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人教版 英语 九年级全册
Period 6 Section B (3a-Self Check)
Unit6 When was it invented？
同学们，上一课学习的单词、短语和句型，你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
词汇听写
Discuss about what you want to invent and why.
导入新知
3a.Think of something that you do not like to do. Then think of an invention that could help you. Make notes.
Problem：_______________________________
New invention：__________________________
What it is used for：_______________________
quickly taking notes in class
a special pen
correcting mistakes
合作探究
3b. Imagine you are a business person. Write a description of your new invention. Try to sell the invention to the class.
This special pen was invented by Liu Jie. It has three colors and is used for...
eg：This special pen was invented by Liu Jie. It has three colors and is used for taking notes and correcting mistakes. It is very cheap. It is easy to take. It is made of plastic so it's not heavy. Do you want to buy it
Self Check
1.Complete the passage with the correct forms of the words in the box.
invent doubt mention website all of a sudden
It is often difficult to decide on the inventor of certain inventions. ①This is because sometimes a few people may ________ things which are almost the
invent
same. ② It’s hard to tell who came up with the idea first. Some inventions can also lead to other inventions______________.So some people ________ whether the inventor came up with the idea himself or herself. ③ They think that the inventor used someone else’s idea to create his or her invention. That is why books or ________ usually ________ more than one inventor
when giving information about inventions.
all of a sudden
doubt
websites
mention
2.Rewrite these sentences using the passive voice.
1．Someone stole my watch.
______________________________________________________
2．They used five eggs to make this big cake.
______________________________________________________
3．When did they invent the personal computer
______________________________________________________
4．They asked us not to run in the hallway.
______________________________________________________
5．Someone took the video back to the store.
______________________________________________________
My watch was stolen by someone.
Five eggs were used to make this big cake by them.
When was the personal computer invented by them
We were asked not to run in the hallway by them.
The video was taken back to the store by someone.
3.Find out information about an invention you would like to know more about and write sentences below.
Invention：______________________________
When：_________________________________
Who：__________________________________
Purpose：________________________________
Bell
Telephone
1876
To communicate with others
①It is often difficult to decide on the inventor of certain inventions.
decide on 决定，后加名词或动词的-ing 形式。
e.g. We decided on the trip to California all of a sudden.
我们是突然间决定了到加利福尼亚的旅行。
We’ve decided to go away after all.
我们到底还是决定离开。
He made a decision to go to New York finally. 最后他决定去纽约。
1
“决定做某事”的表达：decide to do sth.
make a decision to do sth.
decide对应的
名词为decision。
新知讲解
中考在线1：—Let’s go to the movies this weekend.
— Sorry, but my parents and I have decided_____to Dongjiang
Lake for camping. [ 郴州]
A. go B. going C. to go
C
返回
②This is because sometimes a few people may invent things
which are nearly the same.
This is because... 这是因为……
e.g. All the cars are going slowly.
This is because there is a thick fog.
所有的车都开得很慢，这是因为有浓雾。
That’s why he didn’t go to school.
那就是他为什么没去上学的原因。
2
because引导的是一个表语从句。
系动词之后是表语，表语
由一个句子充当的，被称
为表语从句，引导表语从
句的连接词有：because，
why，that，what，who，when，where，which，whether，how
等。
That’s why...
那就是……
的原因。
中考在线2：You have spent too much time playing computer games.
That’s ________your eyes hurt. [ 潍坊]
A. why B. how C. what D. when
A
nearly /'n li/ adv. 几乎
e.g. He nearly died. 他几乎送命。
It is nearly two o’clock. 差不多两点了。
3
nearly 几乎；差不多；将近 可以和not连用，not nearly 意为“远非，绝不是”；nearly前可用very, pretty等词修饰。
almost 几乎；差不多 可以和no, never, nothing等表示否定意义的词连用，但不与not 连用。
辨析： nearly 与almost
nearly 与almost 两者都可用来修饰不定代词、
形容词、副词、动词、介词短语等，此时两者常可以互换。
e.g. We’ve saved some money, but it’s not nearly enough.
我们存了一些钱，但还远远不够。
I almost never see her. 我几乎从未见过她。
返回
中考在线3：—It took me nearly two days to make the vlog.
—I can’t wait to watch it.____
A. hardly B. probably C. almost
C
③So some people doubt whether the inventor came up with the
idea himself or herself.
come up with 想出（主意、办法等），相当于think up/of。e.g. In the end he came up with a good idea. = In the end he thought up/of a good idea. 最后他想出了一个好主意。
We must drive fast to catch up with the bus.
我们必须开快点才能赶上公共汽车。
4
=keep up with 赶上；跟上
励志语
Success is the ability to go from one failure to another with no loss of enthusiasm.
成功是经历了一个又一个失败也不丧失热情的能力。
中考在线4：在七岁的时候，这个男孩经常想出一些有创意的想法。 [ 淮安]
At__________7, the boy often____________ some creative ideas.
the age of
came up with
返回
假设你最近刚买了一台电动洗脚机器人，你觉得这项发明很好，想把它介绍给你的同学们。短文的开头已给出。
Hello, boys and girls! Today I want to introduce a new invention to you. I think you must be very glad to have one._____
_____________________________________________________
_____________________________________________________
单元话题
话题写作
阅读写作内容, 可获得以下写作信息：
1. 写一项新发明。
2. 要向同学们推荐这款“新发明”，因此文章要写明这项新发明如何好，优势在哪里。
审题指导
写作方法
“5W 法”介绍发明
“5W 法”是指who, when, why, where, what, 即
写作时的主要框架要围绕“谁发明的，什么时候发明的，
为什么发明，在哪里使用，用来干什么”来写。
写作模板
“5W 法”
介绍发明 第一段：开篇推销： I want to introduce...
第二段：简介发明，说明原因（why）
第三段：确定剩余4W的排序及如何表达，并说明其优点
第四段：对产品进行总结性评价，再次推销
经典词句
单词 invention, special, robot, invent,electricity, comfortable, useful,helpful
短语 introduce a new invention to sb. ,be busy doing, a waste of time,deal with, run on, not only... but also, what’s more, without doubt,have a history of, be known for,
be/become popular among
句子 ① I want to introduce a new invention to you.
② I think you must be very glad to have one.
③ It was invented by a famous scientist named Yang Fan this month.
④ It can make your feet not only clean but also comfortable.
⑤ Without doubt, it is useful and helpful in your life.
⑥ It’s one of the most important inventions in the world.
⑦ I love it because it makes my life more enjoyable and convenient.
范文赏析
Hello, boys and girls! Today I want to introduce a new invention to you. I think you must be very glad to have one.
It’s a special robot that can help you wash your feet. I know
most of you are busy doing your homework every night. And some even think washing feet is a waste of time. So the little robot will help you to deal with it.
It was invented by a famous scientist named Yang Fan this
month. It looks lovely. While you are doing your homework at
home, it will help you to wash your feet softly and warmly under the desk. It runs on electricity. It can make your feet not only clean but also comfortable. What’s more, the little robot can sing beautiful songs as it works.
Without doubt, it is useful and helpful in your life.
名师点评
短文运用了“5W法”来介绍发明物——电动洗脚机器人。先点明发明物，再用“5W”详细介绍，最后作总结评价。
短文运用introduce, glad,special , be busy doing sth., a waste of time, deal with, not only... but also等词汇，使句意表达准确生动。while, what’s more, without doubt 的运用使前后文之间衔接紧密，短文生动。
本节课主要学习掌握了如何写有关自己的发明物的作文，做了Self Check部分的练习题并掌握了知识点This is because…的用法。
归纳新知
一、从方框中选择恰当的词并用其适当形式填空。
1. Electricity plays an important role in our ________ lives.
daily, hero, nation, list, translate
daily
课后练习
2. Look at the table. The top five TV plays are ________ in it.
daily, hero, nation, list, translate
listed
3. We will report these ________ . They are the pride of our country.
daily, hero, nation, list, translate
heroes
4. His new book was __________ into many languages as soon as it came out.
daily, hero, nation, list, translate
translated
5. He began to play in the ________ team when he was 14 years old.
daily, hero, nation, list, translate
national
二、单项选择。
6. —Do you know who is the greatest ______
— Thomas Edison. He created more than 2,000 inventions in his life.
A. doctor B. musician
C. inventor D. painter
C
7. — Although she didn’t ______any names, everyone knew whom she was talking about.
—That was amazing.
A. avoid B. repeat C. discover D. mention
D
8. [2019·日照] The teacher changed my seat to the front so that I could see the words on the blackboard _____ .
A. nearly B. hardly
C. closely D. clearly
D
9. —Do you have many strict rules in your school
— Yes. For safety, we are asked _____ in the hallways.
A. running B. not running
C. to run D. not to run
D
10. — Would you please bring me the book on the dining table
— _____. Please wait a minute!
A. It doesn’t matter B. With pleasure
C. That’s true D. Don’t mention it
B
三、 将下列句子改为被动语态。
11. Someone stole my camera from my hotel room.
My camera _________ _________ from my hotel room by someone.
was stolen
12. My parents advised me not to use the mobile phone.
I ________ ________ not to use the mobile phone by my parents.
was advised
13. Sally bought my sister a bicycle yesterday.
A bicycle ________ ________ for my sister by Sally yesterday.
was bought
9. The boss made the workers work twelve hours a day.
The workers ________ ________ ________ ________ twelve hours a day by the boss.
were made to work
15. Where did you find the bicycle
Where ________ the bicycle ________ by you
was found
四、根据汉语意思完成句子，每空一词。
16. 食用过多的糖会引起健康问题。
Eating too much sugar can ________ ________ health
problems.
lead to
17. 突然，我想起我没有锁门。
________ ________ ________ ________, I remembered
that I hadn’t locked the door.
All of a sudden
18. 你已经想出了一个度假的好地方吗？
Have you ________ ________ ________ a good place to
spend a holiday
come up with
19. 对于将来从事什么职业，我现在不能决定。
I can’t ________ ________ what to do in the future now.
decide on
20. 据说我们班三分之二的学生在使用APP 来学习英语。
________ ________ ________ two thirds of the students in our class are studying English by APP.
It's said that
五、短文填空。
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。
You have probably used a microwave oven (微波炉) to heat up food at home, but do you know who invented it It was invented by an American engineer and 21________ (invent) named Percy Lebaron Spencer.
inventor
Spencer was born in the US in 1894. As a baby, he 22 ________ (send) to live with his aunt and uncle after his father’s sudden death. Sadly, when Spencer was seven, his uncle died. 23 ________ a result, Spencer had to leave school and started to work at an early age. After that, work became part of his 24 ________ (day) life. Although life was hard to him, it brought him a lot of 25 ___________ (please), because he could learn a lot from it.
was sent
As
daily
pleasure
When Spencer was eighteen, he joined the army. He worked on 26 _____ project to design radar sets ( 雷达装置) for the US army. He discovered the power ( 力量) of microwave technology 27 _____ accident in 1945. This led to his invention of the microwave oven. In 1967, the first microwave oven for home use 28 ________________ (develop). It cost just $495 and became very popular with customers. It often appeared on their shopping lists.
a
by
was developed
By the end of the 1980s, microwave ovens had already gone into 29 ________ (near) every American family’s kitchen.
Spencer’s invention of the microwave oven has made people’s lives much 30 ________ (easy). He is thought to be a hero and people all over the world look up to him.
nearly
easier
再 见
