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Unit 8 第6课时Measures to prevent floods课后练习
一、单项选择
从 A、B、C、D 四个选项中，选出最佳答案
( ) 1. Flood is a kind of serious natural ______.
A. danger B. disaster C. accident D. trouble
( ) 2. We should keep ______ when we meet natural disasters.
A. calm B. excited C. shy D. lazy
( ) 3. The dam can ______ excess water on rainy days.
A. hold B. take C. carry D. bring
( ) 4. Many great ______ are built to stop floods all over the world.
A. games B. projects C. stories D. dreams
( ) 5. We must ______ our hometown from being flooded.
A. prevent B. save C. protect D. keep
( ) 6. The land near the sea is usually ______.
A. high B. low-lying C. dry D. dry
( ) 7. Dujiangyan can not only control floods but also ______ fields.
A. plant B. water C. irrigate D. grow
( ) 8. Don’t ______ the lift when an earthquake happens.
A. use B. make C. push D. pull
( ) 9. Ancient people dug many ______ to lead floodwater away.
A. mountains B. channels C. forests D. stones
( ) 10. The big flood made great ______ to houses and crops.
A. help B. change C. damage D. progress
二、用括号内所给单词的适当形式填空
We have many ways ________ (stop) floods.
Dayu ________ (guide) floodwater into the sea long ago.
This great project still ________ (work) well today.
It is important ________ (stay) safe in disasters.
Too much rain can cause serious ________ (flood).
People built strong banks ________ (protect) the city.
The old system has a history of two thousand ________ (year).
We should learn how ________ (keep) away from danger.
The gate can stop water from ________ (flow) into streets.
Floods may bring people many ________ (problem).
三、连词成句
1.safe, keep, can, projects, us
__________________________________________________________________________
2. built, many, people, dams, years, ago
__________________________________________________________________________
3. important, stay, it, calm, is, to
__________________________________________________________________________
4. floods, how, prevent, do, we
__________________________________________________________________________
5. still, works, Dujiangyan, today
__________________________________________________________________________
四、句型转换
按要求改写句子，每空一词
Dujiangyan controls floods and irrigates fields.（改为否定句）
Dujiangyan ______ ______ floods ______ irrigates fields.
The Thames Barrier is in London.（对划线部分提问）
______ ______ the Thames Barrier
People built the project many years ago.（改为被动语态）
The project ______ ______ many years ago.
We can protect our city by building dams.（对划线部分提问）
______ ______ we protect our city
Floods are very dangerous.（改为感叹句）
______ ______ floods they are!
五、句子改错
每句话均有一处错误，找出并改正
Flood do great harm to people’s life.
改为____________________________________________________
Dujiangyan is build thousands of years ago.
改为____________________________________________________
We should learn protect ourselves in disasters.
改为____________________________________________________
The dam can stop too many water flowing out.
改为____________________________________________________
Ancient people find good ways to fight floods.
改为____________________________________________________
六、完形填空
Floods are harmful natural disasters. They break houses and hurt people. To 1 floods, humans create many great water projects.
Dujiangyan is one of the oldest works in 2. It lies in Sichuan. It 3 floods and waters farmland. It has served people for over 2000 years.
In Britain, people set up the Thames Barrier. It stands across the river and 4 the big city from seawater flood.
The Netherlands faces much sea danger. Its famous Delta Works can 5 the sea water outside.
Long time ago, Dayu tried his best to solve flood 6. He did not block water, 7 dug channels to send water into the sea. His way finally 8 the serious flood problem.
Now more new projects are built. People learn to 9 with nature. We believe human wisdom can always 10 us safe in natural disasters.
( ) 1. A. cause B. prevent C. find
( ) 2. A. Japan B. America C. China
( ) 3. A. controls B. creates C. wastes
( ) 4. A. saves B. protects C. stops
( ) 5. A. keep B. take C. carry
( ) 6. A. question B. problem C. matter
( ) 7. A. and B. but C. so
( ) 8. A. solved B. answered C. made
( ) 9. A. talk B. fight C. live
( ) 10. A. leave B. keep C. let
七、根据短文内容，判断句子正误，正确填 T，错误填 F
Many ancient Chinese ways can help prevent floods.
Dayu was a great leader in ancient times. When big floods happened, he gave up blocking water. He opened many long channels to lead floodwater into big rivers and finally the sea. His method worked well and saved lots of people.
Ancient people also built thick dykes along rivers. The high banks can stop water from running out. Some old cities had hidden underground drains. They could take away rainwater quickly and avoid water gathering.
People also found that narrow river ways can speed up water flow. Fast water can wash away sand at the bottom of rivers. Less sand makes rivers deeper and hard to flood.
( ) 1. Dayu stopped floods by blocking water.
( ) 2. People built dykes along rivers to prevent floods.
( ) 3. Underground drains help take away rainwater.
( ) 4. Wide rivers can wash away river sand faster.
( ) 5. The passage talks about ancient Chinese flood control ways.
八、阅读短文，选择正确选项
Floods trouble human beings for thousands of years. People use wisdom to build different great projects to fight floods.
Dujiangyan is a fantastic old water project in Chengdu, China. People finished it more than 2200 years ago. It does not use high walls to block water. It makes good use of river landform to separate water, clear sand and stop floods. It also supplies water to farmland. Till now, it still works perfectly.
The Thames Barrier is a modern project in London. Lots of big steel gates stand on the river. When storm and high tide come, the gates rise up and stop water pouring into the city center. It has protected millions of people safely.
The Delta Works belongs to the Netherlands. Most land there is low and close to the sea. The whole project is made of dams and barriers. It successfully stops seawater from entering the land. It is famous around the world.
All these projects show that people can live peacefully with nature.
( ) 1. How old is Dujiangyan
A. Over 2200 years B. 2000 years C. Less than 2000 years
( ) 2. What is the feature of Dujiangyan
A. It has tall walls B. It uses natural river shape C. It is built for ships
( ) 3. What can the Thames Barrier do
A. Produce clean water B. Stop flood water into London C. Grow crops
( ) 4. Why does Netherlands build Delta Works
A. Much land is low-lying near sea B. There are many mountains
C. Too many rivers dry up
( ) 5. What is the main idea of the passage
A. How floods break cities B. Great flood prevention projects C. History of old buildings
九、阅读短文，完成选择与填空
The Three Gorges Dam is a world-famous water project in China. It stands on the Changjiang River in Hubei Province. It took workers many years to finish this huge project.
The dam plays an important role in flood control. In rainy seasons, it stores extra river water. When the weather is dry, it releases water slowly. It greatly cuts down flood risks and protects thousands of people and villages nearby. Besides stopping floods, the dam also provides plenty of clean electric power for our country. It also helps improve water transportation along the great river.
选择填空
( ) 1. Where is the Three Gorges Dam
A. In Sichuan B. In Hubei C. In London
( ) 2. What is the main duty of the dam
A. Control floods B. Grow crops C. Catch fish
短文填空，每空一词
The Three Gorges Dam lies on the ______ River.
The dam can store extra water in ______ days.
It can offer clean ______ to people all over China.
十、书面表达
以 My Favorite Flood-prevention Project 为题，写一篇英语短文
提示：1. 介绍工程名称与所在地点
2. 阐述工程起到的作用
3. 谈谈它带来的价值与意义
要求：词数 80 词左右，语句通顺，语法无误
____________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
一、单项选择
1.B 解析：natural disaster 自然灾害
2.A 解析：keep calm 保持冷静
3.A 解析：hold excess water 蓄积多余水量
4.B 解析：great projects 大型工程
5.C 解析：protect...from... 保护…… 免受伤害
6.B 解析：low-lying 地势低洼的
7.C 解析：irrigate fields 灌溉农田
8.A 解析：use the lift 乘坐电梯
9.B 解析：channels 水道，沟渠
10.C 解析：make damage to 对…… 造成损害
二、用括号内所给单词的适当形式填空
1.to stop 解析：ways to do sth. 做某事的方法
2.guided 解析：long ago 用一般过去时
3.works 解析：一般现在时，主语三单
4.to stay 解析：It is +adj.+to do sth.
5.floods 解析：可数名词复数，泛指洪水灾害
6.to protect 解析：不定式表目的
7.years 解析：two thousand 后接名词复数
8.to keep 解析：how to do sth.
9.flowing 解析：stop...from doing sth.
10.problems 解析：many 后接可数名词复数
三、连词成句
1.Projects can keep us safe.
2.People built many dams years ago.
3.It is important to stay calm.
4.How do we prevent floods
5.Dujiangyan works still today.
四、句型转换
1.doesn't control; or
解析：主语三单，否定句用 doesn't，and 改为 or
2.Where is
解析：对地点提问用 where
3.was built
解析：一般过去时被动语态
4.How can
解析：对方式提问用 how
5.What dangerous
解析：what 引导感叹句，后接名词短语
五、句子改错
1.do → does
解析：主语 flood 单数，谓语动词用三单
2.build → built
解析：一般过去时被动 be done
3.protect → to protect
解析：learn to do sth. 学习做某事
4.many → much
解析：water 不可数，用 much 修饰
5.find → found
解析：远古的事，用一般过去时
六、完形填空
1.B 2.C 3.A 4.B 5.A
6.B 7.B 8.A 9.C 10.B
解析：
1.prevent floods 防洪
2. 都江堰在中国
3.control floods 控制洪水
4.protect...from 防护
5.keep...outside 阻挡在外
6.flood problem 洪水问题
7.but 表转折，堵水改为疏导
8.solve problem 解决问题
9.live with nature 与自然共处
10.keep sb. safe 保障安全
七、判断正误
1.F 2.T 3.T 4.F 5.T
解析：
1. 大禹以疏导治水，并非堵水
2. 修建堤坝防洪表述正确
3. 地下沟渠可快速排雨水
4. 狭窄河道流速更快，宽河道不符
5. 文章讲述中国古代防洪办法
八、阅读理解（选择）
1.A 2.B 3.B 4.A 5.B
解析：
1. 都江堰距今两千两百多年
2. 都江堰依托天然河道地势治水
3. 泰晤士河屏障阻挡洪水涌入伦敦
4. 荷兰地势低洼，临海易遭海水侵袭
5. 文章主旨介绍世界著名防洪工程
九、阅读选择 + 填空
1.B 2.A
3.Changjiang
4.rainy
5.power
解析：
1. 三峡大坝位于湖北省
2. 核心作用为防洪
3. 坐落于长江之上
4. 雨季蓄积多余水量
5. 提供清洁电力
十、书面表达 参考范文
My Favorite Flood-prevention Project
My favourite flood-prevention project is Dujiangyan. It lies in Chengdu, Sichuan. It was built more than 2200 years ago.
It is a great ancient water project. It can not only control floods but also irrigate farmland. It protects local people and land all the time.
Dujiangyan shows great wisdom of ancient Chinese people. It still works well today and brings great advantages to people. We are proud of this amazing project.
基础巩固
能力运用
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