Unit 7 What s the highest mountain in the world？话题拓展阅读 （含解析）

Unit 7 What's the highest mountain in the world？
话题拓展阅读（含答案解析）
阅读理解
A
The Sahara Desert is the largest hot desert in the world. It is about 9 600 000 square kilometers in size. This is almost the size of the America or China. The desert covers eleven countries in the north of Africa.
The Nile runs through the Sahara Desert all year round. But there are also other rivers running through it seasonally (季节性地). The geography of the desert includes huge sand dunes (沙丘) and dune fields. Some of the sand dunes are 80 huge that they can even be over 152 meters high. But there are also other amazing landforms (地形) in different parts of the desert.
It is very hot and dry in the Sahara Desert. The temperature there is usually 30℃. However, during the hottest months, the temperature can go over 50℃. Because of the high temperatures and poor conditions of the desert, only a few plants live here, just about 500 kinds. They also play a role in the number of animals. In the driest part of the desert, there are only 70 different kinds of animals.
Today the Sahara’s population is around four million. They move from place to place through the desert. Because of this there are many different cultures and languages in this area.
1．From the first paragraph we can know that the Sahara Desert ________.
A．is the same as America in size
B．is almost as big as China
C．is about 960 000 square kilometers in size
D．covers eleven countries in the south of Africa
2．What does the underlined word “They” refer to
A．High temperatures and poor conditions. B．Some plants and animals.
C．Huge dunes and dune fields. D．Languages and culture.
3．What can’t we know about the Sahara Desert
A．Its size. B．Its landforms. C．Its temperatures. D．Its future.
4．What can we learn from the passage
A．There is no water in the Sahara Desert.
B．Only the Nile goes through the desert.
C．There are only seventy different kinds of plants living there.
D．The Sahara area is rich in culture and language.
5．Where can we find the passage most probably
A．In a storybook. B．In a sports magazine.
C．In a geography book. D．In a health newspaper.
B
Coconuts grow on trees. The word “coconut ” come from the old Spanish (西班牙语) for “bogeyman (鬼怪)”. Early people from Spain thought coconuts looked like the terrible heads of bogeymen!
Coconut tree grow in hot countries, especially near beaches. Maybe you’ve seen them on your holiday! When we pick it from the tree, a coconut look like a big green ball. Inside the green fruit is the coconut we know. It’s covered in a hard, hairy shell, and the inside made up of white flesh and coconut milk.
If you are strong enough to break a coconut open, you’ll find a world of goodness (精华)! The fresh is full of important fats, which give us lots of energy (能量). The coconut can be dried and added to other foods. It makes delicious ice cream, too. Even the milk inside the coconut is full of goodness. It has calcium (钙), which makes your bones (骨头) strong, and that would help you to climb the tree to reach the coconut!
The coconut tree must be one of the most useful trees in the whole world! You can use almost every bit of it. It provides food, drink and also oil for cooking or skin care. The hairy covering is used to make ropes. The empty shells can be used as food bowls. The leaves can be used to make baskets, and the wood can be used as firewood. Now that is a really helpful tree!
6．How do coconuts get the name
A．From their use. B．From their size.
C．From their look. D．From their growing places.
7．What does the underlined word “them” refer to (指的是)
A．Coconuts. B．Coconut trees. C．Beaches. D．Hot places.
8．Which part of a coconut is good for bones
A．The milk. B．The flesh. C．The hairy shell. D．The outside skin.
9．Which of the following can be used to make baskets
A．The wood. B．The leaves. C．The empty shells. D．The hairy covering.
C
There are places in North America where great cities once stood. There were gardens, trees and grass. But now these places are like deserts. Scientists began to study this land to find out what had happened. Many of them believe the land died when the trees were cut down.
Trees help other plants grow. Tree roots (树根) hold the soil in place. They keep the wind from blowing away the soil. Leaves on the ground keep rainwater from running off. Trees near farms can help to stop strong winds.
Once there were hundreds of farms in the northwest of the US. Then the farms turned into fields of dry land. This was because few trees grow there.
Now we try to save trees. In many places, when a tree is cut down, a new tree is planted in its place. We don’t want the land to die.
10．Places where great cities stood are now like ________.
A．forests B．deserts C．farms D．gardens
11．The underlined word “its” means ________.
A．the old tree’s B．the new tree’s C．the place’s D．the land’s
12．Why are trees important
A．Because they turn fields into dry land. B．Because they help other plants grow.
C．Because they help strong winds blow. D．Because they keep rainwater running off.
13．What does the text tell us
A．Farms are better than cities. B．There are no deserts in America.
C．Lands will die without trees. D．All the trees are cut down.
14．Which of the following is TRUE according to the passage
A．You can’t find any trees or grass in North America.
B．Trees help us live a life as we are living now.
C．Trees grow only in the deserts.
D．Trees can blow soil away.
D
Do you know why different animals or pests (害虫) have their special colors Colors in them seem to be used mainly to protect themselves.
Some birds like eating locusts (蝗虫). But birds cannot easily catch them. Why It is because locusts change their colors together with the change of the colors of crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown color as crops have. Some other pests with different colors from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of coloring is protecting themselves. Bears, tigers and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colors much like the trees.
Have you ever noticed an even stranger act An octopus (章鱼) can send out a kind of very black liquid when it faces danger. While the liquid spreads over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn’t strong at all.
15．From the passage we learn that locusts ________.
A．are small animals B．are easily found by birds
C．are dangerous to their enemies D．change their colors to protect themselves
16．How can pests with different colors from plants keep out of danger
A．They run away quickly.
B．Their colors are like their enemies’.
C．They hide themselves in the day and appear at night.
D．They have to move quietly.
17．Bears and tigers can keep safe because they ________.
A．have the colors much like the trees B．move quickly
C．like brown and grey colors D．live in forests
18．An octopus lives up to now because ________.
A．it is very big and strong
B．the liquid it sends out helps it escape from its enemies
C．the liquid it sends out can kill its enemies
D．it swims faster than any other fish
19．Which is the BEST title for this passage
A．The Changes of Colors for Animals and Pests B．Colors of Different Animals and Pests
C．The Main Use of Colors for Animals and Pests D．Some Animals and Pests
E
Rivers are one of our most important natural resources（自然资源）. Many of the world’s great cities are located on rivers, and almost every country has at least one river flowing through it that plays an important part in the lives of its people.
Since the beginning of history, people have used rivers for transportation. The longest one in the United States is the Mississippi. The lifeline（生命线）of Egypt is the Nile. To the people of India, the Ganges is great, but it is also important for transportation. Ships can travel along it for a thousand miles. Other great rivers are the Congo in Africa and the Mekong in southeast Asia. The greatest of all for navigation（航海）, however, is the Amazon in Brazil. It is so wide and so deep that large ships can go about two thousand miles upon it.
Besides transportation, rivers give food, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks. In order to increase the supply of water for crops, engineers sometimes build a dam（大坝）across a river and let a lake form behind the dam. Then people can use the water not only to irrigate（灌溉）their fields but also to make electricity for their homes and industries.
However, large cities and industries that are located upon rivers often make problems. As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials. People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits（利益）of this natural resource.
20．The greatest river for navigation is ________.
A．the Amazon B．the Nile C．the Mekong D．the Mississippi
21．Which is WRONG
A．The Nile is in India.
B．Almost every country has at least one important river.
C．Many cities are located on rivers.
D．Rivers play an important part in the lives of people.
22．From a dam, people can use the water for ________.
A．keeping the rivers clean B．only making electricity
C．washing clothes D．irrigation and making electricity
23．The water in the river is polluted because of ________.
A．people’s drinking water too much B．people’s swimming in the river too much
C．chemicals and other materials D．people’s building a dam across a river
24．The best title of the passage is ________.
A．Rivers in Cities B．The Importance of Rivers
C．Transportation D．Natural Resources
F
On my recent trip to Sydney with my parents, we visited the Wildlife Park.
The Wildlife Park has lots of different animals and birds. Some are native (当地的) toAustralia and can only be found there. There are over 600 animals there, including kangaroos,koalas and crocodiles (鳄鱼). They are kept in their natural environment. I like the Wildlife Park better than a zoo where most of the animals are in cages (笼子).
We first spent some time with the kangaroos. We were allowed to touch and feed them. It was very exciting to be so close to them. There were koalas there too. They looked very cuddly (令人想拥抱的). Although we were not allowed to carry them, I got to take a photo with one. It is a wonderful souvenir (纪念品) of my holiday in Sydney.
The Wildlife Park has plenty of freshwater and saltwater crocodiles. Some of them arereally big and scary (吓人的) with huge teeth! I did not want to get too close to them.
There was also a bird show. The keepers showed us different species (种类) they had. I saw
an old parrot which could “talk”. It made a great impression on me.
I enjoyed the trip very much. There was so much to see.
25．Where is the Wildlife Park
A．In Sydney. . B．In Cairo. . C．In Athens. . D．In Rome.
26．What is a wonderful souvenir of the writer’s holiday
A．A parrot that could talk. . B．A chance to feed a koala.
C．A photo with a koala. . D．Food for the kangaroos.
27．Why didn’t the writer want to get very close to the crocodiles
A．They lived in water.
B．The writer was afraid of them.
C．The writer did not want to feed them.
D．The writer did not like the smell of saltwater.
28．Which of the following is true
A．The kangaroos are kept in cages in the Wildlife Park.
B．The writer travelled to the Wildlife Park alone.
C．The writer went to see koalas first.
D．The writer watched a bird show.
29．How did the writer feel after visiting the Wildlife Park
A．Excited. . B．Unhappy. . C．Bored. . D．Hopeless.
G
March is coming, we advise several travel places for you. Go to a right place at right time as a smart traveler. Yes, you are smart traveler!
Best China Getaway—GuiyangThose who know Guiyang will always remember it for the many minority group (少数民族) people in their colorful traditional clothes and decorations (装饰品), their singing and dancing during the festivals. Also the beautiful lake and mountain scenery create a truly romantic atmosphere (浪漫氛围).
Huangguoshu WaterfallThe Waterfall in Anshun is about 150 kilometers from Guiyang City, of the Huangguoshu Waterfalls Cluster (群), the Huangguoshu Waterfall is the grandest (壮丽的). It’s 77.8 meters tall and 101 meters wide. It’s the biggest waterfall in China.
Best Experience Getaway—New ZealandNew Zealand should be on your travelling list, made up of North and South islands, lots of outdoor adventures (冒险), steaming geothermal parks (地热公园), mirror-surfaced fiords (峡湾) as well as world class (级别) wines and nice coffee..
Best For Relaxing—Duong Dong MarketDuong Dong Market, located along Tran Phu Street, is Phu Quoc Island’s busiest and largest outdoor market. The best time to visit is in the early morning, where you can see the locals bargaining (议价) hard for household items (家居用品), fresh and dried seafood, meals sweets and fruit from mainland Vietnam.
Click “READ MORE” to download (下载) the form, or call us at 400 820 6113, or follow WeChat ID 18321396195 to make your travel plan.
30．________ creates a truly romantic atmosphere.
A．The minority group people
B．Their colorful traditional clothes and decorations
C．The beautiful lake and mountain scenery
D．Their singing and dancing
31．How far is it from the Huangguoshu Waterfall to Guiyang City ________
A．It’s 178.8 meters. B．It’s 77.8 kilometers.
C．It’s 101 meters. D．It’s about 150 kilometers.
32．________ is made up of North and South islands.
A．Guiyang B．Huangguoshu Waterfall
C．New Zealand D．Duong Dong Market
33．You can’t see ________ in Duong Dong Market.
A．fresh and dried seafood B．the locals bargaining hard
C．fruit from mainland Vietnam D．steaming geothermal parks
34．Where do you think the passage comes from ________
A．It’s from a book. B．It’s from the Internet.
C．It’s from TV. D．It’s from a magazine.
二、完形填空
The Sahara is one of the world’s 35 deserts. Many people think it has always been a desert 36 they are wrong. At one time the Sahara was under water, and then the water went away and things grew. 37 , hot winds made everything very dry and then 38 could grow.
During the day, the Sahara can be 39 place in the world. One day, in 1924, it was 136.4 °F, or 58℃. 40 night, however, it is not so hot. And in winter it can be very cold. Not 41 big animals can live in the desert. The camel is the best known and there 42 also a kind of deer. These animals can live for a long time 43 water. There are also people living in the desert. They are called Bedouins（贝多因人）. They don’t live in the same place all the time, but move about 44 place to place.
35．A．big B．bigger C．the biggest D．biggest
36．A．but B．and C．or D．so
37．A．However B．Because C．So D．And
38．A．everything B．anything C．something D．nothing
39．A．hot B．hotter C．hottest D．the hottest
40．A．In B．On C．At D．By
41．A．much B．many C．a lot D．a lots of
42．A．be B．is C．are D．has
43．A．with B．without C．have D．has
44．A．between B．by C．from D．of
三、任务型阅读
A
The giant panda is one of the most popular animals in the world. A giant panda can grow up to 1.5 meters tall and weigh up to 160kg. People think the giant panda is very lovely. ①So it is not surprising that the World Wide Fund for Nature chose the giant panda as its symbol. The WWF tells people about animals that are in danger and raises money to save them.
The giant panda only lives in the wild in China. In the early 1980s, there were only 1,000 left in the wild. The main reason why pandas are endangered is that the area where panda can live has become smaller.
The WWF works to help giant pandas in the wild in many ways. One of the ways is to increase the size of panda reserves（自然保护区）. Some reserves need to be joined together by planting bamboo between them to make “corridors”. These are paths that lead from one reserve to another. No one may harm the pandas in these areas. The corridors let pandas move from one habitat（栖息地）to another to look for food. ②People are working very hard to make sure the giant panda does not die out.
45．How long and heavy can a giant panda grow to be
46．将文中画线的句子①改为被动句。
So it is not surprising that by the World Wide Fund for Nature.
47．Why are the giant pandas endangered
48．Give a way to help the giant pandas in the wild, please.
49．将文中画线的句子②翻译成中文。
B
The weather gets colder, days get shorter and the leaves change their colours and fall off the trees. Soon, winter is here. Snow covers the ground. People live in warm houses and wear heavy coats outside. Our food comes from the stores, but what happens to the birds
Birds do many different, amazing things to get through the winter. Some of them migrate. This means they travel to other places, where the weather is warmer, or where they can find food.
Many birds migrate in autumn. Some travel in large groups, because the trip can be dangerous. For example, geese fly in noisy V-shaped groups. Other kinds of birds fly alone.
How do they know when it is time to leave for the winter Scientist are still studying this. Many scientists think migration is part of a yearly cycle of changes that a bird goes through. The cycle is controlled by changes in the amount of daylight and the weather.
Birds can fly very long distances. For example, the Arctic tern（北极燕鸥）lives close to the North Pole in summer. In autumn, it flies south, all the way to the South Pole. Each spring it returns to the North Pole.
Most birds migrate shorter distances. Do you know how they find their way to the same place each year Birds use the sun, moon and stars for direction.
Why do birds migrate
Why do birds migrate To find better 50 .
Which birds travel in groups 51 .
How do birds know when to migrate They know from the 52 .
Which birds travel the longest distance 53 .
Birds use the 54 to find their way home.
参考答案：
1．B 2．A 3．D 4．D 5．C
【导语】本文主要介绍了撒哈拉沙漠的面积、地形和温度。
1．细节理解题。根据“It is about 9 600 000 square kilometers in size. This is almost the size of the America or China.”可知，撒哈拉沙漠的面积几乎相当于美国或中国的面积。故选B。
2．词句猜测题。根据“Because of the high temperatures and poor conditions of the desert, only a few plants live here, just about 500 kinds. ”可知，划线部分“they”应指代前面提到的高温和恶劣的条件。故选A。
3．细节理解题。通读全文可知，第一段介绍了撒哈拉沙漠的面积，第二段介绍了它的地形，第三段介绍了它的温度，未提及它的未来。故选D。
4．细节理解题。根据“Because of this there are many different cultures and languages in this area.”可知，撒哈拉沙漠拥有丰富的文化和语言。故选D。
5．推理判断题。通读全文可知，本文主要介绍了撒哈拉沙漠的相关内容，故推出我们最有可能在地理书上看到这篇文章。故选C。
6．C 7．B 8．A 9．B
【导语】本文是一篇说明文。文章主要介绍了椰子名字的由来、生长地点、以及各部分的用途。
6．细节理解题。根据第一段“The word ‘coconut ’ come from the old Spanish...heads of bogeymen!”可知，“椰子”一词来自于西班牙语，代表怪物，早期的人们认为椰子看起来像可怕怪物的脑袋，所以椰子的名字来源于“它的样子”。故选C。
7．词句猜测题。根据第二段“Coconut tree grow in hot countries, especially near beaches. Maybe you’ve seen them on your holiday! ”可知，椰子树生长于热带国家，尤其在海滩边，或许你在度假时看到过他们。此处的them指代上句提到的“椰子树”。故选B。
8．细节理解题。根据第三段“Even the milk inside the coconut is full of goodness. It has calcium (钙), which makes your bones (骨头) strong”可知，椰奶富含钙，可以使你的骨头强壮。所以“椰奶”是对骨头有好处的。故选A。
9．细节理解题。根据最后一段“ The leaves can be used to make baskets”可知，椰子叶可以用来制作篮子。故选B。
10．B 11．A 12．B 13．C 14．B
【导语】本文是一篇说明文，作者阐述了树木的重要性以及没有树木土地就会死掉。
10．细节理解题。根据原文“There are places in North America where great cities once stood. There were gardens, trees and grass. But now these places are like deserts”可知，有些地方曾经是伟大的城市，但现在这些地方就像沙漠。故选B。
11．词句猜测题。根据原文“when a tree is cut down, a new tree is planted in its place”可知，此处“its place”指的是旧树所在的位置。故选A。
12．细节理解题。根据原文“Trees help other plants grow”可知，树木会帮助其他植物生长。故选B。
13．推理判断题。根据原文“Then the farms turned into fields of dry land. This was because few trees grow there”可知，没有树木之后，土地就死了。故选C。
14．推理判断题。根据原文“Now we try to save trees. In many places, when a tree is cut down, a new tree is planted in its place. We don’t want the land to die”可知，树被砍伐之后，土地就死亡了。由此可推断树木的存在维持了当地的生态，帮助我们维持着现有的生活。故选B。
15．D 16．C 17．A 18．B 19．C
【导语】本文主要介绍的是颜色在动物们保护自身安全方面的主要用途。
15．细节理解题。根据“It is because locusts change their colors together with the change of the colors of crops”可知，蝗虫随庄稼颜色的变化而改变自身的颜色，这是它们之所以存活的主要原因。故选D。
16．细节理解题。根据“So they have to hide themselves for lives and appear only at night.”可知，那些自身颜色不同于庄稼颜色的昆虫为了保护自己，只在晚上出没。故选C。
17．细节理解题。根据“This is because they have the colors much like the trees.”可知，熊和老虎因为自身颜色与树木颜色接近才得以保护自己。故选A。
18．细节理解题。根据“An octopus (章鱼) can send out a kind of very black liquid when it faces danger. While the liquid spreads over, the enemies cannot find it. And it immediately swims away.
So it has lived up to now though it isn’t strong at all.”可知，章鱼之所以存活至今是因为它可以释放出黑色液体，借机逃脱。故选B。
19．最佳标题题。本文主要讨论的是颜色在动物们保护自身安全方面的主要用途。因此选项C“动物和害虫的颜色的主要用途”为最佳标题。故选C。
20．A 21．A 22．D 23．C 24．B
【导语】本文主要介绍了河流的重要性。
20．细节理解题。根据“The greatest of all for navigation（航海）, however, is the Amazon in Brazil. ”可知最大的航海河流是亚马孙河。故选A。
21．细节理解题。根据“The lifeline（生命线）of Egypt is the Nile.”可知尼罗河在埃及，故选A。
22．细节理解题。根据“Then people can use the water not only to irrigate（灌溉）their fields but also to make electricity for their homes and industries.”可知从大坝，人们可以用水灌溉和发电。故选D。
23．细节理解题。根据“As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials”可知由于化学物质和其他物质，河水被污染了。故选C。
24．最佳标题题。根据“Many of the world’s great cities are located on rivers, and almost every country has at least one river flowing through it that plays an important part in the lives of its people.”以及全文可知，本文主要介绍了河流的重要性。故选B。
25．A 26．C 27．B 28．D 29．A
【分析】这是一篇记叙文。文章介绍了作者跟他的父母亲一起参观悉尼野生动物园的情况。与普通动物园相比，作者更喜欢野生动物园，因为动物们生活在自然环境中，而在一般动物园里大部分动物都被关在笼子里。除了可爱的袋鼠与考拉熊以外，作者还看到危险的鳄鱼，也观看了一次鸟展。总之，作者非常喜爱这次旅行。
25．题意：野生动物园在哪里？细节理解题。A. In Sydney. 在悉尼；B. In Cairo在开罗；C. In Athens在雅典；D. In Rome. 在罗马。根据第一段“On my recent trip to Sydney with my parents, we visited the Wildlife Park.”可知，野生动物园是在悉尼，故选A。
26．题意：作家假期的精彩纪念品是什么？细节理解题。A. A parrot that could talk. 会说话的鹦鹉；B. A chance to feed a koala. 喂养无尾熊的机会；C. A photo with a koala. 一张无尾熊的照片；D. Food for the kangaroos.给袋鼠的食物。根据第三段后半部分“There were koalas there too. They looked very cuddly(令人想拥抱的). Although we were not allowed to carry them, I got to take a photo with one. It is a wonderful souvenir(纪念品) of my holiday in Sydney.”可知作者的绝妙的纪念品是拍到的考拉的照片。故选C。
27．题意：作者为什么不想接近鳄鱼呢？推理判断题。A. They lived in water. 他们住在水里； B. The writer was afraid of them. 作者害怕他们；C. The writer did not want to feed them. 作者不想给他们喂食；D. The writer did not like the smell of saltwater. 作者不喜欢咸水的味道。根据“The Wildlife Park has plenty of freshwater and saltwater crocodiles. Some of them are really big and scary(吓人的) with huge teeth! I did not want to get too close to them.”可知“我”害怕的原因是因为鳄鱼很大、很吓人，有着巨大的牙，让“我”觉得很害怕。故选B。
28．题意：下列哪一项是正确的？细节理解题。A. The kangaroos are kept in cages in the Wildlife Park. 袋鼠被关在野生动物园的笼子里；B. The writer travelled to the Wildlife Park alone. 作者独自去了野生动物园；C. The writer went to see koalas first. 作者先去看考拉了；D. The writer watched a bird show. 作者观看了一场鸟类表演。根据倒数第二段“There was also a bird show. The keepers showed us different species(种类) they had. I saw an old parrot which could “talk”. It made a great impression on me.”可知，作者看了一场鸟的表演，故选D。
29．题意：参观野生动物园后，作者有何感受？主旨大意题。A. Excited. 兴奋的。B. Unhappy不快乐的；C. Bored无聊的；D. Hopeless绝望的。根据作者游览野生动物园的经历和最后一段中“I enjoyed the trip very much.”可知，作者很兴奋、激动，很喜欢这次游览的经历。故选A。
点睛：首先，快速阅读短文，了解短文大意和背景，然后阅读题目，正确理解题意，再阅读文章，找出与题意有关的内容，仔细想想，根据题目要求正确回答。最后再阅读短文，检查一下，确保正确，提高正确率。
30．C 31．D 32．C 33．D 34．B
【导语】本文向人们介绍了几个春天适合旅行踏青的去处。
30．细节理解题。根据表格中“Also the beautiful lake and mountain scenery create a truly romantic
atmosphere.”可知，美丽的湖光山色营造出一种真正浪漫的氛围。故选C。
31．细节理解题。根据表格中“The Waterfall in Anshun is about 150 kilometers from Guiyang City, of the Huangguoshu Waterfalls Cluster, the Huangguoshu Waterfall is the grandest.”可知，安顺的瀑布距贵阳市约150公里，黄果树瀑布是瀑布群中最雄伟的瀑布。故选D。
32．细节理解题。根据表格中“New Zealand should be on your travelling list, made up of North and South islands, ...”可知，新西兰由北部和南部岛屿组成。故选C。
33．细节理解题。根据表格中“... where you can see the locals bargaining hard for household items, fresh and dried seafood, meals sweets and fruit from mainland Vietnam.”可知，在富国岛你可以看到来自越南大陆的家庭用品、新鲜和干燥的海鲜、膳食糖果和水果讨价还价，没有提到热气腾腾的地热公园。故选D。
34．推理判断题。根据表格中“Click ‘READ MORE’ to download the form, or call us at 400 820 6113, or follow WeChat ID 18321396195 to make your travel plan.”可知，点击“阅读更多”下载表格，或致电400 820 6113，或关注微信ID 18321396195制定您的旅行计划；可推断出文章来源于网络。故选B。
35．D 36．A 37．A 38．D 39．D 40．C 41．B 42．B 43．B 44．C
【导语】本文主要介绍了有关撒哈拉沙漠的知识。
35．句意：撒哈拉沙漠是世界上最大的沙漠之一。
big大的；bigger更大的；the biggest最大的；biggest最大的。one of the+形容词最高级+名词复数，表示“……最……之一……”，故选D。
36．句意：许多人认为这里一直都是沙漠，但他们错了。
but但是；and和；or或者；so所以。前后句是转折关系，应用but连接，故选A。
37．句意：然而，热风使一切都变得非常干燥，什么也长不了。
However然而；Because因为；So所以；And和。根据“At one time the Sahara was under water, and then the water went away and things grew...hot winds made everything very dry”可知前后有转折关系，应用however连接，故选A。
38．句意：然而，热风使一切都变得非常干燥，什么也长不了。
everything一切；anything任何事；something某事；nothing没有什么。根据“hot winds made everything very dry”可知热风使一切都变得非常干燥，所以没有什么可以生长，故选D。
39．句意：白天，撒哈拉可能是世界上最热的地方。
hot热的；hotter更热；hottest最热的；the hottest最热的。根据“in the world”可知此处应用形容词最高级the hottest。故选D。
40．句意：然而，到了晚上，天气就不那么热了。
In后加某年某月某季节；On后加具体的某一天；At后加具体时刻；By在……之前。at night“在晚上”，固定表达，故选C。
41．句意：没有多少大型动物能生活在沙漠里。
much许多，修饰不可数名词；many许多，修饰可数名词；a lot非常；a lots of错误表达。“animals”是可数名词复数，应用many修饰，故选B。
42．句意：骆驼是最著名的，还有一种鹿。
be是，be动词原形；is是，be动词三单形式；are是，be动词的复数形式；has有。此处是there be句型，主语是单数，be动词用is。故选B。
43．句意：这些动物在没有水的情况下可以活很长时间。
with有；without没有；have有；has有，动词三单。根据“These animals can live for a long time...water.”可知是指在没有水的情况下可以活很长时间，应用介词without。故选B。
44．句意：他们不是一直住在一个地方，而是从一个地方搬到另一个地方。
between在……之间；by通过；from从；of……的。from...to...“从……到……”，为固定短语。故选C。
45．It can grow up to 1.5 meters long and weigh up to 160kg. 46．the giant panda was chosen as its symbol 47．Because the area where pandas can live has become smaller. 48．To increase the size of panda reserves. 49．人们为了确保大熊猫不灭绝而努力工作着。
【导语】本文介绍了大熊猫正处于濒危的现状以及人们正在采取的保护大熊猫的措施。
45．根据“A giant panda can grow up to 1.5 meters tall and weigh up to 160kg.”可知，大熊猫的身高可达1.5米，体重可达160公斤。故填It can grow up to 1.5 meters long and weigh up to 160kg.
46．根据“So it is not surprising that the World Wide Fund for Nature chose the giant panda as its
symbol.”可知该句中that引导的主语从句为一般过去时的主动句，改为被动句时，时态保持不变，原句中的宾语the giant panda作主语，原句中的谓语chose改为被动语态，其结构为：was / were+过去分词，主语the giant panda为单数名词，be动词应用was，动词chose的过去分词为chosen，即谓语部分为was chosen，剩余部分保持原来的位置。故填the giant panda was chosen as its symbol。
47．根据“The main reason why pandas are endangered is that the area where panda can live has become smaller.”可知，大熊猫濒临灭绝的主要原因是大熊猫能够生存的区域变小了。故填Because the area where panda can live has become smaller.
48．根据“One of the ways is to increase the size of panda reserves（自然保护区）.”可知，其中一个方法是增加熊猫自然保护区的规模。故填To increase the size of panda reserves.
49．分析句子可知，该句为现在进行时的陈述句；People翻译为“人们”；are working very hard翻译为“努力工作着”；to make sure翻译为“为了确保”；the giant panda翻译为“大熊猫”；does not die out翻译为“不灭绝”。故填“人们为了确保大熊猫不灭绝而努力工作着。”
50．weather and food 51．Geese 52．daylight and the weather 53．The Arctic terns 54．sun, moon and stars
【导语】本文主要向我们科普了鸟类迁徙的相关知识。
50．根据“This means they travel to other places, where the weather is warmer, or where they can find food.”可知，鸟类迁徙是为了寻找更好的气候和食物，故填weather and food。
51．根据“For example, geese fly in noisy V-shaped groups”可知，大雁成群飞行，故填Geese。
52．根据“Many scientists think migration is part of a yearly cycle of changes that a bird goes through. The cycle is controlled by changes in the amount of daylight and the weather.”可知，许多科学家认为迁徙是鸟类每年循环变化的一部分。这个周期是由日照时间和天气的变化控制的，所以推断，鸟类是根据日照时间和天气的变化来判断什么时候迁徙的，故填daylight and the weather。
53．根据“Birds can fly very long distances. For example, the Arctic tern（北极燕鸥）lives close to the North Pole in summer.”可知，北极燕鸥能飞很远的距离，故填The Arctic terns。
54．根据“Birds use the sun, moon and stars for direction.”可知，鸟类利用太阳、月亮和星星来辨别方向，找到回家的路，故填sun, moon and stars。