Unit4 Helping out 语法、写作篇-2026年春八年级英语下册寒假预习衔接讲义（外研版新教材）

2026年春八年级英语下册寒假预习衔接讲义

Unit4 Helping out 语法、写作篇

一． 情态动词may/might表示可能性

may/might表示将要发生或正在发生的可能性。此时,might不是may的过去式,它所表示的可能性比may所表示的可能性(现在或将来的可能性)小一些。may不用于表示是否可能的疑问句。

He may not know the answer．他可能不知道答案。

Mike might phone． If he does, could you ask him to ring later?Mike或许会打电话。如果他打电话,你能否让他晚点再打过来?

注意 表示“可能”的常见词possible、possibly、probably、maybe等

二． 情态动词must、can、could表示推测

You must be tired after the long work． 长时间工作之后,你一定累了。

Can/Could this be true? 这有可能是真的吗?

It can’t be David because he has gone to Beijing． 不可能是David,因为他去北京了。

随堂训练

一．单项选择

1．—Have you decided where to go for your winter vacation?

—Not yet, but we ________ go to Harbin． It’s a good place for vacation．

A．can’t                 B．mustn’t                  C．should                    D．may

2．—John isn’t at school today． Do you know why?

—He ________ have a bad cold, but I’m not sure about it．

A．may                  B．must                      C．will                        D．should

3．—I’m planning to have a trip to Hong Kong for the winter holiday． What about you?

—That’s great! We ________ go to my father’s hometown but we haven’t decided yet．

A．may                  B．must                      C．should                    D．need

4．—Why is Daniel so happy today?

—He ______ win the writing competition． Look at the prize in his hand．

A．may                  B．can                        C．must                      D．should

5．—Can you arrive on time for tonight’s meeting?

—I’m not sure． The train ________ be late．

A．must                 B．can                        C．may                       D．should

6． A hard-working man _______ be a successful man, but a successful man _______ be a hard-working man．

A．may not; can      B．can’t; may              C．may not; must         D．can’t; should

7．—What is your brother John doing?

—I’m not sure． He ________ be studying in the school library．

A．must                 B．might                     C．need                       D．would

8．—Mom, there is a beautiful box on the table． What’s in it?

—I’m not sure． It ________ be a gift from your brother．

A．must                 B．might                     C．can                        D．will

9．—The winter holiday is coming． Where are you going for a trip?

—I ______ go to Harbin, but I’m not sure．

A．might                B．must                      C．need                       D．would

10．—Is there an action movie on show in Town Cinema tonight?

—There ______ be one． But you’d better check on the app to make sure．

A．must                B．will                       C．can                        D．might

11．—The paper cutting is pretty lively． Who made it?

—It _________ be Amy． None of us except her is able to do it．

A．would              B．can                        C．need                       D．must

12．—Whose is the beautiful handbag on the table?

—It ________ be Holly’s． Her name is on it．

A．must                B．can                        C．should                    D．would

13．—You ________ be excited． You won the first prize in the dancing competition and you danced with your idol．

—Yes． It’s unbelievable．

A．need                B．have to                   C．must                      D．can’t

14．—Whose book is it?

—It ________ be David’s, because his name is on it．

A．might              B．must                      C．can’t                      D．needn’t

15．— Who is knocking at the door?

— It ________ be Tom． He said he would come at 3 p．m．

A．must                B．may                       C．can’t                      D．need

16．—Someone is knocking on the door． Who is it?

—It ________ be Jenny． She always brings the key with her．

A．may                 B．can’t                      C．must                      D．needn’t

17．—I think the souvenir (纪念品) is made in France． I like it so much!

—It ________ be from foreign countries． Look! It says “Made in China”．

A．must                B．mustn’t                  C．can’t                      D．could

18．—Look! The man over there is wearing a strange hat． Is he Mr． Smith?

—It ________ be him． Mr． Smith has gone to Beijing on business and he won’t be back until next week．

A．mustn’t            B．can’t                      C．needn’t                   D．shouldn’t

19．—Is this bike Lucy’s?

—Well, it ________ be Lucy’s． Hers is red, but it is blue．

A．can’t                B．must                      C．should                    D．needn’t

20．—I’m feeling bad because I didn’t do well in the running race．

—That’s OK． You _______ win every time．

A．can                  B．may                       C．can’t                      D．mustn’t

21．—What’s that smell?

—It ________ be something burning, but I’m not sure．

A．could               B．can’t                      C．should                    D．must

22． You ________ drop him and hurt him even more, so don’t move him．

A．could               B．should                    C．must                      D．need

23．— Where is Linda?

— I’m not sure． She ________ in the school library．

A．could be           B．must be                  C．can’t be                  D．will be

24．— I’ve taken a white jacket by mistake．

— It   be Gina’s． She sometimes wears white．

A．must                B．should                    C．need                       D．could

25．—Lucy, I’ve signed for the box． What’s in it?

—I’m not sure． It ___________ be a dress．

A．need                B．must                      C．could                     D．will

二．语法填空

阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

Can you imagine traveling around the world but not taking any planes? Torbjorn Pedersen, a Danish traveler, spent nearly 10 years visiting every country     1     taking any planes．

In 2013, he read an article about someone that had visited all the countries． Mr Pedersen realized he could set a record by doing something similar． He made a few     2     (rule): no flying, no visiting home． He hoped that he could live on about $20 a day and spend at least 24 hours     3     (stay) in every country．

The first part of his trip was pretty easy and he traveled     4     (happy)． But a she moved on, things began to get much     5     (hard)． Once he was in a dangerous situation and though he might lose his life．    6     he also had many good experiences． He got a lot of help from people all over the world,     7     he didn’t give upon the halfway． “You might have to try 1,000 closed doors,” he said, “but there is always     8     open door somewhere． Never, ever give up and always believe in     9     (you)．”

Finally, in May 2023, Mr． Pedersen arrived in Maldives, the last country on his list． In July, Mr． Pedersen     10     (return) to his country． Now, Mr． Pedersen is enjoying his quiet time to think about his trip． After that, he plans to write a book and share what he learned in his travels around the world．

写作精讲

本单元的话题是“帮助他人”,要求学生根据所给的提示内容介绍自己或他人帮助别人或动物的经历和感受。该话题下常见的写作体裁是记叙文,通常涉及的细分话题有:①当志愿者帮助他人或动物的经历;②同学之间的互助故事;③发生在你身边的令人感动的其他助人或帮助动物的故事。

写作实例

假如你是李华,作为一名志愿者,你参加了你家附近养老院的志愿者活动。请根据以下提示写出你的经历和感受。

要点:(1)你经常去一家养老院打扫卫生,想办法让老人开心;(2)上周六,有位王奶奶因为吃太多糖而牙疼,你送王奶奶去医院看病;(3)王奶奶感谢你的帮助,并送给了你一本书作为礼物;(4)表达你的感受。

写作要求:(1)包括以上要点,可适当发挥想象;(2)80—100词。短文开头已给出,不计入总词数。

My name is Li Hua． In my free time, I often work as a volunteer．

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审题指导

1．体裁:记叙文。    2．时态:以一般过去时为主。    3．人称:第一人称和第三人称。

4．必备词句:

（1）old people’s home养老院;

（2）in order to为的是,以便;

（3）try to do sth． 尽力做某事;

（4）as usual和平常一样;

（5）have a toothache牙痛;

（6）decide to do sth． 决定做某事;

（7）return to回到,返回;

（8）thank sb． for sth． 因某事感谢某人;

（9）take an active part in积极参加;

（10）care for照顾;

（11）voluntary worker志愿工作者

（12）chat with sb．和某人聊天

（13）volunteer to do sth．自愿做某事

（14）voluntary work志愿工作

（15）treat sb． with respect尊重某人

（16）set a good example to sb． 给某人树立一个好的榜样

（17）I think all of us should take an active part in voluntary work because it is meaningful． 我认为我们所有人都应该积极参与志愿工作,因为它是有意义的。

（18）Volunteering means using some of your free time, your energy or your talent to help others．当志愿者意味着用一些你的空闲时间、你的精力或你的才能去帮助他人。

（19）Volunteering is never difficult． There is always a group for you． Just find the right group to join!做志愿者从来都不难,总有一个适合你的团体。找到合适的团体加入吧!

谋篇布局

优秀范文

My name is Li Hua． In my free time, I often work as a volunteer． I often go to an old people’s home in order to help them clean up and try to make them happy．

Last Saturday I went to the old people’s home as usual． Granny Wang had a toothache because she ate too many candies． When I knew about her trouble, I decided to take her to the nearest hospital． After a doctor gave her some medicine, she got better． After returning to the old people’s home, she thanked me for my help and gave me a book as a present．

I think all of us should take an active part in voluntary work because it is meaningful． We should also learn to care for the old．

随堂训练

（1）

假如你是李明,上周六,你和志愿者俱乐部的几个朋友去了你们城市的养老院。请你根据下面的时间轴写一篇英语短文,介绍一下你们参加这次活动的经历,并表达你的感受。

要求:1．必须包括时间轴中的所有要点,可适当增加细节,以使行文连贯; 2．词数80左右(开头已给出,不计入总词数)。

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（2）

为了培养学生的社会责任感,弘扬志愿精神,学校鼓励学生积极参与社区志愿服务。假如你是李华,上个周末你和同学去社区的养老院开展了一次志愿服务活动。请你以“A meaningful volunteer event”为题,为校报写一篇英文报道。

内容包括:

1．活动的时间和地点;

2．活动内容(打扫卫生、陪老人聊天、表演节目等);

3．你的感受。

注意:

1．词数80左右;

2．可适当增加细节,以使行文连贯;

3．不得出现真实的人名、校名等信息。

参考词汇:养老院old people’s home

A meaningful volunteer event

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参考答案

一．单项选择

1． D

【详解】句意：——你决定去哪里度寒假了吗？——还没有，我们可能去哈尔滨。这是一个度假的好地方。

考查动词辨析。can’t不能；mustn’t禁止；should应该；may可能。根据“Not yet, but we…go to Harbin．”可知，说话者表达一种未确定的可能性，而非能力、禁止或建议。故选D。

2． A

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