中小学教育资源及组卷应用平台
Unit 6 When was it invented
单元质量评价
(时间120分钟 总分120分)
第一部分 听力(共五节,30小题;每小题1分,满分30分)
第一节 听对话,选择相应的图片。(读一遍)
( )1.
( )2.
( )3.
( )4.
( )5.
( )6.
第二节 听句子,选择最佳应答。(读一遍)
( )7.A.In 1885. B.For 200 years. C.Since 1876.
( )8.A.Drinking. B.Playing. C.Cutting.
( )9.A.Not at all. B.Never mind. C.With pleasure.
( )10.A.Lu Yu. B.Three years. C.Tea.
( )11.A.Yes, it did. B.Yes, I did. C.Yes,I do.
( )12.A.Don’t worry. B. OK, I will. C. Sorry,I won’t.
第三节 听对话,选择最佳选项完成句子。(读两遍)
( )13.Madam Lin will fly to Chicago______.
A.on October 3rd B.on October 13th C.on October 30th
( )14.The speakers will______tonight.
A.buy a model ship B.watch a film C.do some reading
( )15.Tom is drawing______.
A.a map of China B.a map of Australia C.a map of America
( )16.David is reading______.
A.Fantastic Four B.Alice in Wonderland C.Treasure Island
( )17.The two speakers’ relationship is______.
A.mother and son
B.father and daughter
C.a policeman and a woman driver
( )18.The girl volunteered______last summer.
A.to visit a museum
B.to help clean the hospital
C.to take care of old people
第四节 听对话,根据对话内容及问题,选择最佳选项。(读两遍)
听下面一段对话,回答第19、20题。
( )19.Who will give them a talk
A.A famous teacher. B.A famous writer. C.A famous inventor.
( )20.When will the talk take place
A. On Saturday afternoon.
B. On Saturday morning.
C. On Sunday afternoon.
听下面一段对话,回答第21、22题。
( )21.What does the girl think is the most important invention
A.The computer. B. The electricity. C. The wheel.
( )22.Who is the man
A.The girl’s father. B. The girl’s teacher. C. The girl’s classmate.
听下面一段对话,回答第23、24题。
( )23.Who gave Jack the new mobile phone
A.His father. B.His mother. C.His uncle.
( )24.How much did the new mobile phone cost
A.$200. B.$400. C.$500.
第五节 听短文或独白,完成表格中所缺信息,每空仅填一词。(读三遍)
Helen’s Invention
Appearance ·Helen’s invention is a25. ______type of car. It has two wings and26. ______ wheels.
On land/In the air ·It can run as fast as an27. ______car. ·Its two wings will be used28. ______of its wheels.
Character ·Uses less petrol, so it can make29. ______pollution. ·Helen thinks her invention will help people live a better30. ______in the future.
第二部分 完形(共两节,满分16分)
第一节 (共6小题;每小题1分,满分6分)
阅读下面短文,从短文前的选项中选出能填入空白处的最佳选项。选项中有一个为多余选项。
A.in B.eating C.thousands D.ago E.before F.after G.from
Coffee has been a part of people’s lives for 31. of years, and it is still a favorite drink 32. the world.Here is a story of coffee about how it was discovered.The story tells us coffee was discovered in Africa long long 33. .
One day a farmer was watching his goats, and saw them 34. some berries (浆果) from a plant.The goats became very active 35. they ate the berries.The man often felt tired, so he decided to try the berries, too.To his surprise, he didn’t feel tired any more.Coffee plants were thus discovered.The coffee was taken 36. Africa to other countries in Europe.After that the farmers started to grow coffee plants there, especially in South America.
第二节 (共10小题;每小题1分,满分10分)
阅读下面短文,从短文后各题所给的A、B、C三个选项中,选出可以填入空白处的最佳选项。
Every year, thousands of young inventors show their ideas at NICEE.Some kids are invited to NICEE.The main goal of NICEE is to help kids know real problems and find ways to 37 them.
To support this 38 , many schools now have invention clubs.Kids in the clubs work together.They look 39 ways to make life better.They might invent something to make a job 40 or make people safer.
For example, Lucca wanted to help people 41 his grandmother.She had to wear a breathing mask(面罩) in the hospital.That made it hard for others to hear her
42 .So Lucca invented a new mask.It has a microphone.It 43 the person’s voice to a speaker(扬声器).Now users can talk with others.
Inventions can be simple.One winner, Maddox, made a new garden shovel (铁铲).The shovel has marks on 44 to help gardeners know how deep to dig their holes.
45 kids choose an idea, they have to build a model that works.They cannot spend more than $50.The invention must be something new.It also must fit inside a certain space.
NICEE shows the best inventions from the states.Young inventors get to meet one another.They see others’ great ideas.Some of them win prizes.They can 46 learn about ways to sell their inventions.
( )37.A.answer B.solve C.develop
( )38.A.way B.chance C.goal
( )39.A.for B.into C.up
( )40.A.harder B.easier C.worse
( )41.A.as B.with C.like
( )42.A.sound B.noise C.voice
( )43.A.hears B.says C.sends
( )44.A.it B.him C.its
( )45.A.While B.Although C.When
( )46.A.instead B.never C.even
第三部分 阅读(共三节,满分44分)
第一节 (共12小题;每小题2分,满分24分)
阅读下面三个语篇,从每题所给的A、B、C三个选项中,选出最佳选项。
A
Can you imagine a cloud floating in the middle of your room Do you want to know what it feels like to fly like a bird Here,we have picked out four interesting inventions to share with you.
Talking Gloves Four foreign students have created a pair of gloves,and it helps people to communicate with people who have hearing and speaking problems.The gloves are equipped with sensors(传感器).They recognize sign language and translate it into text on a smartphone.Then the smartphone changes the text to spoken words.Thus you can understand sign language easily.
Google Glasses Google Glasses are like a computer built into a pair of glasses.Then the glasses allow you to surf the Internet and make calls without even lifting a finger.The glasses also have a camera and GPS mapping system.Users can take and share photos,check maps and surf the Internet just by looking up,down,left and right.
Indoor Clouds That’s a real world.An artist,Smilde managed to create a small but perfect white cloud in the middle of a room using a fog machine.But it required careful planning-the temperature,humidity(湿度)and lighting; all had to be just right.The cloud only lasted for a short while,though.
Wingsuits The suit realizes your dream of flying like a bird.Well,not exactly flying,but gliding(滑翔)through the air.It increases the surface area of the human body,which makes it easier for people to float in the air.Fliers wearing wingsuits can glide one kilometer in about 30 seconds.
( )47.What do “Talking Gloves” help people to understand
A.Spoken words. B.Sign language. C.Written words.
( )48.How did the artist create a white cloud in the room
A.With a fog machine.
B.With right temperature.
C.With a fog machine and careful planning.
( )49.Which of the following can help you fly
A.Talking Gloves. B.Wingsuits. C.Google Glasses.
( )50.What’s the best title of the passage
A.Four Interesting Inventions
B.Four Famous Inventions
C.The Advantages of Four Inventions
B
Tea bag drinking is most Westerners’ favorite way of drinking tea. Do you know how it came about
The tea bag was invented in 1980 by Thomas Sullivan, an American tea seller. He was sending out free tea in silk bags for people to try. People put the bags together with the tea leaves into the cup and added hot water. The tea tasted good, and people thought it was easy to clean the cup. They were not happy when Sullivan started sending them loose(散的) tea again.
Sullivan realized that he had a hot new thing in his hands, and he built a machine to pack the bags. As tea bags became popular, they were changed from silk to gauze(薄纱) and later paper. In 1952, Lipton Tea made the tea bag even more popular with its invention of the four-sided tea bag. Tea bags were soon a hit in the UK, and today 85% of the tea in the UK is packed in paper bags.
However, many people still prefer loose-leaf tea. This is because some tea companies put not very good tea in their tea bags. But for most drinkers, tea bags are still the easy, tasty way to go.
( )51.______ invented tea bags.
A.An English tea seller B.The Chinese C.Thomas Sullivan
( )52.The tea in silk bags was welcome because ______.
A.the tea in bags was free and very good
B.the tea tasted good and the cups were easy to wash
C.people were happy with the loose tea
( )53.The underlined part “Tea bags were soon a hit in the UK” means “______ in the UK”.
A.Tea bags soon became popular
B.Tea bags surprised everyone very much
C.Tea bags kicked(踢) the loose-leaf out of the market
( )54.The material of the tea bag is usually ______now.
A.silk B.gauze C.paper
C
Have you ever heard of “a ball of energy” People often use it to describe very active children. But today we tell about an invention called the soccket, which is a real soccer ball of energy. Julia Silverman explains that in fact the soccket is a portable generator(便携式发电机).
Julia Silverman and Jessica Matthews developed the soccket as part of a group project for an engineering class at Harvard University.
There are mechanisms(机械装置) in a soccket. When you kick, hit or throw it, energy is then kept in it by these mechanisms instead of disappearing into the environment.Then the user can put something directly into the ball, like a lamp, or a mobile phone charger so that they can get energy from it.
For every fifteen minutes of the game play, the soccket can provide enough electricity(电) for an LED lamp for three hours, and the ball can store(储藏) up to 24 hours’ electricity.
The International Energy Association reported last year that nearly one and a half billion people in the world had no electricity to use, and most of them live in sub-Saharan Africa and in India and other countries in Asia.
Julia Silverman and Jessica Matthews both had experiences in developing countries before they began the project. They knew that power shortages are a serious problem in really poor areas.
There’s an energy crisis in the world. One out of every five people in the world doesn’t have any electricity. And besides that, there are a lot of health problems because what people use instead of the electricity are harmful choices like kerosene(煤油) lamps, which produce a lot of smoke.
Julia Silverman says the soccket ball is one small solution(解决方法) to a big problem.
Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages. It offers people a chance to put their energy into the world’s most popular sport and get some energy in return.
( )55.From the passage, we know the soccket is ______.
A.an active child B.an invention C.a lamp
( )56.If you play soccket for half an hour, it can provide an LED lamp with electricity for______.
A.fifteen minutes B.half an hour C.six hours
( )57.The underlined word “crisis” in the passage means ______.
A.a time of safety B.a time of difficulty C.a time of success
( )58.We can infer(推断) from the passage that ______.
A.Julia Silverman has never been to developing countries before
B.active children like to play soccket
C.people are expected to get some energy by playing soccket
第二节 (共5小题;每小题2分,满分10分)
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。
As to the beginning of badminton, there are a lot of stories. 59 But one thing is for sure - badminton started in the U.K.and it was developed from tennis.
60 In the year of 1870, a sort of ball made of feathers and wood as well as a bat woven with strings was invented.Ever since 1873, the sport of badminton has become more and more prosperous.At that time, the field was like a gourd, with two wider spaces at both ends and a narrow stretch of land in the middle where a net was set up.
61
In 1893, the first badminton committee was established, 62 And it held a badminton championship competition in 1899 nationwide.
63 The members are Canada, Denmark, Britain, France, Ireland, Holland, New Zealand, Scotland and Wales.Ever from then on, there have been more and more badminton competitions.
A.This gourd-shaped field was changed into a square shape in 1901.
B.which was then the British Badminton Association.
C.which was called the American Badminton Association.
D.You may discover that there are a lot of similarities between the two.
E.Some say that it started in Japan, and others say that it started in India.
F.In 1934, an international badminton association was founded with its headquarters(总部) in London.
第三节 (共5小题;每小题2分,满分10分)
阅读下面短文,根据其内容填空或回答问题。(第64题至第67题每空不超过3个词,第68题回答问题。)
Riding a bike has become popular during the past three years.This has developed the bike business a lot.For example,in 2019,the sales of bikes were 4 billion in Germany.However,the sales in the country had an increase of 2.56 billion in 2021,setting a new record.And Germany is expecting another record year for 2023.
As one of the easiest means of transportation,riding a bike is certainly good exercise.Also,in times of rising fuel prices,more people want to use bikes instead of private cars or public transportation.It’s no wonder that innovations in bikes always appear.The following are two bike new trends(趋势)for the year of 2023.
It’s reported that about 150,000 bikes get lost every year.So the need for a good lock is becoming greater.The latest lock can be opened through an app.The mobile phone is the key.Through bluetooth,the U-lock opens when the owner goes near to the bike. If a stranger moves the bike,the lock will make a loud alarm sound. By the way,the lock can also be opened for family members through the app.
As more and more people use bikes,they often put a bike bag on the bike to carry things.But what will they do with the bike bag when finishing their rides Not long ago,two 17-year-old high school students named Karl and Leander showed their special bike bags.When the bike ride is over,it’s very easy to turn the bike bag into a backpack and continue running with it on the back.It’s really cool and useful.
Riding a bike seems to be a trend both in cities and in the countryside.And there will be more innovations to make the ride enjoyable.
64.The sales of bikes were 6.56 billion in Germany in ______.
65.The underlined word “innovations” in Paragraph 2 means ______ in Chinese.
66.The latest lock of a bike can be opened through an app and the______ is the key.
67.Karl and Leander can turn their bike bags into______when finishing their rides.
68.The writer thinks bike riding will be ______ in the future.
第四部分 语言运用(共两节,满分15分)
第一节 (共5小题;每小题1分,满分5分)
根据中文意思,补全英语译文。(每空限填一词, 缩写算一词)
69.她对待工作一直很认真。
She is always ______ ______ her work.
70.我总共花费100元买书。
I spent 100 yuan on the books______ ______ ______.
71.我将坚持我的决定。
I will______ ______ my decision.
72.妈妈总是鼓励我在早晨锻炼。
Mom always______ me______ exercise in the morning.
73.这张照片是我六岁的时候拍的。
This photo ______ ______ when I was six years old.
第二节 (共 10 小题;每小题 1分,满分 10 分)
阅读下面短文,在空白处填入1个适当的词或括号内单词的正确形式。
The first chocolate was enjoyed 74. ______the people in Central and South America hundreds of years ago. In those days, the cocoa bean(可可豆)was used to make chocolate drink. Much later, it 75. ______ (bring) to Europe.
In 1824, Mr Cadbury opened 76. ______ small shop in the United Kingdom. He sold chocolate drink.In 1831, he opened a factory to make chocolate drink. Mr Cadbury believed that wine was bad and he wanted 77. ______ (encourage) people to drink chocolate instead. A few years later, a man invented a way to make chocolate bars(块), 78. ______ people had the chance to eat chocolate instead of only drinking it.At first, only dark chocolate was made. Milk chocolate came later and 79. ______ (they) was made by adding milk to the chocolate. Mr Cadbury made the 80. ______ (one) milk chocolate bar in 1897. The most famous chocolate, Cadbury’s Milk Bar, was made in 1905. It 81. ______ (be) popular for over 100 years. The Cadbury Factory still82. ______ (make) chocolate in the United Kingdom, and the chocolate is eaten all over the world. Every year, thousands of 83. ______ (visit) go to the factory to see how chocolate is made.
第五部分 写作(满分15 分)
84.发明创造改变了世界。作为一名中学生,假如你梦想当一名发明家,应该怎样做才能实现梦想呢 请根据下面的要点提示,以“How to Become an Inventor”为题,写一篇80词左右的短文。
How to Become an Inventor
____________________________________________________________________
____________________________________________________________________
____________________________________________________________________
听力原文和答案解析
第一节 听对话,选择相应的图片。(读一遍)
1.M: Jane, what are you doing
W: I’m looking for my eraser.I don’t know where my eraser is.
2.M: What are the children doing
W: Look! The children are playing basketball outside.
3.M: What can you see in the box
W: I can see some shoes in the box.
4.M: Who do you know invented the telephone
W: I know Bell invented the telephone, which has changed the world a lot.
5.M: Look! How fast Jack is swimming!
W: Yes, he is really good at it.
6.M: This is a really old bike.
W: Yes, it’s my father’s. My father rode it to school when he was young.
第二节 听句子,选择最佳应答。(读一遍)
7.When was the car invented
8.What are knives used for
9.Can you help me think of an invention
10.Who is called “the saint of tea”
11.Did you know potato chips were invented by mistake
12.Sir, don’t smoke in the museum.
第三节 听对话,选择最佳选项完成句子。(读两遍)
13.M: What can I do for you, Madam Lin
W: I want to buy an air ticket to Chicago for October 30th.
M: OK. There is a flight leaving for Chicago at 4:00 p.m. on that day.
W: That’s fine. How much should I pay
M: 3,000 yuan.
14.M: Look at that model ship! It’s a model of the ship Titanic.
W: Wow, what a beautiful model ship!
M: The Titanic was the largest ship in the world then. But it sank in April, 1912.
W: What a pity! Can you tell me more about it
M: To know more about the Titanic, why not go to watch the film Titanic with me tonight
W: Good idea!
15.W: Wow, what are you drawing, Tom Is it an animal
M: No. I’m drawing a map of China. My teacher said it looks like a chicken.
W: Really Can you show me when you finish
M: Of course!
16.W: Hi,David. What are you doing
M: I’m reading a book. It’s so interesting.
W: What’s the name of the book
M: Alice in Wonderland. Do you want to have a look
17.M: You look like a middle school student. I don’t think sixteen-year-olds should be allowed to drive a car.
W: But I’m already 20 years old, Sir.
18.M: What did you do last summer
W: I volunteered to take care of some old people in a hospital.
第四节 听对话,根据对话内容及问题,选择最佳选项。(读两遍)
听下面一段对话,回答第19、20题。
W: Hi, Daniel, This is Mary.
M: Hi, Mary. A famous inventor will come to our school and give us a talk on his new invention. Would you like to go
W: Sure, when will it start
M: At 2:30 this Saturday afternoon.Don’t be late.
W: I won’t.See you then.
M: See you.
听下面一段对话,回答第21、22题。
M: Good morning, everyone. Today, let’s talk about scientific inventions. What do you think is the most important invention
W: The computer, I think.
M: Why do you think so
W: Our lives get much more convenient because of it.
M: But can it work if there is no electricity
W: Oh, no. I’m confused. Tell me the answer, please.
M: The wheel. Today we will study the history of the wheel. Please open our books and turn to Page 10.
听下面一段对话,回答第23、24题。
M: What do you think of my new mobile phone, Mary
W: It looks better than your old one, Jack. Did you get it from your parents
M: No. I got it from my uncle as a gift. It is the latest model.
W: How much did it cost
M: You won’t believe it! It cost only $500.
第五节 听短文或独白,完成表格中所缺信息,每空仅填一词。(读三遍)
Helen’s Invention
My invention is a new type of car. People can use it on land or in the air. This kind of car has two wings on both sides and four wheels under the car. On the ground, it can run as fast as an ordinary car. When it is in the air, the two wings will make the car move instead of the wheels.
This kind of car is more convenient and uses less petrol than an ordinary car, so it can save energy and make less pollution. I think my invention will help people live a better life in the future.
1—6 CABACB 7—12 ACCABC 13—18 CBABCC 19—24CAABCC 25.new 26.four 27.ordinary 28.instead 29.less 30.life
31—36 CADBFCG
【主旨大意】本文是一篇说明文。主要向我们介绍了发明创业博览会的相关内容。
37.B 考查动词辨析。句意:发明创业博览会的主要目标是帮助孩子了解真正的问题,并找到解决问题的方法。answer回答;solve解决;develop发展。根据“help kids know real problems”和“find ways”可知,是找到方法去解决问题,因此solve符合句意。
38.C 考查名词辨析。句意:为了支持这一目标,许多学校现在都有发明俱乐部。way方法;chance机会;goal目标。根据“The main goal of NICEE is to help kids know real problems...”和“support”可知,是支持这个目标,因此goal符合句意。
39.A 考查短语辨析。句意:他们寻找使生活更美好的方法。look for寻找;look into调查;look up向上看。根据“ways to make life better”可知,是寻找使生活更美好的方法;再根据固定搭配“寻找:look for”可知,for符合句意。
40.B 考查形容词辨析。句意:他们可能会发明一些东西让工作更容易,或者让人们更安全。harder更难的;easier更简单的;worse更糟糕的。根据“make people safer”可知,是让工作更容易,因此easier符合句意。
41.C 考查介词辨析。句意:例如,卢卡想帮助像他祖母一样的人。as正如;with和;like像。根据“She had to wear a breathing mask in the hospital.”可知,是想帮助像他祖母一样的人,因此like符合句意。
42.C 考查名词辨析。句意:那让别人很难听到她的声音。sound声音;noise噪音;voice嗓音。根据“hear”和“the person’s voice to a speaker”可知,是很难听到她的声音,因此voice符合句意。
43.C 考查动词辨析。句意:它把人的声音发送给扬声器。hears听到;says说;sends发送。根据“voice to a speaker”可知,是把声音发送到扬声器,因此sends符合句意。
44.A 考查代词辨析。句意:铁铲上有记号,可以帮助园丁知道挖洞要挖多深。it它;him他;its它的。根据“The shovel”可知,是铁铲上有记号,因此it符合句意。
45.C 考查连词辨析。句意:当孩子们选择一个想法时,他们必须建立一个可行的模型。While当……时;Although尽管;When当……时。根据“kids choose an idea”和“they have to build a model that works”可知,当孩子们选择一个想法时,而“choose”是短暂动词,因此when符合句意。
46.C 考查副词辨析。句意:他们甚至可以学习如何销售他们的发明。instead相反;never从不;even甚至。根据“sell their inventions”可知,甚至可以学习如何销售他们的发明,因此even符合句意。
【主旨大意】本文主要讲述了四项有趣的发明。
47.B 细节理解题。根据Thus you can understand sign language easily.可知, “会说话的手套”能帮助人们理解手语。
48.C 细节理解题。根据An artist,Smilde managed to create a small but perfect white cloud in the middle of a room using a fog machine.But it required careful planning—the temperature,humidity and lighting; all had to be just right.可知,艺术家是通过用雾机经过仔细规划在房间里创造出一朵白云的。
49.B 细节理解题。根据 The suit realizes your dream of flying like a bird.可知,翼装可以帮助你飞行。
50.A 标题归纳题。通读全文,尤其是根据Here,we have picked out four interesting inventions to share with you.可知,本文主要讲述了四项有趣的发明。
【主旨大意】本文主要介绍了茶包的历史以及它的优缺点。
51.C 细节理解题。根据第二段“The tea bag was invented in 1980 by Thomas Sullivan, an American tea seller”可知茶包是由Thomas Sullivan发明的。
52.B 细节理解题。根据第二段“He was...The tea tasted good, and people thought it was easy to clean the cup”可知茶味道很好,杯子也很容易洗,所以丝绸袋里的茶很受欢迎。
53.A 推理判断题。根据第三段“Tea bags were soon a hit in the UK, and today 85% of the tea in the UK is packed in paper bags.”可知如今英国85%的茶叶是用纸袋包装的,所以茶包在英国是很受欢迎的。
54.C 细节理解题。根据第三段“Sullivan realized...As tea bags became popular, they were changed from silk to gauze and later paper.”可知随着茶叶袋的流行,它们从丝绸变成了薄纱,后来又变成了纸,所以现在茶包的材料通常还是纸。
【主旨大意】本文介绍了一种叫soccket的用来提供能量的发明。这是一个真正的充满能量的足球,实际上soccket是一个便携式发电机,是由Julia Silverman和Jessica Matthews两人研制的,Jessica Matthews和Julia Silverman希望soccket将为解决世界电力短缺这一难题带来希望和光明。
55.B 细节理解题。根据第一段“But today we tell about an invention called the soccket”可知soccket是一种发明。
56.C 细节理解题。根据第四段“For every fifteen minutes of the game play, the soccket can provide enough electricity for an LED lamp for three hours在每玩15分钟的游戏中,soccket就可以为一盏LED灯提供足够的电力供三个小时使用。”那么结合题意,玩半小时,也就是两个15分钟,推出正好是三个小时的2倍即六个小时。
57.B 词义猜测题。根据后句 One out of every five people in the world doesn’t have any electricity 世界上每五个人中就有一个没有电,推出前句应是说不好的事情,即世界存在着能源危机,结合选项只有B.a time of difficulty “困难时期”与之意义相似。
58.C 推理判断题。根据第七段 There’s an energy crisis in the world并结合最后两段的内容Julia Silverman says the soccket ball is one small solution to a big problem. Jessica Matthews and Julia Silverman hope their soccket ball will shine more light on the problem of power shortages.可推出人们期望通过玩 soccket获得一些能量,故C的说法正确。
59.E 60.D 61.A 62.B 63.F
64. 2021.
65.创新
66. mobile phone
67. backpacks
68. a trend
69 serious about
70. in total.
71. stick to
72. encourages to
73. was taken
74.by 75.was brought 76.a 77.to encourage 8.so 79.it 80.first 81.has been 82.makes 83.visitors
84.
How to Become an Inventor
As a middle school student, I always dream of becoming a great inventor.How to be an inventor The following advice may help us a lot.First, we must study hard to get more knowledge.It’s impossible for us to invent anything without knowledge.Second, we should have an interest in inventing.When we are interested in something, we can do it well.Third, we need to be creative.We should always come up with new ideas.Most importantly, we should keep on and never give up.If we work hard, our dream will come true.
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