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九年级When was it invented 知识点总结&练习
一、核心短语归纳
1.run on electricity 靠电力运行
2.be used for… 被用来做……
3.think of/about 想出
4.With pleasure! 乐意效劳!
5.have a point 有道理
6.by accident 偶然;意外地
7.fall/drop into…掉进……
8.take place 发生;出现
9.without doubt 毫无疑问;的确
10.the nature of………的本质
11.divide…into…把……分成……
12.at the same time 同时
13.stop…from doing…阻止……做……
14.dream of 梦想;幻想;向往
15.not only…but also…不仅……而且……
16.look up to 钦佩；仰慕
17.achieve one's dream 实现某人的梦想
二、核心考点归纳
1.list
（1）list 作及物动词，意为“列表;列清单”。
（2）list 作名词，意为“名单;清单”。常见短语有：
make a list 列清单
a list of…一份……的清单
2.mention
mention 为及物动词，意为“提到;说到”，后接名词或从句作宾语。
可用“Don't mention it.”来回答感谢。
如：—Thank you very much. 非常感谢你。
—Don't mention it.不客气。
2.invent
invent为动词，意为“发明;创造”,主要通过想象、研究或劳动创造出前所未
有的东西,尤指科技上的发明创造。
【拓展】invention n.发明inventor n.发明者;创造者
4.辨析pleasure、pleased、please与pleasant
（1） pleasure n.表示“愉快;高兴”，多用于口语。
·with pleasure “非常愿意；乐意效劳”，是对别人请求的肯定答语。
·my pleasure “别客气；我很荣幸”，是对别人表示感谢的礼貌回答。
（2） pleased adj.意为“高兴的”，一般用作表语。
（3）please v.意为“使愉快”。
（4）pleasant adj.意为“令人高兴的;令人愉快的”。
5.by accident
（1）意为“偶然；意外地”，其同义词组为by chance,反义词组为on
purpose。
（2）accident n. 意外；（交通）事故→accidental adj. 意外的；偶然的
6.smell
smell作实义动词，意为“闻到；发出……气味”。作连系动词，意为“闻起
来”。其过去式、过去分词均为smelt。作名词，意为“气味”。
7.辨析 take place 与 happen
（1）take place意为“发生；出现”，通常用于计划、安排或人们积极参与
的事情,无被动语态。
（2）happen意为“（尤指偶然）发生；出现”，用于偶然发生的事件,也无
被动语态。
8.Canadian
Canadian作形容词，意为“加拿大的；加拿大人的”；作名词，意为“加拿大
人”。表示国家“加拿大”，用Canada。
9.achieve one's dream
意为“实现某人的梦想”，相当于make one's dream come true。achieve和
come true都可以表达“实现”的意思，前者主语通常是人，而后者主语通常
是梦想、愿望等。
10.divide
divide用作动词，意为“分开;分散”,指把整体划分成若干份,常与into搭配,意
为“把……分成……”。
11.not only…but also…
意为“不仅……而且……”，在句中连接并列成分。连接并列主语时，谓语
动词遵循“就近原则”，即与其最近的主语在人称和数上保持一致。
12.stop sb./sth.from doing sth.
意为“阻止某人/某物做某事”，同义短语有“keep/prevent…from doing sth.”。
单元重难点集训
考点一：pleasure的相关用法
（1） pleasure n. 意为“愉快;高兴”。
It's a pleasure. 不用谢。With pleasure. 愿意为您效劳。My pleasure. 我的
荣幸。
（2） pleased adj. 意为“高兴的”，一般用作表语。
（3）please v. 意为“使高兴;使愉快”。
（4）pleasant adj. 意为“令人高兴的;令人愉快的”。
考点二：doubt的相关用法
（1）doubt 作名词,意为“怀疑;不确定”。
without doubt 意为“毫无疑问;的确”,用于强调某个观点。
no doubt 意为“无疑;很可能”。
There is no doubt that…意为“毫无疑问……”。
（2）doubt 用作动词时,主句为肯定句时,其后通常接whether 或if引导的宾
语从句;主句为否定句或疑问句时其后通常接that引导的宾语从句。
考点三：not only…but also…
not only…but also…用于连接两个表示并列关系的成分，着重强调后者。
它的意思是“不仅……而且……”；其中的also常可省略。not only…but
also…连接两个主语时，谓语动词要与其最近的主语保持人称和数的一致。
考点四：辨析including、included与include
including prep. 包括……在内，后接名词或代词作宾语
·included adj. 包含的；包括在内的，常位于所修饰词之后
·include v. 包含；包括
补全对话
根据对话内容，从下面方框中选出恰当的句
子补全对话，有一个选项是多余的。
（Two students are talking about DeepSeek.）
A:Hi, Sam! 1.___
B:I'm reading an article about DeepSeek.
A:What's that
B:2.___
A:Who invented it
B:It was invented by a Chinese company.
A:Sounds interesting.3.___
B:It can do a lot of things, like answering questions, writing e-mails and
chatting （闲聊） with you.
A:Can I use it for my homework
B:4.___You'd better use it as a learning tool, not to cheat on your
homework.
A:Why
B:Because if we do so, we won't need to use our brains. Then we will
lose the ability to think and learn.
A:5.___The more we use it, the lazier our brains will be.
A.What are you doing
B.No, you shouldn't.
C.What can it do
D.How about you
E.It's a smart AI chatbot.
F.I think you are right.
完形填空
Umbrellas are common in our daily life. On rainy days, many people hold them to prevent the 6_____ But it's not easy to hold an umbrella if there is heavy rain and 7._______ wind. And it's harder to make a phone call or ride a bike 8.____ an umbrella in the hand. An American named Alan Kaufman and his company 9.________ ananbn6 years inventing a hands-free umbrella 10.________, they made it.
They called it Nubrella. Just touch a button （按钮）, and the
Nubrella will open 11._______ With the help of its “shoulder support （支持）”, the umbrella can rest on the user's 12.__________. So the user needn't hold the umbrella any more. He can walk with hands 13._____. even in the strong wind.
The hands-free umbrella is $59.94 each. People all around the world
like it very much. Because of this smart 14._____, they can use their phones to talk and send short messages in the rain now.15.______ in the rain under a Nubrella is really cool, isn't it
6.( ) A.snow B.heat C.rain
7.( ) A.tall B.strong C.short
8.( ) A.by B.without C.with
9.( ) A.spent B.took C.paid
10.( ) A.At first B.At last C.At the end of
11.( ) A.hardly B.easily C.differently
12.( ) A.feet B.legs C.shoulders
13.( ) A.busy B.free C.difficult
14.( ) A.invention B.magazine C.book
15.( ) A.Lying B.Flying C.Walking
阅读理解
Compass
The earliest compass was invented during the Warring States period.
It looked like a spoon on a plate, on which 24 directions were marked.
Due to magnetism, its handle （柄） would point south.
Seismograph
In Eastern Han Dynasty, Zhang Heng invented it to report earthquakes. When a quake took place, the ball inside the dragon mouth would drop into the mouth of the toad （蟾蜍） right under it. It was so smartly designed that only one dragon mouth would open while the rest seven remained shut.
Chinese Chime Bells
As a symbol of power, they were used for important ceremonies, starting 3,500 years ago. The bells were played by mallets（木槌） and
created the sounds of seven musical scales（音阶）, much like the
piano. The most famous set unearthed from Duke Zeng's tomb（坟墓）
in Hubei Province.
根据语篇内容，选择最佳选项。
16.图片理解 In which picture can we see the compass ( )
A. B. C.
17.How could the seismograph report earthquakes according to the
passage ( )
A.The dragons would talk clearly.
B.The ball would drop into the mouth of the toad.
C.The spoon would point it out.
18.It's clear that ________.( )
A.the compass was the oldest invention
B.Chinese Chime Bells were only found in Hubei Province
C.the bells were used to play music
19.What do all these inventions have in common ( )
A.They reflect （体现） ancient Chinese wisdom.
B.They are still widely used.
C.They were necessary in people's daily life.
20.文章出处 Where is the passage probably from ( )
A.A novel. B.A magazine. C.A storybook.
As an ancient Chinese sport, the game of jianzi is quite popular now.
Most people in China may have seen or even played this shuttlecock sport at least once in their lifetime.
The sport of jianzi came out in the Han Dynasty. It is believed that
jianzi was from a football—like a game called cuju. At that time, many
children made shuttlecocks at home, using round pieces of tin （钢板）
with chicken feathers （鸡毛）. During the Han Dynasty and the Song
Dynasty, jianzi became the most popular. In 1933, China hosted the first
national jianzi competition. In 1984, jianzi was officially seen as a Chinese national sport.
These days,jianzi is getting more and more popular around the world.
You can see people in foreign countries play this feathered sport. And it
gets different names in different countries, such as Vietnam, Federfussball in Germany, and Jegichagi in Korea.
And do you know how to play jianzi It seems easy. You just need
to keep the shuttlecock “afloat” （漂浮的） with your feet. While it is true that it needs players to use their feet to keep the shuttlecock afloat, using other body parts, such as your knees and chest, is also allowed. Although you may not plan to play jianzi anytime soon, learning about it is important to better understand Chinese culture. And since it's simple and relaxing to play jianzi, why don't you get a shuttlecock to develop your jianzi skills from now on
根据语篇内容，回答下列问题。
When did jianzi first appear
________________________________________________
22.What was jianzi made of
________________________________________
23.Does jianzi have the same name all over the world
____________________________________________
24.How do people play jianzi
___________________________________________________________
25.What do you think of the sport of jianzi
___________________________________________________________
教材回归 根据 2b 课文内容, 从方框中选择恰当的单词并用其正确
形式填空。每个单词只能用一次。
encourage to believe named created popular divide team's
Basketball is a much-loved and popular sport all over the world. It is 26._________ that the first basketball game in history was played on December 21, 1891, and it became an event at the Olympics in 1936. A doctor 27.________ James Naismith invented basketball.
When he was a college teacher, he 28.________ a game to be
played inside on a hard floor. The men in his class were 29.________
into two teams and taught how to play it. They must not only work together to get the ball into the other 30._______ basket, but also need to stop the competing team from getting the ball into their own basket.In these recent years, the 31.___________ of basketball has risen around the world. The CBA games in China are getting more popular.
Many young people look up 32.___ basketball heroes. Besides, the stars 33.__________ them to work hard to make their dreams come true.
答案：1-5、AECBF 6--10、CBCAB 11--15、BCBAC
16-20、BBCAB
21、In the Han Dynasty.
22、Round pieces of tin with chicken feathers.
23、No./No, it doesn't.
24、People/They just need to keep the shuttlecock “afloat”./By keeping the shuttlecock “afloat”.
25.Good./Great./I like it./I don't like it./It can help people to keep healthy.（答案不唯一，合理即可。）
26.believed 27.named 28.created 29. divided 30.team’s 31.popularity 32.to 33.encourage

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