新人教版英语八年级下册unit重点讲解及练习题

〔1〕表示过去发生或已经完成的动作对现在造成的影响或结果。—It’s so dark. 太黑了。

—Someone has turned off the light. 有人把灯关上了。 〔2〕表示从过去某一时间开始并一直延续到现在的动作或状态。常与since+过去的时间点，for+一段时间，so far等时间状语连用。I have lived here for ten years.

我已经住在这里10年了。〔从10年前开始，延续到现在还住这儿〕

I have lived here since 202X. 自从202X年我就住在这儿。〔从202X年开始，延续到现在还住这儿〕 2) 现在完成时的构成及句式转换： 助动词 have/has + 过去分词

①I have finished my homework. (肯定句) ②I have not finished my homework. 〔否认句〕 ③—Have you finished your homework?

—Yes, I have. / No, I haven’t, 〔一般疑问句及肯定、否认答复〕现在完成时的标志：

①常与just, already, yet, ever, never, before, so far 等连用，强调动作的完成，不强调动作的延续。 Have you ever been to Japan? I have just finished my homework.

②for + 时间段；since + 过去的时间点；since + 段时间 ago；since + 一般过去时的句子。

They have known each other for five years. Since he was a child, he has lived in England.

do __________ — ____________ go__________ — ___________ read ______ — ______ see _________ —______know____________ — _____________ eat _______ — _________ forget _________ — _________write________-______ 一、依据句意或汉语提示写词。

1. We often see people take out ______ and shoot others in action movies.

2. Li Ming went to Paris three years ago, now he can speak _________ very well.

3. I think dictionaries and Internet are good _______(工具) for us to study English.

4. Look, Tim is walking t_______ the library. He wants to borrow some books.

5. —Would you like something e_____ to eat? —No, thanks. I’m full.

【课后稳固】

一、用括号内所给单词适当形式填空 (每题4分,共20分) 1. Judy has already _______ (finish) reading Little Women.

2. Tom and Mike have already _______ (decide) to learn Chinese on Internet.

3. Have you ________ (read) Alice in Wonderland yet? 4. Robinson ________ (have) already built a house on the island. 5. It often ________ (snow) in North China in winter.

yet / already already 通常用于肯定句中，意为“已经〞，位于

行为动词之前，be动词、助动词之后。 例如：

We have already cleaned the classroom. 我们已经清扫了教室。 yet用于疑问句中表示“已经〞；用于否认句中表示“还〔没〕〞。 例如： —Has he found his watch yet? —No, not yet. 单项选择：— Have you done most of your jobs? — Not _________. I will do them in a minute. A. neither B. never C. already D. yet

Steve, have you decided yet which book to write about for English class? 斯蒂夫，你已经决定英语课写哪本书了吗？

which book to write about 意为“写哪一本书〞，此处为“疑问词+动词不定式〞结构，在句中作宾语。

I can’t decide when to start. 我不能决定何时动身。

I am thinking about how to deal with the problem. 我正在考虑怎样处理这个问题。

[拓展] 常用于此结构的疑问词还包含疑问代词who, whom, what 及疑问副词when, where 和 how。

He taught me how to pronounce it. 他教我如何发音。 I didn’t decide where to live. 我没有决定住哪儿。

—Which dress do you like best, Madam?—Sorry, I can’t decide __________ now. A. to buy which one B. buy which one

C. which one to buy D. which I should buy it

It was really good, so I couldn’t put it down.

put… down 意为“记下；放下〞，为“动词+副词〞型短语，宾语假设为代词，应放在put 与 down 中间。

________ your name on the paper and you can get a magazine.

A. Cut down B. Look down C. Turn down D. Put down one… the other…, some… the others 的辨析

1. one… the other… 为固定搭配，用于两者之间，意为“一个……另一个……〞。 例如：

He has two sons. One is a doctor, the other is a student.

他有两个儿子。一个是医生，另一个是学生。

2. some… the others…用于三者或三者以上，意为“一些……其余的……〞。 例如：

Boys are on the playground. Some are playing basketball, the others are playing football. 男孩们都在操场上，一些正打篮球，其余的正在踢足球。

〕Lily and her sister look the same. I can’t tell one from ____. A. other B. another C. the other D. others

词义辨析: success 、succeed、 successful和 successfully的辨析

①success：名词，意为“成功〞

②succeed：不及物动词，后常接in doing sth.。

succeed in sth. “在某事上取得成功〞； succeed in doing sth. “成功做某事〞。

③successful: 形容词，意为“成功的〞。 ④successfully: 副词，意为“成功地〞。

选词填空：succeeded, successful, successfully 1. She ___________ in passing the exam. 她成功的通过了考试。 2. The performance was ____________. 演出很成功。

3. I finished my training ____________. 我成功地完成了训练。 2.语法聚焦： The number of records he has sold...

他已售出的唱片的数量……

the number of 意为“……的数量〞，作主语时，谓语动词要用单数。

The number of visitors to Hong Kong has now increased. 现在去X参观的人数已增加。

试一试：辨析 the number of 与 a number of

In our school library there ______ a number of books on science, and in these years the number of them ______ growing larger and larger. A. are; is B. is; are C. have; are D. has; is belong to...属干……，为……所拥有

belong to...为动词短语，意为\"属于••••••，为••••••所拥有\"。其中to是介词，后接名词或人称代词的宾格形式，但不能跟物主代词或全部格。• This ring belongs to my mother.这戒指是我妈妈的。 • These books belong to me.这些书是属于我。注意belong to可以与物主代词或全部格进行句式互换。

This house belongs to us. = This house is ours这座房子是我们的。 This CD belongs to It isn't

A.Tom; Sam B.Tom; Sam'sC. Tom's ； Sam's D. Tom's ； Sam 一、依据汉语或首字母提示写词。〔5分〕

1．We Chinese should love our motherland〔祖国〕f____________. 2．While she was studying a________, she heard a song full of feelings about returning home.

3．Many songs these days are just about m_________ life in the US, such as the importance of money and s_________.

4．The poet〔诗人〕loves the b________ of the nature and the country. 5. We often i____________ ourselves to others at the beginning of the term.〔学期〕

二、用所给单词正确形式填空。〔5分〕

________ and they have concerts all over the world every year. 〔三〕单项选择。〔每题2分，共20分〕

( ) 1. —I’ve just got a new MP4.—Where ____ you _______ it?

—In a shopping mall near here.A. have; bought B. did;

buy C. are; bought D. were; getting

( ) 2. —Will you go and see the movie Net Mother with me?

—Thank you. But I _______ it already.

A. saw B. have seen C. see D. will see ( ) 3. I began watching here an hour ago, but now nothing ______ yet.

A. happens B. will happen C. happened D. has happened ( ) 4. It’s sometimes hard to tell one twin from ______. A. another B. some other C. other D. the other ( ) 5. —Look! A book is on the floor. Whose is it?

—It ________ be Rick’s. It has his name on it.

A. mustn’t B. can’t C. must D. need ( ) 6. —Hello, may I speak to Mr. Smith?

—Sorry, he isn’t in. He _______ the office.

A. has been to B. has gone to C. has been away D. has left ( ) 7.—A number of volunteers ______ willing to teach in China’s rural areas.

—Yes, the number ______ getting bigger and bigger.

A. is; is B. are; is C. is; are D. are; are ( ) 8. Her son _____ coke, but now he ______ milk.

A. used to drink; is used to drinking B. used to drinking; drinks C. is used to drinking; used to drink D. is used to drink; is drinking

( ) 9. He took up my cell phone and made a long distance call as

if the phone _____him

C. was belonged to D. had been belonged to ( ) 10. ______ have you lived with your grandparents? —About three years.

A. Hong long B. How many C. How much D. How often A. belonged to B. was belonging to

beautiful south France successful listen

1. Though she is a Chinese girl, she speaks _________ very well. 2. Taishan has given us the __________ of nature. 3. Failure is the mother of ___________.

4. He used __________ to pop music but now he likes rock music. 5. Guangdong lies in the ___________ part of China.

〔一〕依据句意及首字母提示补全单词。〔每题2分，共10分〕 1) Exploration team found a lot of t_________ on this old island. 2) China’s science and t__________ is developing fast. 3) His son has studied a__________ for five years.

4) They live in one of the most m__________ cities in the world. 5) Diaoyu Islands b_________ to China forever.

〔二〕选择适宜的单词完成短文。〔每题2分，共10分〕 abroad, success, modern, records, introduce Today, we will _____ a famous pop singer to you. He is Steven Hom, a British young man. When he was 12, he had his first band with three friends at school. They soon had many fans. Most of them are middle school students. When Steven was 18, he went _________ to study music.

After Steven finished his study in the university, he set up his second hand-Magic Maker. This band mainly plays _______ music. They have sold over 50 million _______. Magic Maker is a big