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Unit 8 第4课时Natural disasters are dangerous!课后练习
一、短文选词填空
从方框中选择适当单词，用其正确形式填空，每词限用一次
calm, natural, protect, spread, heavy, safe, help, fall, danger, save
Typhoons, floods and wildfires are all ______ disasters. They can bring great ______ to people. In 2025, a 6.8 magnitude earthquake hit Xizang. Many houses ______ down. Rescuers worked day and night ______ people. When disasters come, we must stay ______. Big fires ______ fast in forests. We should run to ______ places. Learning safety skills can ______ us. People and soldiers work together ______ our homes.
二、单项选择
( )1. Typhoons are strong storms ______ powerful winds.
A. with B. for C. by D. from
( )2. Floods usually happen ______ there is heavy rain for days.
A. because B. though C. if D. but
( )3. Serious wildfires can ______ great harm to the environment.
A. make B. do C. take D. give
( )4. The wind speed of the typhoon can ______ 252 km/h.
A. reach B. get C. arrive D. go
( )5. Soldiers tried their best to ______ people from floods.
A. save B. hurt C. drop D. catch
( )6. It’s not safe ______ near rushing water.
A. play B. to play C. playing D. played
( )7. Keep ______ when you meet natural disasters.
A. calm B. excited C. bored D. shy
( )8. The big fire ______ fast last summer.
A. spread B. spreads C. spreaded D. is spread
( )9. Floods may destroy farms, buildings ______ roads.
A. and B. but C. or D. so
( )10. You ______ stay indoors when a typhoon comes.
A. should B. can C. may D. might
三、用所给单词的适当形式填空
1. We can see ______ winds in typhoons. (power)
2. Heavy floods always ______ farmland every year. (damage)
3. People pay attention to stopping dangerous ______. (fire)
4. Many houses ______ by the flood last month. (ruin)
5. The wind ______ wildly when the typhoon arrived. (blow)
6. It’s necessary ______ calm in disasters. (keep)
7. The wildfire ______ and polluted the air. (spread)
8. Everyone must run to ______ places in a flood. (high)
9. The typhoon ______ heavy rain last weekend. (bring)
10. Workers ______ villagers in the flood. (protect)
四、单句改错
每句只有一处错误，圈出并改正
1. A typhoon are a kind of natural disaster. __________ → __________
2. Floods damage farm, houses and roads. __________ → __________
3. If a wildfire happen, leave at once. __________ → __________
4. The fire spread fast and pollute clean air. __________ → __________
5. Stay away from dangerous flame. __________ → __________
五、句型转换
1. Typhoons form because warm sea water meets special winds.
______ ______ typhoons form
2. Strong winds break many trees.
Many trees ______ ______ by strong winds.
3. Wildfires bring danger to living things.
______ wildfires ______ danger to living things
4. We must stay indoors when a typhoon comes.
______ ______ we do when a typhoon comes
5. Floods cover large areas with water.
Large areas ______ ______ by water in floods.
六、连词成句
注意大小写与标点
1. warm, water, wind, when, meet, typhoons, form
____________________________________________________________________
2. heavy, rain, floods, too, much, causes
____________________________________________________________________
3. wildfires, animals, can, badly, hurt
____________________________________________________________________
4. should, we, indoors, stay, typhoon, arrives, when
____________________________________________________________________
5. move, people, flood, to, ground, higher, facing
____________________________________________________________________
七、完形填空
Natural disasters happen from time to time. Typhoons, floods and wildfires are common disasters in China.
Typhoons come into being 1_______ warm ocean water meets special winds. Strong wind and heavy rain come together. The wind can 2_______ trees down, damage buildings and cause floods.
Floods happen after 3_______ heavy rain. In 2025, heavy rain hit northern China. Many people 4_______ their homes. Soldiers helped people move to 5 _______places.
Wildfires are big fires. In 2022, big fires 6_______ out in Chongqing. Thousands of people7_______ together to fight the fires. They were 8_______.
When disasters come, 9_______calm. We can learn safety skills. People and the government work together to 10_______losses.
( )1. A. when B. though C. so D. but
( )2. A. fall B. blow C. grow D. put
( )3. A. short B. light C. heavy D. little
( )4. A. lost B. found C. built D. left
( )5. A. lower B. higher C. colder D. hotter
( )6. A. broke B. took C. went D. got
( )7. A. worked B. played C. studied D. sang
( )8. A. lazy B. brave C. shy D. weak
( )9. A. keep B. make C. let D. turn
( )10. A. increase B. reduce C. forget D. know
八、阅读理解，选择正确的选项。
On Jan 7, 2025, a 6.8 magnitude earthquake hit Dingri, Xizang. Many houses fell down. People were scared. But help came quickly. Within 10 minutes, rescue drones flew over the area. In 30 minutes, rescue teams arrived. Soldiers and workers built many tents. They gave people food, water and warm clothes. By Jan 13, over 47,000 people had safe places to live. The earthquake was terrible, but people helped each other.
( )1. When did the earthquake happen
A. Jan 7, 2025 B. Jan 13, 2025 C. July 7, 2025
( )2. Where did it hit
A. Beijing B. Dingri, Xizang C. Chongqing
( )3. What did rescuers build for people
A. Hospitals B. Tents C. Schools
( )4. Which word can describe people in the accident
A. lonely B. helpful C. careless
( )5. How many people got safe places by Jan 13
A. Over 47000 B. Under 47000 C. More than 57000
九、阅读理解，完成阅读任务。
In August 2022, big wildfires broke out in Chongqing. The weather was very hot and dry. The fires spread fast in the mountains. Many trees and forests were burned. Over 5,000 firefighters, police and volunteers went there. They worked day and night. It was hard because of high heat and changing winds. But they did not give up. They saved many people’s homes. By late August, they put out all the fires. Chongqing people were brave and united.
( )1. When did the wildfires happen
A. 2025 B. 2022 C. 2018
( )2. Where did they break out
A. Chongqing B. Beijing C. Xizang
( )3. Who helped fight the fires
A. Firefighters and volunteers B. Students and teachers C. Farmers and doctors
( )4. Why was it hard to fight the fires
______________________________________________________________________
5. All the fires were put out in ______ August.
十、书面表达
请以 A Terrible Natural Disaster 为题，写一篇短文
内容介绍一种自然灾害，说明相关危害，写出自救建议
行文通顺，语法规范，词数 80 至 100
____________________________________________________________________________
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
参考答案
一、短文选词填空
natural
danger
fell
to save
calm
spread
safe
help
to protect
解析
natural disasters 自然灾害
great danger 巨大危险
事情发生在过去，fall 过去式 fell
不定式表目的，日夜营救群众
stay calm 保持冷静
火势蔓延，时态统一用过去式 spread
safe places 安全区域
情态动词 can 后接动词原形
不定式表目的，守护家园
二、单项选择
1.A 2.A 3.B 4.A 5.A
6.B 7.A 8.A9.A10.A
解析
with 表带有，狂风暴雨
because 引导原因状语从句
do harm to 固定搭配，对…… 造成伤害
reach 达到（速度、数值）
save people 救助民众
It’s +adj.+to do sth. 固定句型
keep calm 保持镇定
spread 过去式不变
and 并列并列名词
should 应该，表建议
三、用所给单词的适当形式填空
powerful
damage
fires
were ruined
blew
to keep
spread
higher
brought
protected
解析
形容词修饰名词 winds
一般现在时，主语复数用原形
泛指火灾用复数
一般过去时被动语态
过去式 blow—blew
固定句型不定式用法
过去式 spread 不变
更高处，用比较级
bring 过去式 brought
动作发生在过去，用过去式
四、单句改错
are → is 主语单数，be 动词用 is
farm → farms 泛指农田用复数
happen → happens 主语单数，谓语三单
pollute → polluted 并列时态统一过去式
flame → flames flame 表火焰常用复数
五、句型转换
How do
are broken
Do; bring
What should
are covered
解析
询问成因用 how
一般现在时被动语态
实义动词一般疑问句助动词 do
询问行为动作用 what
被动语态，被洪水覆盖
六、连词成句
Typhoons form when warm water meets wind.
Too much heavy rain causes floods.
Wildfires can badly hurt animals.
We should stay indoors when typhoon arrives.
People move to higher ground facing flood.
七、完形填空
1.A 2.B 3.C 4.A 5.B
6.A 7.A 8.B 9.A 10.B
解析
when 引导时间状语从句
blow down 吹倒
heavy rain 大雨
lose homes 失去家园
洪水往高处撤离
break out 爆发
work together 齐心协力
消防员勇敢无畏
keep calm 保持冷静
reduce losses 减少损失
八、阅读理解
1.A 2.B 3.B 4.B 5.A
解析
地震发生时间 2025 年 1 月 7 日
震区位于西藏定日
救援人员搭建帐篷安置群众
灾难中人们互帮互助，乐于助人
超 47000 人获得安全住所
九、阅读理解
1.B 2.A 3.A
4. Because of high heat and changing winds.
5. late
解析
山火爆发于 2022 年 8 月
火灾发生在重庆
消防员、警察与志愿者参与救火
高温与风向多变加大救火难度
八月下旬明火全部扑灭
十、书面表达 参考范文
A Terrible Natural Disaster
Flood is a terrible natural disaster. It usually comes after heavy rain and makes rivers overflow.
Floods bring much harm. They destroy farmland, houses and roads. Many people may lose their homes and get hurt.
When flood comes, we must stay calm. We should quickly move to higher safe places. Never walk or play in flood water. Learning self-protection knowledge can help us stay safe.
基础巩固
能力运用
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