高中英语新人教版)选择性必修三课后习题：UNIT 3 Section A(课后习题)【含答案及解析】

UNIT 3ENVIRONMENTAL PROTECTION Section A Reading and Thinking
必备知识基础练
Ⅰ.单词拼写
1.At that time people would s if food was difficult to find.
2.Flora Landscape acts as an important role of society and (生态) in the urban landscape.
3.Before (释放),the sea lions are fitted with electronic tracking devices.
4.Plants absorb c dioxide from the air and moisture from the soil.
5.The love and support of his family (维持) him during his hard times.
6.The cramped living conditions severely (限制) the children’s freedom to play.
7.Jane was quick to s the meaning of what the teacher said at the meeting.
Ⅱ.短语填空
1.Zhu Ziqing would rather than accept the Americans’ flour.
2.He was caught soon after his prison.
3.Inside these zones,traffic speeds 20 mph.
4.Before he could run away,she the collar.
5.The concert and attracted the largest one night audience in the history of television up to that time.
Ⅲ.完成句子
1.毫无疑问,它可以增强人们的健康意识。

it can enhance people’s consciousness of health.
2.没有他的建议,他们不可能抓住那个重要的机会。

Without his advice,they couldn’t the important chance.
3.这位母亲决定通过让她的儿子挨饿来放弃电脑游戏。

The mother decided to into computer games.
4.他那么忙,以至于忘记把宠物狗从笼子里放出来。

He was so busy that he forgot to the cage.
5.儿童电视节目不仅有娱乐性而且还有教育意义。

Children’s television entertains teaches.
关键能力提升练
Ⅳ.阅读理解
A
Whether you feel like taking a road trip,or you just need some fun,you’ll enjoy this list of popular tourist attractions.
Alabama: Alabama Gulf Coast Beaches
If Alabama wasn’t the location for your next summer beach vacation,you may want to reconsider.There are 32 miles of white sand that has washed down from the Appalachian Mountains for thousands of years.That’s probably why over six million people visit Alabama’s Gulf Coast beaches every year.It’s just ten dollars per person.
Alaska: Kenai Fjords Wildlife Cruise
Alaska is the best place to go for spotting breathtaking (惊险的) wildlife.In fact,the number of visitors who travel to Alaska to see wildlife has increased by 45 percent.The Kenai Fjords Wildlife Cruise will bring you close to whales,sea lions and sea birds.A five-hour trip that starts at noon and covers 55 miles of sea will be the best one you have ever taken.
Arkansas: Hot Springs National Park
Skip the beach and choose a new type of relaxation at Hot Springs National Park.It’s America’s oldest and smallest national park.There’s a no-booking policy,perfect for free travellers.Doors open at 8 a.m.,so get there early!
Connecticut: Yale Peabody Museum of Natural History
Yale Peabody Museum of Natural History is a must stop if you’re travelling nearby Yale University.It attracts plenty of people and has many collections including New England
birds,dinosaurs,Greek and Roman antiquities,and even an Egyptian mummy.Adults pay $13 for entry,but if you want to visit for free,go on at Thursday.
Don’t miss the four best tourist attractions.
1.Why do many people go to Alabama’s Gulf Coast beaches?
A.It has a good and convenient location.
B.It has a history of thousands of years.
C.It has tens of miles of white sand.
D.The Appalachian Mountains are beautiful.
2.When should you get to Kenai Fjords Wildlife Cruise if you want to visit it?
A.Five hours before it opens.
B.Five hours after it opens.
C.Before eight o’clock in the morning.
D.Before twelve o’clock in the morning.
3.What should or will you do if you visit Hot Springs National Park?
A.Get up early.
B.Roll the grass.
C.Book in advance.
D.Walk on the beach.
B
This woodland construction is the world’s biggest beaver dam,which at 2,790 feet in length and more than twice the length of the Hoover Dam,and can be seen from space.
The mammals use trees,mud and stones to make a type of moat(壕沟) where they can use their swimming skills to evade(躲避) any predators(食肉动物).The families of beavers live in lodges on the dams and spend their days adding to and repairing the incredible structures.While beaver dams are often found to be around 1,500 feet in length,this one has surprised biologists because of its length.The dam is located on the southern edge of Wood Buffalo National Park in northern
Alberta,Canada.It is thought that several beaver families joined forces to create the big dam that contains thousands of trees and must have taken many months to complete.
The dams are an important part of the ecology and wider environment,and climate change can be judged by the spread of the dams.
Sharon Brown,a biologist from an educational organisation in North America,said,“Beavers build dams to create a good habitat.They are very agile(灵活的) in the water,but they’re a bit slow moving on land.”
“They create a habitat with lots of water,like a moat,around their lodges so they can swim and dive,and keep one step ahead of predators.
They also use water to move the trees they use in their dams,because it is easier floating branches on the water than dragging them over land.
Their dams are also beneficial because they slow the flow of water leading to less drought and less flooding.And when plant matter dies in water,it turns into peat(泥炭) and that is one of the best ways for storing carbon dioxide.”
4.What does the passage mainly tell us?
A.The world’s longest man-made dam.
B.The biggest woodland construction.
C.The world’s biggest beaver dam.
D.The dam can be seen from space.
5.According to biologists,this dam .
A.is a result of team work
B.was built by a family of beavers
C.is located in a national park
D.has surprising height
6.Why do beavers build dams?
A.To make them more agile.
B.To make a good living environment.
C.To make it easier to find food.
D.To keep away from predators.
7.From the last paragraph we can infer that .
A.beaver dams can change the climate
B.beavers mainly live on plants
C.beaver dams can cause flood
D.man can benefit from beaver dams
Section A Reading and Thinking
Ⅰ.1.starve2.ecology3.release4.carbon
5.sustained
6.restricted
7.seize
Ⅱ.1.starve to death2.release from3.are restricted to4.seized him by5.was broadcast live Ⅲ.1.There is no doubt that2.have seized
3.starve her son;giving up
4.release the pet dog from
5.not only;but also
Ⅳ.【语篇解读】本文是一篇应用文。

文章主要介绍了美国四个独具特色的旅游景点以及它们的特征。

1.C细节理解题。

第一个景点第二句提到这里有32英里的白色沙滩,这一点吸引了大量的游客,由此可知C项正确。

2.D细节理解题。

第二个景点提到“A five-hour trip that starts at noon”,由此可知游客必须在中午之前赶到。

3.A细节理解题。

文章第三个景点提到早上8点开门,要早点到,由此可知A项正确。

【语篇解读】本文是一篇说明文。

世界上最长的海狸水坝位于伍德布法罗国家森林公园,长2 790英尺,是胡夫水坝的两倍多,可以从太空看到。

海狸水坝可以延缓水的流动,减少干旱和洪灾的发生。

4.C主旨大意题。

根据文章的第一句“This woodland construction is the world’s biggest beaver dam...”以及全文的内容可知,文章主要讲述世界上最大的海狸水坝,由此可知,C项概括了文章的主要内容。

5.A细节理解题。

根据第二段的最后一句“It is thought that several beaver families joined forces to create the big dam that contains thousands of trees and must have taken many months to complete.”可知,是几个海狸家庭合作建成了这座大坝,所以选A项。

6.B细节理解题。

根据第四段中的“Beavers build dams to create a good habitat.”可知,海狸建大坝是为了创造一个好的居住环境,所以选B项。

7.D推理判断题。

根据最后一段的第一句“Their dams are also beneficial because they slow the flow of water leading to less drought and less flooding.”可知,海狸水坝可以延缓水的流动,减少干旱和洪灾的发生。

由此推测,海狸水坝对人类有益。