资源简介

中小学教育资源及组卷应用平台
Unit 6 When disaster strikes
（Developing ideas）
一、单词拼写
根据课文首字母提示，写出单词正确形式
1.China has complete disaster w______ systems to protect all citizens.
2.The government sends warning m______ to people’s mobile phones ahead of storms.
3.Loud a______ in communities will go off when bad weather is coming.
4.Tilly Smith s______ thousands of lives by recognizing tsunami signs on the beach.
5.At school, she learnt the s______ of a tsunami two weeks before the disaster.
6.When the sea moved back far away, Tilly sensed d______ and warned tourists at once.
7.All visitors ran to a high h______ building to stay away from the huge waves.
8.The safety Net app can give clear a______ on how to escape different natural disasters.
9.D______ can take photos after disasters to help rescue teams look for survivors.
10.The warning time for storms in China has i______ to 42 minutes, over 90% accurate.
二、单项选择
1.China is one of the countries ______ complete disaster warning systems.
A. have B. with C. for D. at
2.Officials can warn people ______ text messages, TV and online notices.
A. by B. in C. with D. through
3.Loud alarms will go ______ to remind people of coming natural disasters.
A. out B. off C. up D. on
4.Tilly Smith knew the sea moving back was a sign ______ a tsunami.
A. for B. of C. to D. with
5.She learnt tsunami knowledge ______ a school lesson two weeks earlier.
A. in B. at C. on D. for
6.Tilly warned all visitors ______ the danger, so they left the coast quickly.
A. about B. for C. with D. to
7.People ran to a tall building ______ they could keep safe from big waves.
A. so that B. in order to C. such that D. so as to
8.That short geography lesson saved about one t______ lives in total.
A. thousand B. thousands C. thousand’s D. thousands’
9.The Safety Net app shows your exact area and lets you ______ your location.
A. share B. sharing C. shared D. to share
10.The app tells you how ______ the coming disaster might be.
A. danger B. dangerous C. dangerously D. endanger
11.It also offers advice ______ safe places to hide during disasters.
A. on B. in C. at D. for
12.Drones can take photos ______ show the damage after earthquakes or floods.
A. to B. for C. of D. with
13.They send useful information ______ emergency rescue teams.
A. at B. to C. with D. for
14.We can learn disaster self-help skills ______ warning apps and school classes.
A. from B. by C. with D. through
15.More than 90% of China’s storm warning information ______ correct now.
A. is B. are C. was D. were
三、完成句子
每空一词，根据中文完成句子
1.中国拥有完善的灾害预警体系，通过短信、电视和网络通知预警民众。
China has disaster warning systems and warns people ______ text messages, TV and ______ notices.
2.蒂莉 史密斯在海滩察觉到海啸前兆，及时提醒游客避险，挽救上千生命。
Tilly sensed tsunami signs on the beach and ______ visitors of the danger, saving about one ______ lives.
3.安全网 APP 会预警灾害，告知灾害危险程度，并给出避险地点建议。
The Safety Net app warns you of disasters, tells how dangerous they are and gives advice ______ safe places to ______.
4.无人机可拍摄灾害现场画面，向救援队伍传递信息，搜寻幸存者。
Drones take photos of disaster areas to send info ______ emergency teams and ______ survivors.
5.我国风暴预警时长提升至 42 分钟，预警准确率超九成。
The warning time for storms has increased to 42 minutes, with more than 90% ______ being ______.
四、完形填空
Disaster warning systems are necessary for every country, and China has built a complete one. The government can send early warnings 1.______ three ways: mobile text messages, TV news and online platform notices. In every community, loud alarm machines will 2.______ when storms or floods are on the way. Now the warning time for storms has been made longer to 42 minutes, and over 90% of the warning information is right.
Tilly Smith’s story tells us how important disaster knowledge is. When a tsunami hit a coastal town, the 12-year-old girl noticed the sea draw far back. She remembered the tsunami 3.______ she learnt in geography class two weeks before. She quickly told tourists around her about the hidden 4.______. All people followed her advice and ran to a tall building far from the beach. That simple school lesson saved around one thousand people’s 5.______.
Now we also have useful digital tools like the Safety Net mobile app. The app first shows your living area and allows you to 6.______ your position with family. Its alert function reminds you of coming disasters and explains how serious the situation will be. It also lists clear advice: where to hide safely and how to get away 7.______ danger. It covers many kinds of natural disasters, including wildfires, floods, typhoons and earthquakes.
Besides warning apps, drones are another life-saving technology. After disasters break out, drones fly over broken areas to take videos and photos. They send clear pictures 8.______ rescue workers, helping them find missing survivors and send food or medicine fast.
Warnings, school lessons and high-tech tools all help us stay safe. If we master basic disaster signs and self-help skills, we won’t be helpless when disaster 9.______. Everyone should learn to pay attention to official warnings and pass on disaster knowledge 10. ______ people around them.
1.in B. through C. at D. for
2.go off B. go out C. go up D. go on
3.signs B. stories C. rules D. news
4.safe B. risk C. danger D. surprise
5.life B. lives C. living D. live
6.share B. shared C. sharing D. to share
7.to B. for C. from D. off
8.at B. to C. with D. on
9.strike B. strikes C. striking D. struck
10.help B. save C. warn D. teach
五、阅读理解
Passage 1 Tilly Smith and the tsunami warning
Tilly Smith was only 12 years old when she saved about 1,000 people’s lives in a coastal tsunami disaster.
Two weeks before the trip to the seaside, her geography teacher taught the class clear tsunami warning signs in school. One key sign is that seawater will suddenly move far back from the beach, leaving lots of sea animals on the sand. This strange scene means a huge wave will rush toward land very soon.
When Tilly saw the sea pulling back on the beach, she immediately realized the hidden danger. She tried her best to warn all tourists on the coast. Many visitors did not understand at first, but Tilly kept explaining what she had learnt at school. Finally, all people left the beach and ran to a high multi-storey building far away from the sea.
Minutes later, a big tsunami hit the coast. The beach was completely covered by seawater. Thanks to Tilly’s quick reaction and the geography lesson, almost no one in that group lost their life. People say that simple school lesson became a life-saving warning for hundreds of travellers.
1.How old was Tilly Smith when the tsunami happened
A. 10 B. 12 C. 14 D. 16
2.Where did Tilly learn tsunami signs before the trip
A. On warning mobile apps
B. From TV disaster news
C. In her geography class at school
D. From coastal community alarms
3.What is the special early sign of a tsunami mentioned in the text
A. Dark black clouds cover the sky
B. The sea suddenly moves far back from the shore
C. Loud alarm machines ring in towns
D. Strong wind blows down trees on beaches
4.Where did all the tourists run to for safety
A. A tall building far from the beach
B. A small shop beside the sea
C. A school classroom near the coast
D. A boat floating on the sea
5.What is the main idea of this passage
A. China’s disaster warning system works very well
B. A 12-year-old girl used tsunami knowledge to save many people
C. Mobile apps can send early warnings of all natural disasters
D. Drones help rescue teams search for missing people after tsunamis
Passage 2
China has built a complete national disaster warning system to reduce loss from natural disasters.
First, the government uses three main ways to send early warnings to every citizen: mass text messages on phones, special disaster TV programmes and public online notice platforms. In all residential communities, loud alarm devices are set up. These alarms will go off loudly once dangerous weather or geological disasters are predicted.
For storm warnings, scientists have extended the warning lead time to 42 minutes, and the accuracy rate of warning information is higher than 90%.
Besides national public warning systems, digital tools also help people stay safe. The Safety Net mobile application is a typical example. It can show users’ exact location, allow location sharing with family, send disaster alerts and judge the danger level of coming disasters. It also provides clear self-help advice: safe hiding places and ways to escape from risk. It covers typhoons, floods, wildfires, earthquakes and tsunamis.
Drones are another useful life-saving technology. After disasters happen, drones fly over damaged areas to take photos and videos. They deliver real-time disaster information to emergency rescue teams, help find trapped survivors and transport necessary supplies like medicine and food.
Disaster warnings, school disaster education and high-tech rescue tools all work together to protect people’s safety when natural disasters strike.
6. How many ways does the Chinese government use to send disaster warnings
A. Two B. Three C. Four D. Five
7. What can we know about China’s storm warning system
A. Warning time is less than 10 minutes
B. Less than half of warning messages are correct
C. Storm warning lead time is 42 minutes with over 90% accuracy
D. Alarms only work for earthquakes and tsunamis
8. What function does the Safety Net app NOT have
A. Showing users’ real-time position
B. Sharing location with family members
C. Sending early disaster alerts
D. Controlling community alarm machines
9. What do drones do after natural disasters
A. Send text warnings to all local people
B. Take pictures and send data to rescue teams
C. Give geography lessons to students about tsunamis
D. Fix broken alarm devices in towns
10. What is the main topic of Passage 2
A. The story of Tilly Smith saving tourists
B. China’s disaster warning system and related safety tech
C. Different kinds of natural disasters around the world
D. How students learn disaster knowledge at school
参考答案与详细解析
一、单词拼写
1.warning
解析：disaster warning systems 灾害预警体系，warning 作定语
2.messages
解析：text messages 短信，复数表多条预警短信
3.alarms
解析：loud alarms 警报器，复数泛指社区各类警报装置
4.saved
解析：全文过去时态，save lives 挽救生命
5.signs
解析：tsunami signs 海啸前兆、征兆
6.danger
解析：sense danger 察觉到危险，不可数名词
7.high
解析：high building 高楼，远离海浪避险
8.advice
解析：give advice 给出避险建议，不可数名词
9.Drones
解析：drone 无人机，句首大写，复数表一类设备
10.increased
解析：increase to 提升至，过去分词构成现在完成时
二、单项选择
1.B
解析：with 带有、配备，拥有完整预警体系
2.D
解析：through 通过（渠道、媒介），通过短信、电视预警民众
3.B
解析：go off 警报响起，固定短语
4.B
解析：a sign of …… 的征兆、迹象，固定搭配
5.B
解析：at a school lesson 在一堂学校课堂上
6.A
解析：warn sb. about sth. 提醒某人某事、告知某人危险
7.A
解析：so that + 完整从句，表目的 “以便能够避险”；in order to 后接动词原形
8.A
解析：one thousand lives 一千条生命，thousand 前有数字不加 s
9.A
解析：let sb. do sth. 动词原形 share
10.B
解析：how dangerous 多么危险，be 动词后用形容词
11.A
解析：advice on sth. 关于某事的建议
12.A
解析：to take 不定式表目的，拍照用来展示灾情
13.B
解析：send information to sb. 向某人传递信息
14.A
解析：learn...from... 从…… 学到防灾知识
15.A
解析：information 不可数名词，一般现在时用 is
三、完成句子
1.through; online
解析：through 媒介渠道；online notices 线上公告
2.warned; thousand
解析：warned 过去式；one thousand 一千
3.on; hide
解析：advice on safe places；to hide 躲藏避险
4.to; find
解析：send info to rescue teams；find survivors 搜寻幸存者
5.accuracy; correct
解析：90% accuracy 准确率九成；being correct 准确无误
四、完形填空
解析：
1.B through 借助三种渠道发布预警
2.A go off 警报响起固定搭配
3.A tsunami signs 海啸前兆
4.C hidden danger 潜藏的危险
5.B lives 生命，复数，一千人的生命
6.A let 后接动词原形 share
7.C get away from danger 远离危险固定搭配
8.B send sth. to sb. 向救援队伍传送影像
9.B 一般现在时，disaster 单数 strikes
10.D teach people knowledge 向身边人传授防灾知识
五、阅读理解
Passage 1
1.B 原文 The 12-year-old girl Tilly Smith
2.C Two weeks before the trip, her geography teacher taught...
3.B One key sign is that seawater will suddenly move far back from the beach
4.A all people left the beach and ran to a high multi-storey building
5.B 全文围绕 12 岁女孩运用课堂海啸知识挽救游客生命展开
Passage 2
6.B three main ways: text messages, TV, online notices 三种渠道
7.C Now the warning time for storms has been made longer to 42 minutes, and over 90% of the warning information is right.
8.D 文中未提及app可操控社区警报器，其余三项均为app功能
9.Drones fly over damaged areas to take photos and videos. They deliver real-time disaster information to emergency rescue teams
10.B 段落介绍中国灾害预警体系、预警渠道、安全APP、无人机防灾技术
21世纪教育网(www.21cnjy.com)中小学教育资源及组卷应用平台
Unit 6 When disaster strikes
（Developing ideas）
一、单词拼写
根据课文首字母提示，写出单词正确形式
1.China has complete disaster w______ systems to protect all citizens.
2.The government sends warning m______ to people’s mobile phones ahead of
storms.
3.Loud a______ in communities will go off when bad weather is coming.
4.Tilly Smith s______ thousands of lives by recognizing tsunami signs on the beach.
5.At school, she learnt the s______ of a tsunami two weeks before the disaster.
6.When the sea moved back far away, Tilly sensed d______ and warned tourists at
once.
7.All visitors ran to a high h______ building to stay away from the huge waves.
8.The safety Net app can give clear a______ on how to escape different natural
disasters.
9.D______ can take photos after disasters to help rescue teams look for survivors.
10.The warning time for storms in China has i______ to 42 minutes, over 90%
accurate.
二、单项选择
1.China is one of the countries ______ complete disaster warning systems.
A. have B. with C. for D. at
2.Officials can warn people ______ text messages, TV and online notices.
A. by B. in C. with D. through
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
3.Loud alarms will go ______ to remind people of coming natural disasters.
A. out B. off C. up D. on
4.Tilly Smith knew the sea moving back was a sign ______ a tsunami.
A. for B. of C. to D. with
5.She learnt tsunami knowledge ______ a school lesson two weeks earlier.
A. in B. at C. on D. for
6.Tilly warned all visitors ______ the danger, so they left the coast quickly.
A. about B. for C. with D. to
7.People ran to a tall building ______ they could keep safe from big waves.
A. so that B. in order to C. such that D. so as to
8.That short geography lesson saved about one t______ lives in total.
A. thousand B. thousands C. thousand’s D. thousands’
9.The Safety Net app shows your exact area and lets you ______ your location.
A. share B. sharing C. shared D. to share
10.The app tells you how ______ the coming disaster might be.
A. danger B. dangerous C. dangerously D. endanger
11.It also offers advice ______ safe places to hide during disasters.
A. on B. in C. at D. for
12.Drones can take photos ______ show the damage after earthquakes or floods.
A. to B. for C. of D. with
13.They send useful information ______ emergency rescue teams.
A. at B. to C. with D. for
14.We can learn disaster self-help skills ______ warning apps and school classes.
A. from B. by C. with D. through
15.More than 90% of China’s storm warning information ______ correct now.
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
A. is B. are C. was D. were
三、完成句子
每空一词，根据中文完成句子
1.中国拥有完善的灾害预警体系，通过短信、电视和网络通知预警民众。
China has disaster warning systems and warns people ______ text messages, TV and
______ notices.
2.蒂莉 史密斯在海滩察觉到海啸前兆，及时提醒游客避险，挽救上千生命。
Tilly sensed tsunami signs on the beach and ______ visitors of the danger, saving
about one ______ lives.
3.安全网 APP会预警灾害，告知灾害危险程度，并给出避险地点建议。
The Safety Net app warns you of disasters, tells how dangerous they are and gives
advice ______ safe places to ______.
4.无人机可拍摄灾害现场画面，向救援队伍传递信息，搜寻幸存者。
Drones take photos of disaster areas to send info ______ emergency teams and
______ survivors.
5.我国风暴预警时长提升至 42分钟，预警准确率超九成。
The warning time for storms has increased to 42 minutes, with more than 90%
______ being ______.
四、完形填空
Disaster warning systems are necessary for every country, and China has built a
complete one. The government can send early warnings 1.______ three ways: mobile
text messages, TV news and online platform notices. In every community, loud alarm
machines will 2.______ when storms or floods are on the way. Now the warning time
for storms has been made longer to 42 minutes, and over 90% of the warning
information is right.
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
Tilly Smith’s story tells us how important disaster knowledge is. When a tsunami hit a
coastal town, the 12-year-old girl noticed the sea draw far back. She remembered the
tsunami 3.______ she learnt in geography class two weeks before. She quickly told
tourists around her about the hidden 4.______. All people followed her advice and ran
to a tall building far from the beach. That simple school lesson saved around one
thousand people’s 5.______.
Now we also have useful digital tools like the Safety Net mobile app. The app first
shows your living area and allows you to 6.______ your position with family. Its alert
function reminds you of coming disasters and explains how serious the situation will
be. It also lists clear advice: where to hide safely and how to get away 7.______
danger. It covers many kinds of natural disasters, including wildfires, floods,
typhoons and earthquakes.
Besides warning apps, drones are another life-saving technology. After disasters break
out, drones fly over broken areas to take videos and photos. They send clear pictures
8.______ rescue workers, helping them find missing survivors and send food or
medicine fast.
Warnings, school lessons and high-tech tools all help us stay safe. If we master basic
disaster signs and self-help skills, we won’t be helpless when disaster 9.______.
Everyone should learn to pay attention to official warnings and pass on disaster
knowledge 10. ______ people around them.
1.in B. through C. at D. for
2.go off B. go out C. go up D. go on
3.signs B. stories C. rules D. news
4.safe B. risk C. danger D. surprise
5.life B. lives C. living D. live
6.share B. shared C. sharing D. to share
7.to B. for C. from D. off
8.at B. to C. with D. on
9.strike B. strikes C. striking D. struck
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
10.help B. save C. warn D. teach
五、阅读理解
Passage 1 Tilly Smith and the tsunami warning
Tilly Smith was only 12 years old when she saved about 1,000 people’s lives in a
coastal tsunami disaster.
Two weeks before the trip to the seaside, her geography teacher taught the class clear
tsunami warning signs in school. One key sign is that seawater will suddenly move far
back from the beach, leaving lots of sea animals on the sand. This strange scene
means a huge wave will rush toward land very soon.
When Tilly saw the sea pulling back on the beach, she immediately realized the
hidden danger. She tried her best to warn all tourists on the coast. Many visitors did
not understand at first, but Tilly kept explaining what she had learnt at school. Finally,
all people left the beach and ran to a high multi-storey building far away from the sea.
Minutes later, a big tsunami hit the coast. The beach was completely covered by
seawater. Thanks to Tilly’s quick reaction and the geography lesson, almost no one in
that group lost their life. People say that simple school lesson became a life-saving
warning for hundreds of travellers.
1.How old was Tilly Smith when the tsunami happened
A. 10 B. 12 C. 14 D. 16
2.Where did Tilly learn tsunami signs before the trip
A. On warning mobile apps
B. From TV disaster news
C. In her geography class at school
D. From coastal community alarms
3.What is the special early sign of a tsunami mentioned in the text
A. Dark black clouds cover the sky
B. The sea suddenly moves far back from the shore
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
C. Loud alarm machines ring in towns
D. Strong wind blows down trees on beaches
4.Where did all the tourists run to for safety
A. A tall building far from the beach
B. A small shop beside the sea
C. A school classroom near the coast
D. A boat floating on the sea
5.What is the main idea of this passage
A. China’s disaster warning system works very well
B. A 12-year-old girl used tsunami knowledge to save many people
C. Mobile apps can send early warnings of all natural disasters
D. Drones help rescue teams search for missing people after tsunamis
Passage 2
China has built a complete national disaster warning system to reduce loss from
natural disasters.
First, the government uses three main ways to send early warnings to every citizen:
mass text messages on phones, special disaster TV programmes and public online
notice platforms. In all residential communities, loud alarm devices are set up. These
alarms will go off loudly once dangerous weather or geological disasters are predicted.
For storm warnings, scientists have extended the warning lead time to 42 minutes, and
the accuracy rate of warning information is higher than 90%.
Besides national public warning systems, digital tools also help people stay safe. The
Safety Net mobile application is a typical example. It can show users’ exact location,
allow location sharing with family, send disaster alerts and judge the danger level of
coming disasters. It also provides clear self-help advice: safe hiding places and ways
to escape from risk. It covers typhoons, floods, wildfires, earthquakes and tsunamis.
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
Drones are another useful life-saving technology. After disasters happen, drones fly
over damaged areas to take photos and videos. They deliver real-time disaster
information to emergency rescue teams, help find trapped survivors and transport
necessary supplies like medicine and food.
Disaster warnings, school disaster education and high-tech rescue tools all work
together to protect people’s safety when natural disasters strike.
6. How many ways does the Chinese government use to send disaster warnings
A. Two B. Three C. Four D. Five
7. What can we know about China’s storm warning system
A. Warning time is less than 10 minutes
B. Less than half of warning messages are correct
C. Storm warning lead time is 42 minutes with over 90% accuracy
D. Alarms only work for earthquakes and tsunamis
8. What function does the Safety Net app NOT have
A. Showing users’ real-time position
B. Sharing location with family members
C. Sending early disaster alerts
D. Controlling community alarm machines
9. What do drones do after natural disasters
A. Send text warnings to all local people
B. Take pictures and send data to rescue teams
C. Give geography lessons to students about tsunamis
D. Fix broken alarm devices in towns
10. What is the main topic of Passage 2
A. The story of Tilly Smith saving tourists
B. China’s disaster warning system and related safety tech
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
C. Different kinds of natural disasters around the world
D. How students learn disaster knowledge at school
参考答案与详细解析
一、单词拼写
1.warning
解析：disaster warning systems灾害预警体系，warning作定语
2.messages
解析：text messages短信，复数表多条预警短信
3.alarms
解析：loud alarms警报器，复数泛指社区各类警报装置
4.saved
解析：全文过去时态，save lives挽救生命
5.signs
解析：tsunami signs海啸前兆、征兆
6.danger
解析：sense danger察觉到危险，不可数名词
7.high
解析：high building高楼，远离海浪避险
8.advice
解析：give advice给出避险建议，不可数名词
9.Drones
解析：drone无人机，句首大写，复数表一类设备
10.increased
21 世纪教育网(www.21cnjy.com)
中小学教育资源及组卷应用平台
解析：increase to提升至，过去分词构成现在完成时
二、单项选择
1.B
解析：with带有、配备，拥有完整预警体系
2.D
解析：through通过（渠道、媒介），通过短信、电视预警民众
3.B
解析：go off警报响起，固定短语
4.B
解析：a sign of ……的征兆、迹象，固定搭配
5.B
解析：at a school lesson在一堂学校课堂上
6.A
解析：warn sb. about sth.提醒某人某事、告知某人危险
7.A
解析：so that +完整从句，表目的 “以便能够避险”；in order to后接动词原形
8.A
解析：one thousand lives一千条生命，thousand前有数字不加 s
9.A
解析：let sb. do sth.动词原形 share
10.B
解析：how dangerous多么危险，be动词后用形容词
11.A
解析：advice on sth.关于某事的建议
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中小学教育资源及组卷应用平台
12.A
解析：to take不定式表目的，拍照用来展示灾情
13.B
解析：send information to sb.向某人传递信息
14.A
解析：learn...from...从……学到防灾知识
15.A
解析：information不可数名词，一般现在时用 is
三、完成句子
1.through; online
解析：through媒介渠道；online notices线上公告
2.warned; thousand
解析：warned过去式；one thousand一千
3.on; hide
解析：advice on safe places；to hide躲藏避险
4.to; find
解析：send info to rescue teams；find survivors搜寻幸存者
5.accuracy; correct
解析：90% accuracy准确率九成；being correct准确无误
四、完形填空
解析：
1.B through借助三种渠道发布预警
2.A go off警报响起固定搭配
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中小学教育资源及组卷应用平台
3.A tsunami signs海啸前兆
4.C hidden danger潜藏的危险
5.B lives生命，复数，一千人的生命
6.A let后接动词原形 share
7.C get away from danger远离危险固定搭配
8.B send sth. to sb.向救援队伍传送影像
9.B一般现在时，disaster单数 strikes
10.D teach people knowledge向身边人传授防灾知识
五、阅读理解
Passage 1
1.B原文 The 12-year-old girl Tilly Smith
2.C Two weeks before the trip, her geography teacher taught...
3.B One key sign is that seawater will suddenly move far back from the beach
4.A all people left the beach and ran to a high multi-storey building
5.B全文围绕 12岁女孩运用课堂海啸知识挽救游客生命展开
Passage 2
6.B three main ways: text messages, TV, online notices三种渠道
7.C Now the warning time for storms has been made longer to 42 minutes, and over
90% of the warning information is right.
8.D文中未提及 app可操控社区警报器，其余三项均为 app功能
9.Drones fly over damaged areas to take photos and videos. They deliver real-time
disaster information to emergency rescue teams
10.B段落介绍中国灾害预警体系、预警渠道、安全 APP、无人机防灾技术
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