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九年级（全一册）
第21讲 Units 7~8
第21讲 Units 7~8
第五部分 九年级(全一册）
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九年级（全一册）
第21讲 Units 7~8 导图巧记忆
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 词 语 拓 展
1. safety n. 安全；安全性→ safe adj. 安全的
2. badly adv. 严重地；差；非常→ bad adj. 糟糕的；差的；坏的
3. educate v. 教育；教导→ education n. 教育→ educational adj. 有教
育意义的
4. manage v. 完成（困难的事）；应付（困难局面）→ manager n. 经
理；经营者
5. society n. 社会→ social adj. 社会的
6. choice n. 选择；挑选→ choose v. 选择；挑选
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 词 语 拓 展
7. valuable adj. 贵重的；很有用的；宝贵的→ value n. 价值； v. 重
视；珍视
8. noise n. 声音；噪声→ noisy adj. 嘈杂的
9. happening n. 事件；发生的事情（常指不寻常的） → happen v. 发
生
10. policeman n. 警察→ policemen n. 警察（复数）
11. wolf n. 狼→ wolves n. 狼（复数）
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 词 语 拓 展
12. sleepy adj. 困倦的；瞌睡的→ sleep n. 睡眠； v. 睡觉→ asleep adj.
睡着的
13. express v. 表示；表达→ expression n. 表示；表达；表情
14. historian n. 历史工作者→ history n. 历史→ historical adj. 历史的
15. leader n. 领导；领袖→ lead v. 引领；带路
16. medical adj. 医疗的；医学的→ medicine n. 医学；药
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 短 语
1. 获准做某事be allowed to do sth.
2. 后悔做某事regret doing sth.
3. 继续做某事continue to do sth.
4. 在……上花时间spend time on...
5. 避免接近keep...away from...
6. 回嘴talk back
7. 自己做决定make one’s own decision
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 短 语
8. 妨碍get in the way of
9. 结束end up
10. 对于……是认真的be serious about
11. 做选择make the choice
12. 追逐run after
13. 捡起pick up
14. 同时at the same time
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 短 语
15. 指出point out
16. 上升move up
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 句 型
1. —I don’t think sixteen-year-olds should be allowed to drive.
—I agree. They aren’t serious enough. （P49）
——我认为不应该允许16岁的青少年开车。
——我同意。他们不够谨慎。
2. I’m really excited about seeing the famous paintings by Picasso. （P50）
要去看毕加索的著名绘画作品，我感到非常兴奋。
3. I’m going to bring my new camera to take lots of photos！（P50）
我打算带我的新相机去拍许多照片！
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 句 型
4. Teenagers often think they should be allowed to practice their hobbies as
much as they want. （P54）
青少年经常认为应该允许他们尽可能多地按照他们所想的去练习他们
的爱好。
5. —Whose book is this?
—It must be Mary’s. J.K. Rowling is her favorite writer. （P57）
——这是谁的书？
——它一定是玛丽的。 J.K. 罗琳是她最喜欢的作家。
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 句 型
6. The noise-maker is having too much fun creating fear in the neighborhood.
（P59）
这位噪声制造者对其在小区引发的恐慌正乐在其中呢。
7. —Whose hair band is this?
—It could be Mei’s hair band. Or it might belong to Linda. They both have
long hair. （P60）
——这是谁的发带？
——它可能是梅的。或者它可能属于琳达。她们两人都留着长发。
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 句 型
8. —What did you see that night?
—I’m not sure, but it can’t be a dog. It was bigger. I think it might be a
bear or a wolf. （P60）
——那天晚上你看见了什么？
——我不确定，但它不可能是一只狗，它更大些。我认为它可能是一
只熊或一只狼。
9. The large stones were put together in a certain way. （P62）
这些巨石以某种特定的方式被摆放在一起。
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九年级（全一册）
第21讲 Units 7~8 知识大集结
u 重 点 句 型
10. And perhaps we might never know, but we do know they must have been
hard-working—and great planners. （P62）
或许我们可能永远不知道，但我们的确知道他们一定很勤奋——而
且是伟大的规划者。
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九年级（全一册）
第21讲 Units 7~8 考点全聚焦
考点1 含情态动词的被动语态句式。
（★2020·贺州）
肯定句：主语+情态动词+be+及物动词的过去分词. 例如：
The flowers should be watered every day. 这些花应该每天都浇水。
否定句：主语+情态动词+not+be+及物动词的过去分词. 例如：
Cars mustn’t be parked here. 小车禁止停在这里。
一般疑问句：情态动词+主语+be+及物动词的过去分词？ 例如：
Should the work be finished today? 这项工作应该在今天完成吗？
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九年级（全一册）
第21讲 Units 7~8 考点全聚焦
考点2 情态动词表示推测。
情态动词中的 must, can, could, may, might 都表示推测。其中 must
的可能性最大，can / could 次之，may / might 最小。
1. must 的用法。（★2020·河池）
（1）表示推测“可能性”时，意思是“一定，准是”，语气较肯
定，较有把握。例如：
He must be a teacher. 他一定是一名老师。
（2）must 表示推测只能用于肯定句。如果要表示“一定不，肯定
不”的意思时，应用 can’t。例如：
He must know the truth. 他肯定知道真相。（一定）
He can’t know the truth. 他肯定不知道真相。（一定不）
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九年级（全一册）
第21讲 Units 7~8 考点全聚焦
2. can / could 的用法。
（★2020·北部湾、2020·贺州、2019·河池）
（1）can 表示推测“可能性”时，往往用于否定句或疑问句中。
can’t 意为“一定不”，语气很肯定。 can 在疑问句中意思是“会，可
能”。 例如：
He can’t be at home. 他一定不在家。
It’s so late. Where can she have gone? 天晚了，她可能去哪儿了呢？
（2）could 可用于表示某事有可能发生或可能是事实。例如：
Don’t eat it. It could be poisonous. 不要吃它，可能有毒。
（3）could 还可以用于表示客气、委婉、礼貌的请求语气。例如：
Excuse me, could you tell me the way to the bus station? 打扰了，你能告
诉我去汽车站怎么走吗？
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九年级（全一册）
第21讲 Units 7~8 考点全聚焦
3. may 和 might 的用法。
（1）may, might 表示推测“可能性”时，意思是“可能，也许”，
语气没有 must 肯定。例如：
He may / might be American. 他可能是个美国人。
注意： might 不表示过去时态，只是语气上比 may 更委婉，表示的可
能性更小。
（2）may, might 表示推测时，可以用于否定句，意思是“可能不，
也许不”，但不用于疑问句。例如：
He may / might not be at home. 他也许不在家。
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九年级（全一册）
第21讲 Units 7~8 写作一点通
做文明少年，创文明城市
该主题的书面表达常以说明自己观点的方式来写，说明应该做什么和
不应该做什么，内容通常涉及助人为乐，遵守公共场所基本行为准则等。
写作框架
1. 根据写作材料的主题，提出“做文明少年，创文明城市”的话题；
2. 说明作为一名“文明少年”，应该或不应该做什么，为“创文明城
市”做贡献；
3. 阐明自己的观点，并提出希望或号召。
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九年级（全一册）
第21讲 Units 7~8 写作一点通
常用句型
1....is now making its effort to become a national civilized city.
2. Recently the activity,“Building Harmonious Society（建设和谐社会）
and Safe School”, has been on in...
3. The activity of being a good student and good citizen has been held in...
4. As students, we should do the following.
5. Let’s try our best to make it a civilized city.
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九年级（全一册）
第21讲 Units 7~8 写作一点通
参考范文
Since the activity of creating the civilized city and countryside started，all
the people in our city have made great efforts. Their good behavior can be seen
everywhere.
As junior students, we have also made some contributions to the civilized
city. For example，to protect our environment, we plant flowers and trees.
Also, for our own and others’ safety, we obey the traffic rules and never run
red lights. In addition, we no longer talk or laugh loudly in public. What’s
more, when on a bus, we actively give our seats to the people in need. Besides,
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九年级（全一册）
第21讲 Units 7~8 写作一点通
we have formed a good habit-throwing rubbish into a dustbin, never littering
anywhere. Furthermore, we are accustomed to queuing up for tickets or
something else.
All in all, we will try our best to do what we can to make ourselves and our
city more civilized.
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九年级（全一册）
第21讲 Units 7~8 备考练习
一、单项选择。
1. —I’m really excited about watching the dolphin show.
— I hope I can watch it again.
A. I don’t think so. B. Me, too.
C. I don’t agree. D. Of course not.
2. —Why is making a good first impression(印象) important?
—Because you’ll never get a second to do it again.
A. choice B. class
C. chance D. course
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九年级（全一册）
第21讲 Units 7~8 备考练习
3. Many students aren’t getting enough sleep at night, which means
they feeling sleepy during class.
A. take up B. end up
C. stand up D. catch up
4. A truck hit the back of a bus and about 15 people were hurt.
A. easily B. badly
C. quickly D. well
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九年级（全一册）
第21讲 Units 7~8 备考练习
5. The rich man has a(n) and beautiful painting and he is very proud of it.
A. ugly B. awful
C. terrible D. valuable
6. Good health habits may help to us developing a cold or flu.
A. prevent B. mind
C. regret D. try
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九年级（全一册）
第21讲 Units 7~8 备考练习
7. The researchers point that a lack (缺乏) of exercise is now a leading
cause of death.
A. at B. to
C. out D. with
8. Treat people kindly. Don’t harm .
A. nobody B. anybody
C. nothing D. anything
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九年级（全一册）
第21讲 Units 7~8 备考练习
9. I think those who don’t respect elderly people should .
A. punish B. punished
C. be punished D. is punished
10. It’s nearly 8:00 . Sam be at home at this moment.
A. must B. can
C. could D. need
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九年级（全一册）
第21讲 Units 7~8 备考练习
二、根据中文或首字母提示，完成单词。
1. We are not allowed to （吸烟） in public places.
2. Look! This is a （微小的）40-gram camera that can be fixed on
your glasses.
3. It’s a fine day. Let’s have a （野餐） in the park.
4. On the way home, Wang Wei helped a man （举起） the bag and
put it on the bike.
5. Mr. Read decided to call tech （支持） to help him solve the
problem.
smoke
tiny
picnic
lift
support
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九年级（全一册）
第21讲 Units 7~8 备考练习
6. In Miss Lin’s class, she always encourages her students to .
（表达） themselves as much as possible.
7. With the rising number of visitors, it took many hours to .
（进入） Peking University.
8. Children are looking forward to Christmas because they can r .
gifts.
9. Boys, don’t make so much n . Your father is sleeping.
10. I had to make a c between the two beautiful dresses.
express
enter
eceive
oise
hoice
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九年级（全一册）
第21讲 Units 7~8 备考练习
11. I think we will have more and more clean e in the future. Then
the pollution will die down.
12. The real p of traveling is to relax and embrace（拥抱） nature.
13. He did not a the meeting yesterday because he was ill.
14. When I feel unhappy, I want to c .
15. A p stopped the man and checked if he was drunken driving.
nergy
urpose
ttend
ry
oliceman
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九年级（全一册）
第21讲 Units 7~8 备考练习
三、根据句意，用括号内所给单词的正确形式填空。
1. Before you join the company, you will have to have a （medicine）
examination in the hospital.
2. I think teenagers should （allow） to choose their own clothes.
3. Traffic （safe） is important to everyone.
4. I would study abroad if I could because I want to study in a
different （educate） system.
5. The book is really exciting. No one will regret （read） it.
medical
be allowed
safety
educational
reading
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九年级（全一册）
第21讲 Units 7~8 备考练习
四、综合填空。
From your first library visit for story time, to your visits to study as a
college student, you spend a lot of time in libraries. But do you know how to
behave in the library? Why do people always whisper（耳语）? Here
1. some rules for you to learn and respect.
Your behavior in the library must be different from your behavior at home.
When you go to the library, you should turn off your phone or change it to
2. mode（模式）. Sounds from your 3. may disturb（打扰）
other people. If a call must be made, you should go to a quiet area or outdoors.
are
silent phone
silence drink be dirty you phone most low place treat
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九年级（全一册）
第21讲 Units 7~8 备考练习
Libraries are 4. for people to study. Therefore, you need to
speak in a 5. voice. If you want to discuss something with your study
group, find a “study room”. 6. college libraries have such study
rooms.
Don’t eat or 7. when you are in the library. On the one hand, the
noises you make may annoy others. On the other hand, the books can get
8. from food crumbs（碎屑）, which would make those who
borrow the books after you uncomfortable.
silence drink be dirty you phone most low place treat
places
low
Most
drink
dirty
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九年级（全一册）
第21讲 Units 7~8 备考练习
Remember this golden rule: always treat others the way you want to be
9. . Then you will enjoy 10. in the library.
silence drink be dirty you phone most low place treat
treated yourself
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