资源简介

(共42张PPT)
Unit 5 Nature's Temper
八年级
人教2026春
下
单词解析三
1.nearby(形容词)附近的；(副词)在附近
[用法讲解]nearby还可为介词，译为"在...附近".
Eg:She decided to rent an apartment nearby to save commuting time.
她决定在附近租一间公寓以节省通勤时间。
We found a parking spot at the nearby mall.
我们在附近的商场找到了停车位。
They built a shelter nearby the river.
他们在河流附近建了一个避难所。
[即学即用]
The children were playing__________(在附近).
nearby
2.scream(动词)尖叫
[用法讲解]scream还可为名词，译为"尖叫声".
Eg: She screamed when she saw the spider.
她看到蜘蛛时尖叫起来。
We heard a scream from the next room.
我们听到隔壁房间传来一声尖叫。
[常见搭配]scream with laughter放声大笑
Eg: The audience screamed with laughter at the comedian's jokes.
观众被喜剧演员的笑话逗得哈哈哈大笑。
[即学即用]
She s___________ out a warning to the people below.
creamed
3.thankfully(副词)幸亏，感激地
[用法讲解] thankfully在句中常位于句首修饰整个句子，或位于动词之后。
Eg: Thankfully, no one was injured in the accident.
幸运的是，事故中无人受伤。
They accepted the donations thankfully.
他们感激地接受了捐赠。
[常见搭配]thankfully for sb./ sth.幸运的是有某人/某物
Eg: Thankfully for my parents, they always support me.
幸运的是有我的父母，他们呢总是支持我。
[派生词] thankful为形容词，译为"感激的";
thank为动词，译为"感激，感恩".
Eg: I'm thankful for my teacher's patient guidance.
我很感激老师的耐心指导。
Thank you for your help.
谢谢你的帮助。
[即学即用]
___________(thankful), I didn't forget the documents. It would have been a big problem.
Thankfully
4.knowledge(名词)知识，学问
[用法讲解] knowledge为不可数名词，还可译为"知晓，了解".
Eg: He has a lot of knowledge about history.
他对历史有很多了解。
[常见搭配]Knowledge is power.知识就是力量。
have knowledge of...知道，了解
a knowledge of...对...的了解
to my knowledge据我所知
without my knowledge背着我/不知情
Eg: Do you have any knowledge of this language
你了解这种语言吗
a good knowledge of English
良好的英语
To my knowledge, he hasn't left yet.
据我所知，他还没走。
They changed the planwithout my knowledge.
他们背着我改了计划。
[派生词] know为动词，译为"知道，了解，认为";
knowledgeable为形容词，译为"知识渊博的，有见识的".
Eg: I know he will come tomorrow.
我知道他明天回来。
He is knowledgeable about German literature.
他对德国文学很精通。
[即学即用]
Students gain __________(know) through studying.
knowledge
5.thinking(名词)思考，想法
[用法讲解] thinking为不可数名词；thinking还可为形容词，译为"有思想的，思考的".
Eg: We need to have more thinking.
我们需要更多的思考。
We should improve our thinking skills.
我们应该提高我们的思维能力。
[常见搭配]independent thinking独立思考
do some thinking思考一下
out - of- the - box thinking创新思维
to my thinking依我看
Eg: Independent thinking is anabsolutenecessity.
独立思考是绝对必要的。
You should do some thinking before making a decision.
做决定之前你应该思考一下。
We need more out- of-the-box thinking to solve this problem.
我们需要更多的创新思维来解决这个问题。
To my thinking, this plan is not practical.
依我看，这个计划不切实际。
[派生词] think为动词，译为"想，思考";
thinker为名词，译为"思想家".
Eg: What do you think of this movie
你觉得这部电影怎么样
He is a great thinker in the field of philosophy.
他是哲学领域的伟大思想家。
[即学即用]
We need to do some clear__________(think) before launching the new project.
thinking
6.except for 除...之外
Eg: The room was empty except for a chair.
除了椅子，房间空荡荡的。
[知识拓展]except还可为动词，译为"不计，把...除外，反对"等，其后常接doing形式；except还可作连词，译为"只是，除非".
Eg:We work every day except Sunday.
我们除了星期天外每天都工作。
As he grew older he lost interest in everything except gardening.
他年纪越来越大，除了喜欢园艺之外，对一切都失去了兴趣。
You will be punished, I can except no one.
你们都得受罚，任何人不能除外。
I'll take the job except if the pay is too low.
除非工资太低，否则我会接受这一工作。
[易混辨析]except, except for,besides区别：
except排除同类事物中的个体，强调"不包括";
except for对整体进行部分否定或修正，常用于非同类比较或美中不足的情况；
besides表示附加，译为"除了...之外".
Eg:All came except Tom.
除汤姆外都来了。
The essay is perfect except for typos.
除拼写错误外，文章完美。
Besides math, she studies physics.
除数学外，她还学物理。
[即学即用]
( )1.Everyone is here_____Xiao Wang and me.
A.except B.besides C.except forD.beside
2.我们别无选择，只能等待。
We have no other choice____________waiting
A
except for
7.as soon as...一...就...
[用法讲解] as soon as用于引导时间状语从句，遵循主将从现原则。
Eg: I'll help you with your work as soon as I finish this task.
我一完成这项任务，就会帮你做工作。
[知识拓展] as为连词，还可译为"按照，虽然";as还可为介词，译为"像...一样";as也可为副词，译为"像...一样".
Eg: As he was tired, he went to bed early.
因为他累了，所以他很早就上床睡觉了。
Do as I do, and you'll succeed.
照我做的那样做，你就会成功。
As I was walking down the street, I saw a cat.
当我在街上走的时候，我看到了一只猫。
Young as he is, he has been one of the most famous painters in our country.
虽然他还很年轻，但已经成为我们国家最有名的画家之一。
She dressed as a princess for the party.
她为派对打扮得像公主一样。
You're as tall as your father.
你和你父亲一样高。
[常见搭配]as soon as...一...就...
as 形容词 as像...一样
Eg: I will call you as soon as I arrive there.
我一到那就给你打电话。
Math is as important as English.
数学像英语一样重要。
[即学即用]
1.我一到家就马上开始做饭。
____________ I get home, I'll start cooking.
( )2.______it was getting dark, we decided to stay at the hotel for another night.
A.Because B.For C.As D.So
As soon as
C
8.hero(名词)英雄，男主角，偶像
[用法讲解]hero为可数名词，其复数形式为heroes.
Eg: Superman is a famous hero in comic books.
超人是漫画书中著名的英雄。
The hero of this novel is a young doctor.
这部小说的男主角是一位年轻的医生。
My boyhood hero was a great athlete.
我童年时代的偶像是一位伟大的运动员。
[常见搭配]national hero民族英雄
Eg: Zheng Chenggong is a national hero in Chinese history.
郑成功是中国历史上的民族英雄。
[派生词] heroic为形容词，译为"英勇的";
heroism为名词，译为"英雄主义，英雄行为";
heroine为名词，译为"女英雄，女主角".
Eg: The heroic deeds of the soldiers will be remembered forever.
士兵们的英勇事迹将被永远铭记。
His heroism in the battle saved many lives.
他在战斗中的英雄主义行为拯救了许多生命。
Joan of Arc is a famous heroine in history.
圣女贞德是历史上著名的女英雄。
[即学即用]
The firefighters are the real_________(hero) of the city.
heroes
9.landslide(名词)(山坡或悬崖的)滑坡，塌方
[用法讲解] landslide为可数名词，其复数形式为landslides;landslide还可为动词，译为"发生山崩，以绝对优势获胜"，其过去式为 landslid，过去分词为landslid.
Eg:They heavy rain triggered a landslide that blocked the road.
暴雨引发了山体滑坡，阻塞了道路。
The hillside landslid after the earthquake.
地震后山坡发生了山崩。
He is expected to landslide in the upcoming election.
预计他将在即将到来的选举中以绝对优势获胜。
[常见搭配]landslide hazard滑坡灾害
landslide control滑坡防治
Eg:We need to assess the landslide hazard in this mountainous area.
我们需要评估这个山区的滑坡灾害风险。
The government is investing in landslide control projects to protect the villages.
政府正在投资滑坡防治项目以保护村庄。
[即学即用]
Did you hear about the________(滑坡)in the nearby town
landslide
10.safeguard(动词)保护，捍卫；(名词)安全设施
[用法讲解] safeguard为可数名词，其复数形式为safeguards.
Eg:We must safeguardour national interests.
我们必须捍卫我们的国家利益。
The law safeguards the rights of workers.
法律保障工人的权力。
We need to take safeguards against theft.
我们需要采取防盗措施。
[常见搭配]safeguard against防范，防止
safeguard sth.from...保护某物免受...
take safeguard采取保护措施
Eg: We should safeguard against the spread of the disease.
我们应该防止疾病的传播。
These regulations safeguard consumers from fraud.
这些规定保护消费者免受欺诈。
We need to take some safeguards to ensure the safety of the project.
我们需要采取一些保护措施来确保项目的安全。
[派生词]safeguarder为名词，译为"保护者，捍卫者".
Eg: He is a staunch safeguarder of human rights.
他是一位坚定的人权捍卫者。
[即学即用]
The new law provides strong legal___________(保障)for consumers.
safeguards
11.floodwater(名词)洪水
[用法讲解] floodwater常为不可数名词，但在表示"洪水退去后的残留水体"时为可数名词，其复数形式为floodwaters.
Eg: The floodwater submerged the whole village.
洪水淹没了整个村庄。
The floodwaters have now receded.
洪水现已消退。
[即学即用]
The___________(洪水)was so deep that people couldn't walk through it.
floodwater
12.manpower(名词)劳动力，人力
[用法讲解]manpower为不可数名词。
Eg: The company is short of manpower to complete the order on time.
公司缺乏人力按时完成订单。
[即学即用]
There is a lack of___________(人力)in this department.
manpower
13.heartbeat(名词)心跳(声)
[用法讲解]heartbeat为可数名词，其复数形式为heartbeats.
Eg: I can feel my heartbeat when I'm nervous.
我紧张的时候能感觉到自己的心跳。
[常见搭配]in a heartbeat立刻，马上
follow the heartbeat of...紧跟...的节奏/趋势
Eg: If I had the chance, I would leave here in a heartbeat.
如果我有机会，我会立刻离开这里。
We should follow the heartbeat of the market.
我们应该紧跟市场的趋势。
[即学即用]
The doctor listened to the patient's ____________(heartbeat) carefully.
heartbeats
14.rescue(名词)救援；(动词)援救，营救
[用法讲解]rescue常为不可数名词。
Eg: The mountain rescue was successful.
这次山地救援行动成功了。
Therescue ofthe miners trapped underground took several days.
营救被困在地下的矿工花了几天时间。
[常见搭配]rescue sb.from...把某人从...中救出
come to one's rescue赶来就某人，出手相助
a rescue team/ crew救援队/救援小组
Eg:Firefighters rescued three people from the burning building.
消防员从燃烧的大楼中救出了三人。
When my carbroke down,my neighbor came to my rescue with a jump start.
当我的车抛锚时，邻居用搭电启动赶来救我。
The rescue team arrived within minutes and began searching for survivors.
救援队几分钟内赶到，开始搜寻幸存者。
[派生词]rescuer为名词，译为"救援者".
Eg: The rescuers received awards for their bravery.
救援人员因他们的勇敢而获得嘉奖。
[即学即用]
警察从恐怖分子手中解救了人质。
The police_______the hostages_______ the terrorists.
rescued from
15.heatwave(名词)热浪
[用法讲解] heatwave为可数名词，其复数形式为heatwaves.
Eg: A heatwave is sweepingacross the region.
一股热浪正席卷该地区。
[即学即用]
The small town was hit by a a severe___________(热浪)last month.
heatwave
16.since(介词/副词/连词)自...以后，从...以来；(连词)既然，由于
[用法讲解]since为连词，用来引导原因状语从句；since为介词时，译为"自从...以来"，后面可接具体时间点，"一段时间+ago"或从句，常用于现在完成时中。
Eg:Since the weather is terrible, we'll cancel the picnic.
因为天气糟糕，我们取消了野餐。
I have been here since 1989.
自1989年起，我就一直在这里。
I have been here since five months ago.
我在这里已经五个月了。
Great changes have taken place since you left.
你走后，这里发生了巨大的变化。
[常见搭配]It is/ has been+一段时间+since从句
ever since从那时起一直到现在
since then从那时起
Eg: It has been years since I saw him.
我很多年没见过他了。
He moved to London in 2010 and has worked there ever since.
他2010年搬到伦敦，从那时起一直在那里工作。
Since then, the policy has been revised twice.
此后，该政策已修订两次。
[即学即用]
自那以后，我就一直在观望事情的发展。
__________, I've been waiting on events.
Since then
17.southwestern(形容词)西南的，西南方向的
[用法讲解]southwestern在句中常位于名词前作定语；southwestern还可为可数名词，其复数形式为southwesterns.
Eg: The southwestern part of the country has a rich cultural heritage.
这个国家的西南部有着丰富的文化遗产。
Many southwesterns are proud of their local culture.
许多西南地区的人为他们当地的文化感到自豪。
[即学即用]
We plan to take a trip to the_____________(西南的)cities next month.
southwestern
Thanks!
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Unit 5 Nature's Temper 单词解析三
1.nearby(形容词)附近的；(副词)在附近
[用法讲解] nearby还可为介词，译为"在...附近".
Eg: She decided to rent an apartment nearby to save commuting time.
她决定在附近租一间公寓以节省通勤时间。
We found a parking spot at the nearby mall.
我们在附近的商场找到了停车位。
They built a shelter nearby the river.
他们在河流附近建了一个避难所。
[即学即用]
The children were playing__________(在附近).
答案：nearby
2.scream(动词)尖叫
[用法讲解] scream还可为名词，译为"尖叫 声".
Eg: She screamed when she saw the spider.
她看到蜘蛛时尖叫起来。
We heard a scream from the next room.
我们听到隔壁房间传来一声尖叫。
[常见搭配] scream with laughter 放声大笑
Eg: The audience screamed with laughter at the comedian's jokes.
观众被喜剧演员的笑话逗得哈哈哈大笑。
[即学即用]
She s___________ out a warning to the people below.
答案：screamed
3.thankfully(副词)幸亏，感激地
[用法讲解] thankfully在句中常位于句首修饰整个句子，或位于动词之后。
Eg: Thankfully, no one was injured in the accident.
幸运的是，事故中无人受伤。
They accepted the donations thankfully.
他们感激地接受了捐赠。
[常见搭配] thankfully for sb./ sth. 幸运的是有某人/某物
Eg: Thankfully for my parents, they always support me.
幸运的是有我的父母，他们呢总是支持我。
[派生词] thankful为形容词，译为"感激的";
thank为动词，译为"感激，感恩".
Eg: I'm thankful for my teacher's patient guidance.
我很感激老师的耐心指导。
Thank you for your help.
谢谢你的帮助。
[即学即用]
___________(thankful), I didn't forget the documents. It would have been a big problem.
答案：Thankfully
4.knowledge(名词)知识，学问
[用法讲解] knowledge为不可数名词，还可译为"知晓，了解".
Eg: He has a lot of knowledge about history.
他对历史有很多了解。
[常见搭配] Knowledge is power. 知识就是力量。
have knowledge of... 知道，了解
a knowledge of... 对...的了解
to my knowledge 据我所知
without my knowledge背着我/不知情
Eg: Do you have any knowledge of this language
你了解这种语言吗
a good knowledge of English
良好的英语
To my knowledge, he hasn't left yet.
据我所知，他还没走。
They changed the plan without my knowledge.
他们背着我改了计划。
[派生词] know为动词，译为"知道，了解，认为";
knowledgeable为形容词，译为"知识渊博的，有见识的".
Eg: I know he will come tomorrow.
我知道他明天回来。
He is knowledgeable about German literature.
他对德国文学很精通。
[即学即用]
Students gain __________(know) through studying.
答案：knowledge
5.thinking(名词)思考，想法
[用法讲解] thinking为不可数名词；thinking还可为形容词，译为"有思想的，思考的".
Eg: We need to have more thinking.
我们需要更多的思考。
We should improve our thinking skills.
我们应该提高我们的思维能力。
[常见搭配] independent thinking 独立思考
do some thinking 思考一下
out - of- the - box thinking 创新思维
to my thinking 依我看
Eg: Independent thinking is an absolute necessity.
独立思考是绝对必要的。
You should do some thinking before making a decision.
做决定之前你应该思考一下。
We need more out- of-the-box thinking to solve this problem.
我们需要更多的创新思维来解决这个问题。
To my thinking, this plan is not practical.
依我看，这个计划不切实际。
[派生词] think为动词，译为"想，思考";
thinker为名词，译为"思想家".
Eg: What do you think of this movie
你觉得这部电影怎么样
He is a great thinker in the field of philosophy.
他是哲学领域的伟大思想家。
[即学即用]
We need to do some clear__________(think) before launching the new project.
答案：thinking
6.except for 除...之外
Eg: The room was empty except for a chair.
除了椅子，房间空荡荡的。
[知识拓展]except还可为动词，译为"不计，把...除外，反对"等，其后常接doing形式；except还可作连词，译为"只是，除非".
Eg:We work every day except Sunday.
我们除了星期天外每天都工作。
As he grew older he lost interest in everything except gardening.
他年纪越来越大，除了喜欢园艺之外，对一切都失去了兴趣。
You will be punished, I can except no one.
你们都得受罚，任何人不能除外。
I'll take the job except if the pay is too low.
除非工资太低，否则我会接受这一工作。
[易混辨析] except, except for,besides区 别：
except排除同类事物中的个体，强调"不包括";
except for对整体进行部分否定或修正，常用于非同类比较或美中不足的情况；
besides表示附加，译为"除了...之外".
Eg:All came except Tom.
除汤姆外都来了。
The essay is perfect except for typos.
除拼写错误外，文章完美。
Besides math, she studies physics.
除数学外，她还学物理。
[即学即用]
( )1.Everyone is here_____Xiao Wang and me.
A.except B.besides C.except for D.beside
2.我们别无选择，只能等待。
We have no other choice____________waiting
答案：1.A 2.except for
7.as soon as... 一...就...
[用法讲解] as soon as用于引导时间状语从句，遵循主将从现原则。
Eg: I'll help you with your work as soon as I finish this task.
我一完成这项任务，就会帮你做工作。
[知识拓展] as为连词，还可译为"按照，虽然";as还可为介词，译为"像...一样";as也可为副词，译为"像...一样".
Eg: As he was tired, he went to bed early.
因为他累了，所以他很早就上床睡觉了。
Do as I do, and you'll succeed.
照我做的那样做，你就会成功。
As I was walking down the street, I saw a cat.
当我在街上走的时候，我看到了一只猫。
Young as he is, he has been one of the most famous painters in our country.
虽然他还很年轻，但已经成为我们国家最有名的画家之一。
She dressed as a princess for the party.
她为派对打扮得像公主一样。
You're as tall as your father.
你和你父亲一样高。
[常见搭配] as soon as... 一...就...
as 形容词 as 像...一样
Eg: I will call you as soon as I arrive there.
我一到那就给你打电话。
Math is as important as English.
数学像英语一样重要。
[即学即用]
1.我一到家就马上开始做饭。
____________ I get home, I'll start cooking.
( )2.______it was getting dark, we decided to stay at the hotel for another night.
A.Because B.For C.As D.So
答案：1.As soon as 2.C
8.hero(名词)英雄，男主角，偶像
[用法讲解] hero为可数名词，其复数形式为heroes.
Eg: Superman is a famous hero in comic books.
超人是漫画书中著名的英雄。
The hero of this novel is a young doctor.
这部小说的男主角是一位年轻的医生。
My boyhood hero was a great athlete.
我童年时代的偶像是一位伟大的运动员。
[常见搭配] national hero 民族英雄
Eg: Zheng Chenggong is a national hero in Chinese history.
郑成功是中国历史上的民族英雄。
[派生词] heroic为形容词，译为"英勇的";
heroism为名词，译为"英雄主义，英雄行为";
heroine为名词，译为"女英雄，女主角".
Eg: The heroic deeds of the soldiers will be remembered forever.
士兵们的英勇事迹将被永远铭记。
His heroism in the battle saved many lives.
他在战斗中的英雄主义行为拯救了许多生命。
Joan of Arc is a famous heroine in history.
圣女贞德 是历史上著名的女英雄。
[即学即用]
The firefighters are the real_________(hero) of the city.
答案：heroes
9.landslide(名词)(山坡或悬崖的)滑坡，塌方
[用法讲解] landslide为可数名词，其复数形式为landslides;landslide还可为动词，译为"发生山崩，以绝对优势获胜"，其过去式为 landslid，过去分词为landslid.
Eg: They heavy rain triggered a landslide that blocked the road.
暴雨引发了山体滑坡，阻塞了道路。
The hillside landslid after the earthquake.
地震后山坡发生了山崩。
He is expected to landslide in the upcoming election.
预计他将在即将到来的选举中以绝对优势获胜。
[常见搭配] landslide hazard 滑坡灾害
landslide control 滑坡防治
Eg:We need to assess the landslide hazard in this mountainous area.
我们需要评估这个山区的滑坡灾害风险。
The government is investing in landslide control projects to protect the villages.
政府正在投资滑坡防治项目以保护村庄。
[即学即用]
Did you hear about the________(滑坡)in the nearby town
答案：landslide
10.safeguard(动词)保护，捍卫；(名词)安全设施
[用法讲解] safeguard为可数名词，其复数形式为safeguards.
Eg:We must safeguard our national interests.
我们必须捍卫我们的国家利益。
The law safeguards the rights of workers.
法律保障工人的权力。
We need to take safeguards against theft.
我们需要采取防盗措施。
[常见搭配] safeguard against 防范，防止
safeguard sth.from...保护某物免受...
take safeguard 采取保护措施
Eg: We should safeguard against the spread of the disease.
我们应该防止疾病的传播。
These regulations safeguard consumers from fraud.
这些规定保护消费者免受欺诈。
We need to take some safeguards to ensure the safety of the project.
我们需要采取一些保护措施来确保项目的安全。
[派生词] safeguarder为名词，译为"保护者，捍卫者".
Eg: He is a staunch safeguarder of human rights.
他是一位坚定的人权捍卫者。
[即学即用]
The new law provides strong legal___________(保障)for consumers.
答案：safeguards
11.floodwater(名词)洪水
[用法讲解] floodwater常为不可数名词，但在表示"洪水退去后的残留水体"时为可数名词，其复数形式为floodwaters.
Eg: The floodwater submerged the whole village.
洪水淹没了整个村庄。
The floodwaters have now receded.
洪水现已消退。
[即学即用]
The___________(洪水)was so deep that people couldn't walk through it.
答案：floodwater
12.manpower(名词)劳动力，人力
[用法讲解] manpower为不可数名词。
Eg: The company is short of manpower to complete the order on time.
公司缺乏人力按时完成订单。
[即学即用]
There is a lack of___________(人力)in this department.
答案：manpower
13.heartbeat(名词)心跳(声)
[用法讲解]heartbeat为可数名词，其复数形式为heartbeats.
Eg: I can feel my heartbeat when I'm nervous.
我紧张的时候能感觉到自己的心跳。
[常见搭配] in a heartbeat 立刻，马上
follow the heartbeat of... 紧跟...的节奏/趋势
Eg: If I had the chance, I would leave here in a heartbeat.
如果我有机会，我会立刻离开这里。
We should follow the heartbeat of the market.
我们应该紧跟市场的趋势。
[即学即用]
The doctor listened to the patient's ____________(heartbeat) carefully.
答案：heartbeats
14.rescue(名词)救援；(动词)援救，营救
[用法讲解] rescue常为不可数名词。
Eg: The mountain rescue was successful.
这次山地救援行动成功了。
The rescue of the miners trapped underground took several days.
营救被困在地下的矿工花了几天时间。
[常见搭配] rescue sb.from... 把某人从...中救出
come to one's rescue 赶来就某人，出手相助
a rescue team/ crew 救援队/救援小组
Eg: Firefighters rescued three people from the burning building.
消防员从燃烧的大楼中救出了三人。
When my car broke down, my neighbor came to my rescue with a jump start.
当我的车抛锚时，邻居用搭电启动赶来救我。
The rescue team arrived within minutes and began searching for survivors.
救援队几分钟内赶到，开始搜寻幸存者。
[派生词] rescuer为名词，译为"救援者".
Eg: The rescuers received awards for their bravery.
救援人员因他们的勇敢而获得嘉奖。
[即学即用]
警察从恐怖分子手中解救了人质。
The police_______the hostages_______ the terrorists.
答案：rescued;from
15.heatwave(名词)热浪
[用法讲解] heatwave为可数名词，其复数形式为heatwaves.
Eg: A heatwave is sweeping across the region.
一股热浪正席卷该地区。
[即学即用]
The small town was hit by a a severe___________(热浪)last month.
答案：heatwave
16.since(介词/副词/连词)自...以后，从...以来；(连词)既然，由于
[用法讲解]since为连词，用来引导原因状语从句；since为介词时，译为"自从...以来"，后面可接具体时间点，"一段时间+ago"或从句，常用于现在完成时中。
Eg:Since the weather is terrible, we'll cancel the picnic.
因为天气糟糕，我们取消了野餐。
I have been here since 1989.
自1989年起，我就一直在这里。
I have been here since five months ago.
我在这里已经五个月了。
Great changes have taken place since you left.
你走后，这里发生了巨大的变化。
[常见搭配] It is/ has been+一段时间+since从句
ever since 从那时起一直到现在
since then 从那时起
Eg: It has been years since I saw him.
我很多年没见过他了。
He moved to London in 2010 and has worked there ever since.
他2010年搬到伦敦，从那时起一直在那里工作。
Since then, the policy has been revised twice.
此后，该政策已修订两次。
[即学即用]
自那以后，我就一直在观望事情的发展。
__________, I've been waiting on events.
答案：Since then
17.southwestern(形容词)西南的，西南方向的
[用法讲解] southwestern在句中常位于名词前作定语；southwestern还可为可数名词，其复数形式为southwesterns.
Eg: The southwestern part of the country has a rich cultural heritage.
这个国家的西南部有着丰富的文化遗产。
Many southwesterns are proud of their local culture.
许多西南地区的人为他们当地的文化感到自豪。
[即学即用]
We plan to take a trip to the_____________(西南的)cities next month.
答案：southwestern
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