与什么相同

10. be different from 不同

11. once a month一月一次

12. twice a week一周两次

13.make a difference to 对......有影响/作用

14. most of the students=most students

15. shop=go shopping=do some shopping 购物

16. be good for 对......有益

17. be bad for 对......有害

18. come home from school放学回家

19. of course = certainly = sure 当然

20. get good grades 取得好成绩

21. keep/be in good health 保持健康

22. take a vacation 去度假

【词语辨析】

1. maybe / may be

maybe 是副词，意为“大概，可能，或许”，一般用于句首。May be 是情态动词，意为“可能是...，也许是...，大概是...”.

The baby is crying. Maybe she is hungry.