八年级上册英语所有必考点总结
2019-12-18 14:26
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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.
The woman may be a teacher.
2. a few / few / a little / little
People can live to 100, but few people can live to 150.
There is little time left. I won’t catch the first bus.
Could you give me a little milk?
3. hard / hardly
hard作形容词，意为“困难的，艰苦的，硬的”;作副词，意为“努力地，猛烈地”。hardly为副词，意为“几乎不”。
The ground is too hard to dig.
I can hardly understand them.
It’s raining hard. The people can hardly go outside.
4. As for homework , most students do homework every day .
as for...意思是“至于;关于”，+名词、代词或动词的-ing形式(即动名词)。
如： As for him，I never want to see him here.
至于他，我永远不希望在这里见到。
As for the story，you'd better not believe it.
关于那故事，你最好不要相信。
5. That sounds interesting.
这是“主语+系动词+表语”结构的简单句。sound(听起来)，look(看起来)，smell(闻起来)，taste(尝起来)，feel(觉得)，seem(好象)，grow(变得),get(变得)等词在英语中可用作系动词，后跟形容词作表语。如：
It tastes good. 这味道好。
The music sounds very sweet. 这音乐听起来很入耳。
The smoke grew heavier and heavier. 烟雾变得越来越浓了。
6. percent 名词，意为“百分之……”
百分数的表示方法：基数+ percent (不用复数形式)，percent做主语时，谓语动词的数要根据其后面的名词来确定。
50%：fifty percent 百分之五十
Fifty percent of the apples are bad. 50%的苹果都坏了。
Twenty percent of the meat is in the fridge. 20%的肉都在冰箱
