八年级英语第二单元SectionA知识点整理

八年级英语第二单元Section A 知识点归纳：

1.help with housework 帮助做家务

Eg: I often help with housework at home on weekends .

拓展：help sb with sth.=help sb (to ) do sth 帮助某人做某事 Eg : I often help him ( to) learn English .

EX:The girl always helps his brother ________________(clean) his room.

2. go shopping=do some shopping

Eg :I usually go shopping with my mother when I am free.

= I usually do some shopping when I am free.

3.on weekends（美国）= at weekends (英国用法)在周末，通常作为时间状语放在句首或句尾

Eg: On weekends I usually go to the mountains.

= I usually go to the mountains at weekends .

4. What/How about doing sth ? 做某事怎么样？通常表示提建议或询问对方的情形练习： It’s sunny today, what about ____________(play) tennis?

5. be free =have time 有空

拓展：be busy with sth=be busy doing sth 忙于做某事 Eg :On weekdays I am always busy with my homework.=On weekdays I am always busy doing my homework.

6. use the Internet= surf the Internet 上网

拓展： on the Internet 在网上

use sth to do sth 用某物做某事 Eg:We use dictionaries to look up new words.

7. have dance lessons=take dance lessons 上舞蹈课

拓展： give sb a lesson 给某人上一节课/给某人一个教训

8. be full of ……充满……, 装满……..Eg :The schoolbag is full of apples. 书包里装满了苹果。拓展：full ,饱的 I am full. 我吃饱了。

9. 辨析：sometime, sometimes, some time , some times

Sometimes= at times 有时，用how often 提问 Eg :Sometimes I get to school late.

Sometime （将来的）某个时候，提问用when,常与将来时态连用 Eg: I will go to Shanghai sometime next month..

Some time 一段时间，常与for 连用，用how long 提问 Eg: I will stay at school for some time.

Some times 几次。Time 作可数名词时意思是“次数”

Eg: I exercise some times every week.

10.辨析：maybe 与may be

Maybe 副词“也许，大概”，一般放在be 动词之后，行为动词之前,或放在句首Eg: Tom is maybe at home.=Maybe Tom is at home .

May be “可能是”，为“情态动词+be动词”结构 Eg:Tom may be at home .

11. at least 至少， at most 至多stay up (late ) 熬夜go online 去上网swing dance 摇摆舞in one’s free time在某人空闲的时候go to the dentist=see the dentist 去看牙医

12.How come ?怎么会？可单独使用，也可相当于疑问词w h y,但how come 开头的特殊疑问句使用的仍然是陈述句语序Eg: How come his brother didn’t come to school today ?=Why didn’t hi s brother come to school today ?

13.What’s your favorite program?=What program do you like best ?你最喜欢的节目是什么？句型What’s your favorite….?=What … do you like best ?

Section B知识点归纳：

1. want sb to do sth 想让某人做某事，否定形式为 want sb not to do sth 不想让某人做某事Eg: My parents want me to study hard all the time . Our teachers want us not to play computer games .

拓展(1)want to do sth 想要做某事(2) want sth 想要某物

2.b e g o o d f o r对…….有益 E g:S wi m mi n g i s g o o d f o r o u r h e a l t h.

拓展be bad for………有害Eg: Reading in the sun is bad for our eyes.

3.ask sb about sth 询问某人关于某事Eg: My father always asks me about my study.

拓展：(1) ask sb to do sth 要求（邀请）某人做某事 (2) ask sb not to do sth 要求某人不要做某事

4. Here 位于句首要使用倒装

（1）Here +谓语+主语（此时主语为名词）Eg: Here is your milk.

(2) Here +主语（此时主语为人称代词,需用部分倒装）+谓语 Eg: Here it is .

5 . 基数词+percent of ……百分之……..,作主语时谓语动词与of 之后的名词一致

E g:Tw e n t y p e r c e n t o f t h e s t u d e n t s l i k e p l a y i n g b a s k e t b a l l.(谓语动词like 与students 一致)

Three percent of the water is the fresh water .(谓语动词is 与water 一致)

6. not……at all 一点也不，根本不，not与谓语动词放在一起，at all 放在句尾 Eg: I don’t l i k e ma t h a t a l l. He isn’t at s ch o o l at all.

拓展：N o t a t all.=You are welcome .不用谢，没关系

7.although=though 虽然，尽管，连词。but 为但是，英语中两者不能同时使用E g:A l t h o u g h h e w a s i l l,h e w e n t t o s c h o o l o n t i m e.

=H e w a s i l l,b u t h e w e n t t o school on time .

8.（1）be surprised at…….对…..感到惊讶(2) be surprised to do 吃惊的做某事

(3) in surprise 吃惊地，放在句尾Eg :He looked at me in surprise.

9. through, across ,past 的区别：（1）through ，以、凭借、穿过。通常是

指从立体的空间里通过，如zoo,park等。

Eg: He usually walks through a park on his way to school. (2)acr o s s,穿过，表示从物体的表面通过，如bridge ,road 等Eg:Walk across the bridge ,you can see a hospital. (3) past 只从物体的面前经过Eg: Go past the bank,you will see the bookstore.

10.spend 的用法(1) spend time/money on sth 在…..上花费时间或金钱

Eg:I always spend much t i m e o n m y h o m e w o r k o n s c h o o l n i g h t s.

(2) spend time /money (in) doing sth 花费时间或金钱做某事

Eg: I s pent three yuan ( in) buying the r u l e r .

(3)s p e n d t i me w i t h s b花费时间和某人在一起

Eg: I en j o y s p e n d i n g t i me wi t h my family on weekends.

11. afraid 害怕的（1）be afraid to do sth Eg:I’m afraid to travel by bus.

(2 ) be afraid of sth/sb 害怕某物/某人Eg: She is afraid of big dogs.

(3 )be afraid of doing sth 害怕做某事 Eg: Don’t be afraid of asking questions.

(4) be afraid +宾语从句，我恐怕…Eg: I’m afraid I can’t go shopping with you .

19.more than 多于 less than 少于