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(共24张PPT)
Unit 7 The natural world
Part 1 Welcome to the unit
答 案 呈 现
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1
penguin
coral
climate
rainfall
ecosystem
2
3
4
5
1
half of
looks like
is home to
between; and
so; that
2
3
4
5
1
is home to
little rainfall
half of; is
is so high that
lies between; and
2
3
4
5
基础提优练
答 案 呈 现
1
A
D
B
E
F
2
3
4
5
1
C
C
D
B
2
3
4
综合提优练
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一、根据句意及汉语提示或首字母，写出句中所缺单词
1. Usually the mother _________ (企鹅) looks after her baby when the father is hunting for fish.
2. Scientists keep on studying how _________ (珊瑚) gets used to changing ocean temperatures.
penguin
coral
3. Many countries are working together to solve the global problem of _________ (气候) change.
4. Lixia is a time when the temperature increases quickly with heavy _________ (降雨量).
5. The forest e is like a big lively town where plants and animals depend on each other.
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climate
rainfall
cosystem
二、从方框中选择适当的短语并用其正确形式填空
1. It’s said that over _________ the area is covered with ice all year round.
2. China’s “Sky Eye” __________ a really big pan. It can help scientists search more in space.
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look like between...and half of so...that be home to
half of
looks like
3. With a height of about 600 meters, Mount Huaguo __________ different kinds of animals and plants.
4. Sometimes it’s difficult for us to make a balance _________ study _________ playing.
5. The earthquake in this city was _________ sudden _________ it brought great pain and loss to people.
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look like between...and half of so...that be home to
is home to
between and
so
that
三、句子翻译
1. 这片古老的森林，宛如一个隐秘的王国，是许多动物的家园。
The ancient forest, like a hidden kingdom, _________ _________ _________ many animals.
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is
home to
2. 沙漠地区几乎没有降雨，所以植物很少。
There is _________ _________ in the desert area, so there are few plants.
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little rainfall
3. 在这个地区，一半的土地都被规划用来种植小麦。
In this area, _________ _________ the land _________ planned to grow wheat.
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half of is
4. 这座山如此之高，以至于山顶常年积雪。
The mountain _________ _________ _________ _________ its peak is covered with snow all year round.
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is so high that
5. 这个小镇位于两座大山之间，风景十分秀丽。
The small town _________ _________ two big mountains _________ has very beautiful scenery.
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lies between
and
四、从方框中选择适当的句子补全对话 (有两项多余)
A: Dad, how much do you know about China
B: 1. _______ China is a big country with a history of about 5,000 years. It attracts many tourists from all over the world every year.
A. Just a little. B. What about rivers C. I don’t know it at all.
D. Are there any beautiful mountains
E. They’re the birthplaces of Chinese culture.
F. I’ll read it. G. The Chinese are very friendly.
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A
A: Is that so 2. _______
B: Yes. And many of them are famous, such as Mount Taishan, Mount Huangshan and Mount Emei.
A: 3. _______
A. Just a little. B. What about rivers C. I don’t know it at all.
D. Are there any beautiful mountains
E. They’re the birthplaces of Chinese culture.
F. I’ll read it. G. The Chinese are very friendly.
D
B
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B: There are many rivers in China. Among them, the Yangtze River is the longest one and the second longest one is the Yellow River. 4. _______
A: Anything else
A. Just a little. B. What about rivers C. I don’t know it at all.
D. Are there any beautiful mountains
E. They’re the birthplaces of Chinese culture.
F. I’ll read it. G. The Chinese are very friendly.
E
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B: Sorry. That’s all I know. If you want to learn more, you can read The Guide to China. It’s a book about China.
A: Thanks. 5. _______
A. Just a little. B. What about rivers C. I don’t know it at all.
D. Are there any beautiful mountains
E. They’re the birthplaces of Chinese culture.
F. I’ll read it. G. The Chinese are very friendly.
F
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五、阅读理解
The Solomon Islands is a country in the Pacific Ocean. Last October, a group of scientists went there on a research trip. Guess what they found The largest coral colony (珊瑚群) in the world!
Coral reefs may look like rocks, but they are made up of tiny animals called “polyps (珊瑚虫)”.
Many polyps of the same kind form a colony. Usually, a coral reef is built out of many different colonies. This newly found coral reef, however, is just one colony. It is made up of around a billion polyps of the same kind. This huge colony is about 34 meters wide, 32 meters long and 5.5 meters high. In all, it covers about the same area as five tennis courts. It is so large that it can be seen from space. It is also very old— between 300 and 500 years!
Coral reefs play a big role in the ocean. They are home to many sea animals, such as shrimp, crabs and fish. Healthy coral reefs also protect shorelines (海岸线) from flooding during storms.
Sadly, over the years, climate change has warmed up the world’s oceans. This has caused many coral reefs to die and turn white. But this huge coral colony is very healthy.
It may be able to live in warmer waters. That is good news, as this colony may help produce new coral colonies that can live in warmer waters. The huge coral colony is also important for the Solomon Islands. It was found in the waters near one of the islands, Malaulalo. The country has protected its waters in the past! It will protect the area even more in the future.
( )1. The newly found coral reef is very special because it ______.
A. is very young
B. is much healthier than other coral reefs
C. is so large and made up of just one colony
D. is found in very warm waters
【点拨】细节理解题。根据文章第二段“This newly... around a billion polyps of the same kind.”可知，新发现的珊瑚礁特殊之处在于它由同一种珊瑚虫构成，是一个单一的巨大群落。故选C。
C
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( )2. What is one of the functions of healthy coral reefs according to the passage
A. It provides food for seabirds.
B. It helps maintain the balance of the ocean.
C. It offers a habitat for numerous sea animals.
D. It promotes the growth of seaweed in the ocean.
【点拨】细节理解题。根据文章第三段“They are home to many sea animals, such as shrimp, crabs and fish.”可知，健康的珊瑚礁为许多海洋动物提供了栖息地。故选C。
C
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( )3. The newly found coral reef is good news for the environment, because it ______.
A. may slow down climate change
B. can be used to save dead white coral reefs
C. can cool down the waters
D. may help produce new coral colonies
【点拨】推理判断题。根据文章第四段“That is good... can live in warmer waters.”可知，该珊瑚群的意义在于可能帮助培育适应温暖水域的新珊瑚群，从而应对气候变化。故选D。
D
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( )4. What would the future of the coral colony near Malaulalo be like
A. It will be harmed by climate change.
B. It will be under the country’s protection.
C. It will be moved to a warmer place.
D. It won’t produce more new coral colonies.
【点拨】细节理解题。根据文章最后一段“The country... more in the future.”可知，所罗门群岛未来会加强对该珊瑚群的保护。故选B。
B
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