Unit4单元知识点归纳总结及配套练习人教版英语八年级下册

Unit4 Why don’t you talk to your parent？

Ⅰ. Revision(复习)

Ⅱ. Presentation(重点，难点，考点，热点呈现)

1. Why don’t you do…?

【解析】Why don’t you do…?是常见的提建议的句型，该句型还可以用来发出礼貌的邀请。

同样表示征求对方意见的句型：

①What about doing…? / How about doing…?

②Would you like to do sth…?

③Let’s do sth.

④You’d better do/ not do sth.

【做一做】

1. ---Why not ________(wear) a hat? ----Good idea.

2. ---How about ___________(visit) our teacher? -----That sounds good.

3. ---Let’s __________(take) the dog for a walk. ----Sorry, I can’t.

4. Would you mind my __________(open) the door? ----Of course not.

5. Would you like ____________(come) to my party? -----I’d love to, but…

1. ---Tomorrow will be sunny. How about having a picnic in the park?

---_________________ But I have to prepare for tomorrow’s exam.

A. I’d love. B. I’d love to. C. That’s right.

2. --- A new 3D movie is on. Shall we go and see it this weekend? --- ____! What’s it?

A. I must be going now B. You are right C. Why not D. My pleasure

3. ---Look! It’s raining heavily. ____ take a raincoat with you? ---Well, I’ll take one right now.

A. Why not B. Why don’t C. Would you mind D. Would you like

4. A: Would you like to dance with me? B: . I have too much homework.

A. Sorry, I can’t. B. Of course not. C. That’s OK. D. I’d like to.

2. allow

【解析】allow 及物动词,意为 “允许”。用法:__________________允许某人做某事。

allow 用法：___________允许某事，例如： We don’t allow such a thing.

______________________ 允许做某事。 例如： We don’t allow smoking in our house.

【做一做】

1. 我的父母不允许我上学的晚上上网。My parents don’t allow me ____________ on weekdays.

2.他们不允在这条街上停车。 They shouldn’t allow _______________ in this street.

3. look through

【解析】look through 意为“翻阅，浏览”，后直接跟宾语。例如：

My brother is looking through the newspaper to find a better job.

与look相关的短语：

__________________ 照顾，照看 ___________ 看…… _____________ 看起来像

__________________ 寻找 _____________当心 ____________在字典等中）查找

【做一做】

1. --- Would you please ____ the paper for me and see if there are any mistakes?

--- Of course I will.

A. look around B. look through C. look up D. look into

2. —Peter, what will you do if your parents go out? —They ask me to _______ myself. A．look after B．look up C．look for D．look through

3. —I don’t know the new word. —It doesn’t matter, you can ________ in the dictionary.

A. look up it B. look it up C. look for it D. look it for

4. instead

【解析】instead 副词，反而、代替位于句子的开头时,多用逗号与句子的主体部分隔开;位于句子的结尾时不用逗号与句子的主体部分隔开。例如：

Jack didn’t have noodles for lunch. Instead, he had rice and fish. Ann said nothing. She began to cry instead.

instead of 短语介词，代替，而不是。在句中的位置比较灵活，其后需接被代替的内容作宾语，其宾语多由名词、代词、动词ing形式以及介词短语等充当。例如：

【做一做】用instead或instead of填空

1. Dave went fishing _______________going skating.

2. My brother isn’t good at math. __________, he is good at English.

3. I like reading in the library ____________in the classroom.

4. Yesterday John ____________ Mr. Zhang gave us a talk on American history.

5. Dave went cycling_______________going skating.

6. My brother isn't good at math.__________,he is good at English.

7. Mr. Zhang likes reading newspapers___________books.

8. l like reading in the library____________in the classroom.

9. Yesterday John____________Mr. Zhang gave us talk on American history.

5. not …until

【解析】until表示动作、状态的持续，强调“一直到……为止”，或强调某个动作或状态一直持续到另一个动作或状态出现之前。常与表示延续性动作的动词连用。例如：

I waited until three o’clock, but he didn’t come.

not … until表示“到……为止；直到……才”，常与表示瞬间性动作的动词连用。

如： His father didn’t come back home until 23:00.

【做一做】

1. We didn’t start our discussion _____ everybody arrived.

A. since B. if C. while D. until

2. —Mom, shall we have supper now?

—Oh, we won’t have supper ______ your dad comes back.

A. until B. since C. while D. after

3. Last night Dad and Mum didn't come back home _____ I finished my homework.

A. while B. if C. until D. as

4. —Tom, you look tired this morning. What’s wrong?

—I was so busy that I didn’t go to bed _____ 12 o’clock last night.

A. until B. when C. though D. unless

6. although

【解析】although意为“尽管”，较正式，语气强，用来引导让步状语从句。

although引导的从句放在主句前后均可，有时还可放在句中。例如：

He often helps me with my English although he is quite busy.

Although Betty was ill, she came to school yesterday.

although引导的从句不能与but, however连用，但可与yet, still连用。

【做一做】

1. Usually, we don’t know how important something is ______ we lose it.

A. or B. until C. as soon as D. after

2. _____ they are very tired, they feel happy because they’ve finally finished their homework.