Unit 4【单元练习】——2022-2023学年仁爱版英语九年级全册单元综合复习（原卷版+解析版）

仁爱版九年级英语上册Unit4 Amazing Science

【真题模拟练】

班级___________ 姓名___________ 学号____________ 分数____________

  （考试时间：60分钟  试卷满分：100分）

一、单项选择（每小题1分，共10分）

1．（2022·广西玉林·中考真题）—Volunteering is a meaningful activity.

—I agree. We should express thanks to the people ________ do volunteer jobs.　　

A．whom B．what C．who D．which

2．（2022·广西梧州·中考真题）Three Chinese astronauts ________ into space on June 5th, 2022.

A．were taking B．are taking

C．were taken D．are taken

3．（2022·辽宁营口·中考真题）—Shall we go fishing?

— ________. The wind is too strong. Let’s stay at home and read books.

A．Good idea B．I agree with you

C．Don’t be silly D．No problem

4．（2022·辽宁营口·中考真题）A speech on robots ________ in the school hall next Friday afternoon.

A．is given B．will be given

C．was given D．has been given

5．（2022·辽宁朝阳·中考真题）It’s said that tea __________ by accident about five thousand years ago.

A．was invented B．is invented C．will be invented D．were invented

6．（2022·全国·九年级单元测试）For a moment he was completely ________ over by the news of his friend’s death.

A．knocked B．knocking C．turned D．turning

7．（2020·全国·九年级单元测试）At the end of the lecture, I’d like to divide all the students ________ small discussion groups.

A．for B．to C．into D．with

8．（2022·全国·九年级单元测试）Sorry, madam. You’d better come tomorrow because it’s ________ the opening hours.

A．during B．at C．beyond D．before

9．（2022·云南保山·九年级期末）________ that mobile phones play important roles in the modern life.

A．There’s no doubt B．There’s no way C．There’s no answer D．There’s no news

10．（2022·云南保山·九年级期末）—In which direction were they going?

—I can’t say ________. I didn’t notice them.

A．for instance B．for example C．for certain D．for short

二。、完形填空（每小题1分，共10分）

（2021·山东青岛·中考真题）

Every year, thousands of young inventors show their ideas at NICEE. Some kids get invited to NICEE. The main goal of NICEE is to help kids know real problems and find ways to _____11_____ them.

To support this _____12_____, many schools now have invention clubs. Kids in the clubs work together. They look _____13_____ ways to make life better. They might invent something to make a job _____14_____ or make people safer.

For example, Lucca wanted to help people _____15_____ his grandmother. She had to wear a breathing mask(面罩) in the hospital. That made it hard for others to hear her _____16_____. So Lucca invented a new mask. It has a microphone. It _____17_____ 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 _____18_____ to help gardeners know how deep to dig their holes.

_____19_____ 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 _____20_____ learn about ways to sell their inventions.

11．A．answer B．solve C．develop D．create

12．A．way B．chance C．goal D．decision

13．A．for B．into C．up D．at

14．A．harder B．easier C．worse D．stronger

15．A．as B．with C．by D．like

16．A．sound B．noise C．voice D．sign

17．A．hears B．says C．discovers D．sends

18．A．it B．him C．its D．them

19．A．Before B．Although C．When D．While

20．A．instead B．never C．finally D．even

三、阅读理解（每小题2分，共40分）

A

（2022·辽宁营口·中考真题）

It is often said, “You can’t live only on air.” But now the Chinese scientists can tell you: Maybe you can.

Recently, some Chinese scientists have developed a new technique（技术）. They turned CO2, one of the main greenhouse gases, into starch（淀粉）.

Starch is the main part of flour（面粉）, rice and corn that we eat every day. Usually, it’s created by plants with CO2, water and sunlight.According to the team’s director Ma Yanhe, it takes the plants nearly 60 steps to produce starch. But now, the team, after six years of hard work, has found a simpler way to do this, with only 11 steps.

“Our study shows that creating something like starch is possible in a lab, and this technology may be helpful in many areas.” said Ma.

The scientists first turned CO2 and hydrogen（氢气）into methanol（甲醇）. Then they pieced（分解）these methanol molecules（分子）into bigger and more complex（复杂的）molecules. Finally the starch was produced.

This method makes it possible to produce food in factories, replacing traditional farming. This will not only help make plenty of food, but also save water and land. It may also help recycle CO2 to deal with climate（气候）change, according to China Daily.

The study can be helpful in space, too. Astronauts may no longer need to worry about their food as they travel in space. They may simply turn the CO2 they breathe out into the food they eat!

21．With a new technique, the Chinese scientists could turn ________ into starch.

A．CO2 B．air C．water D．sunlight

22．Plants can create ________ with CO2, water and sunlight.

A．methanol B．hydrogen C．starch D．greenhouse gas

23．According to the last two paragraphs, the new method may not help ________.

A．produce food in factories B．recycle CO2 to deal with climate change

C．save water and land D．send astronauts into space

24．According to the passage, which of the following is wrong?

A．Producing starch in the lab needs fewer steps now.

B．The new technology may be helpful in many areas.

C．The method will help make plenty of food.

D．The study will be of no help to astronauts.

25．The passage may be from a ________.

A．guidebook B．magazine C．poem D．novel

B

（2022·广东·中考真题）

26．What can the smart devices in Paragraph 1 do?

A．Farming. B．Business. C．Housework. D．Schoolwork.

27．What does Little Q look like?

A． B．

C． D．

28．When can a visitor enter the science center?

A．On Monday morning. B．On Sunday morning. 

C．On Monday afternoon. D．On Sunday afternoon.

29．Who can be allowed to visit the center?

A．A man with a cat. B．An 8-year-old boy alone.

C．A man with his 3-year-old son. D．A girl with food from outside.

30．How can a visitor book a ticket?

A．By making a phone call. B．By sending an e-mail.

C．By visiting the website. D．By going to the ticket office.

C

（2022·广西贵港·中考真题）

It’s often said, “You can’t live only on air.” But now the Chinese scientists can tell you: Maybe you can.

Recently, some Chinese scientists have made a big breakthrough (突破). They turned CO2 into starch (淀粉).

Starch is the main part of rice and corn that we eat every day. Usually, it’s created by plants with CO2, water and sunlight. According to the team’s director Ma Yanhe, it takes the plants nearly sixty steps to produce starch. But now, the team, after six years of hard work, has found a simpler way to do this, with only eleven steps.

“Our study shows that creating something like starch is possible in a laboratory, and this technology may be helpful in many areas,” said Ma.

The scientists first turned CO2 and hydrogen (氢气) into methanol (甲醇). Then they made these methanol molecules (分子) into bigger and more complex (复杂的) molecules. Finally the starch came out.

This method makes it possible to produce food in factories instead of traditional farming. This will not only help make plenty of food, but also save water and land. It may also help recycle CO2 to deal with climate (气候) change, according to China Daily.

The study can be helpful in space, too. Astronauts may no longer need to worry about their food as they travel in space. They may simply turn the CO2 they breathe out into the food they eat!

31．What achievement have the Chinese scientists made recently?

A．They created starch with CO2.

B．They grew corn in space.

C．They turned O2 into starch.

D．They improved traditional farming.

32．How many steps do the scientists need to produce starch now?

A．3. B．6. C．11. D．60.

33．What did the scientists do first to make starch?

A．They recycled CO2 in space.

B．They produced rice and corn on the farm.

C．They turned CO2 and hydrogen into methanol.

D．They made methanol molecules into bigger and more complex ones.

34．The technology may be helpful in the following areas EXCEPT ________.

A．making food

B．putting sunlight to good use

C．saving water and land

D．dealing with climate change

35．What’s the best title of the passage?

A．How to Deal with CO2

B．The Advantages of Making Starch

C．How to Make Food in Space

D．China’s First Step in Man-made Food

D

（2022·贵州黔东南·中考真题）

To Borrow Arrows with Thatched Boats

One day, Zhou Yu ordered Zhuge Liang to make 100,000 arrows（箭）in ten days. Zhou Yu thought it was impossible, but Zhuge Liang said, “Give me three days.” Then he asked Lu Su to lend him 20 boats, and the soldiers put some scarecrows（稻草人）in line on the boats. He reminded Lu Su not to tell Zhou Yu what was happening.

When Lu Su came again to see Zhuge Liang, he found nothing unusual. Nothing happened on the second day, either. In the small hours（凌晨）of the third day, Zhuge Liang invited Lu Su for a boat ride. The 20 boats were tied together with strong ropes. Zhuge’s fleet went towards the camp of Cao Cao. The surface of the river was covered with thick mist（雾）all over. People could hardly see each other on the river. When Zhuge’s fleet got close to the Cao camp before dawn（黎明）, Zhuge Liang ordered his soldiers to shout and beat drums heavily to pretend an attack. But Zhuge and Lu Su only sat inside one boat drinking wine to enjoy themselves.

As soon as the Cao camp heard the shouting and drum beating, they mistook it for a surprise attack by the Zhou Yu camp. Since they could see nobody on the river, they had to order 3,000 soldiers to shoot arrows to stop the unexpected attack. The front of the scarecrows was quickly full of arrows. After a while, Zhuge Liang had his fleet turned around to get the other side of the scarecrows to face the Cao camp. When both sides were full of arrows, the day broke. Zhuge Liang ordered his soldiers to return. The soldiers shouted in excitement, “Thank you, Cao Cao, for your arrows.” After they got back to their camp, they collected more than 100,000 arrows in total from the scarecrows.

36．How many days did Zhuge Liang need to make 100,000 arrows?

A．One day. B．Two days. C．Three days. D．Ten days.

37．The underlined word “feet” probably means _________ in Chinese.

A．船帆 B．甲板 C．船浆 D．船队

38．Who created the idea to get the arrows?

A．Zhou Yu. B．Zhuge Liang. C．Lu Su. D．Cao Cao.

39．The soldiers in the Cao camp shot arrows because _________.

A．the Zhou Yu camp started an attack

B．they could see each other on the river

C．they mistook the shouting and beating for a surprise attack

D．Lu Su beat the drums

40．How did Zhou Yu probably feel after Zhuge Liang returned with over 100,000 arrows?

A．Surprised. B．Bored. C．Tired. D．Lonely.

四、任务型阅读（每小题2分，共10分）

（2022·浙江丽水·中考真题）

Tom是校英文报的一名编辑。请你阅读下面材料，帮助Tom完成任务。

Task 1: Choose one to complete the Editor’s Note.

Task 2: Choose proper names of jobs.

Task 3: Choose a proper picture for Robot Mechanic.

A．        B．      

  C．

Task 4: Design a title (标题) for the texts (not more than 5 words).

41．________

42．________

43．________

44．________

45．________

五、短文填空 （每小题1分，共10分）

（2022·湖北鄂州·中考真题）

根据下面短文内容，用括号内所给单词的正确形式填空，使短文完整、通顺。

Beep! Beep! Beep! The barcode（条形码）technology makes it faster and easier to buy things in stores. You have probably seen the black-and-white barcode on ___46___ (product) packaging（外包装）. In 2022, the great invention is 51 years old.

In 1971, an IBM engineer named George Laurer ___47___ (come) up with a code（代码）that could be printed on food packages. Then, a complete code system（系统）, the barcode was formed later. The system was used by many ___48___ (company) from 1973. Before this, shopkeepers had to ___49___ (record) prices by hand which took much time and energy.

Actually, a barcode is ___50___ (real) a simple idea: show each product’s information in different numbers（just like the ID card number）, then ___51___ (include) these numbers into a code and print it for computers to read. Today, barcodes are scanned（扫描）over six billion times every day and used by two ___52___ (million) companies.

What information does a barcode carry? Where the product comes from, ___53___ (it) price, production date…It can also help stores always ___54___ (know) about their products. For example, if there are 10 boxes of milk and a customer buys one, it will be recorded so that the store owner knows there are nine boxes _____55_____ (leave) on the shelf. In the 1980s, libraries started to use barcodes to follow their books in this way.

六、书面表达（共20分）

（2022·浙江湖州·中考真题）

假如你是李雷，上周参观了以“Working the Waste into Magic”为主题的环保作品展。请你根据以下信息，写一篇短文，在英语课上介绍相关展品并分享自己的想法与感受。

注意：

（1）短文须介绍至少两项展品，可适当发挥；

（2）文中不得出现真实姓名、学校等信息；

（3）词数：80—100。短文首句仅供参考，不计入总词数。Hello, everyone! I’d like to tell you something about the show “Working the Waste into Magic” . ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________