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第三课时 Section A(3a—3d)
基础巩固
一、根据括号内所给汉语注释写出单词的正确形式(每空一词)
1. The beautiful (瀑布) in the mountain park flows down from high rocks,making a loud and clear sound.
2. Ancient Egyptian (文明) left us many amazing pyramids and interesting stories about pharaohs.
3. The (发展) of online learning has let students study different courses even when they are at home.
4. Using public buses is a cheap (方式)of transportation for students to go to school every day.
5. Few plants can grow in the hot, dry (沙漠), but some special cacti(仙人掌) can live there for a long time.
二、将方框中所给词语的适当形式填入句中，每词仅用一次
measure, desert, develop, by the way, by all means
1. We need to good reading habits to learn English better and faster.
2. , did you remember to bring the books we need for the class
3. We need to the depth of this well to see if it has enough water.
4.—— May I borrow this book
5. They were lost in the for nine days.
三、用所给单词的适当形式填空
1. The (develop) of technology has made it easier for people to keep in touch with each other online.
2. My home is the (far) from school in our class, so I have to get up very early every morning.
3. Ancient Greek (civil) gave us many great ideas about art, science and government.
4. The blue whale is the (large) known living animal on earth.
5. Our teacher often tells us the (important) of reading, as it can open up a whole new world for us.
能力提升
四、阅读下面短文，根据括号内所给汉语注释写出单词的正确形式(每空一词)
Last summer, a group of students visited an 1. (不寻常) waterfall in the southern desert.They felt amazed as soon as they saw it———— the water fell from a great height, crashing into the river below.
The waterfall covers a large area, with a 2. (测量) of 5 square kilometres. Its 3. (表面) shimmers(闪烁) under the sun, and the 4. (深度) of the pool at the 5. (底部)reaches 20 metres.“Let’ s 6. (调查) its history,” said Mia, taking out her notebook.
They walked along the path bit by bit. From the top, they could see vessels sailing on the river far7. (在······下面). Later, they learned about the ancient civilization that once existed here.People used the waterfall as a 8. (方式) to get freshwater. Now, with 9. (发展),it's a popular spot for travellers.
The waterfall left them with curious hearts, eager to explore more 10. (奇观) of the world.
五、完形填空
Scientists say that most polar bears could disappear by the end of the century because of global warming. According to a study in Nature Climate Change, the number of most polar bears will 1rapidly by 2080. There are 2 reasons. One is that the sea ice is melting. Polar bears catch seals(海豹) to 3 on the ice. 4 ice, they have to stay on land. But there are no 5 food on land to support so many bears. The animals could die from hunger. The other reason is that mother bears may not be fat enough to 6 milk for their babies, so some mother bears could stop 7 .
Polar bears are the 8 land animals that eat meat on the planet. They help 9 other kinds of animals. Losing them would break the balance of their living place.
The Arctic(北冰洋) is 10 to about 25,000 polar bears. Arctic sea ice usually melts in spring and summer, and then grows in winter. But now, the 11 is taking longer to grow back. Scientists say that the Arctic is warming twice as 12 as the rest of the planet.
The study also shows 13 it is possible to slow Arctic melting. Greenhouse gas could lead to 14 change. In order to avoid creating greenhouse gas, the world should try to stop burning coal and riding in cars.
Saving the bears is up to us. Holland, one of the writers of the study, says,“I believe there is hope, but humans need to act 15 to make that hope come true.” Let's take action to protect our earth and save polar bears.
( )1. A. develop B. fall C. increase D. improve
( )2. A. one B. two C. three D. four
( )3. A. play B. hurt C. eat D. remain
( )4. A. Without B. Through C. Across D. Except
( )5. A. good B. sweet C. delicious D. enough
( )6. A. protect B. progress C. produce D. prepare
( )7. A. eating food B. having babies C. sleeping D. playing
( )8. A. largest B. loveliest C. simplest D. luckiest
( )9. A. take B. control C. lose D. get
( )10. A. room B. family C. house D. home
( )11. A. sea B. ice C. plant D. animal
( )12. A. suddenly B. normally C. slowly D. fast
( )13. A. that B. when C. if D. whether
( )14. A. food B. life C. climate D. planet
( )15. A. widely B. clearly C. quietly D. quickly
六、阅读理解
The Yangtze River is about 6,300 kilometres long. As the world's third-longest river, it covers one fifth of China's land area. The Yangtze River Economic Zone(长江经济带) covers eleven provinces and municipalities(自治区), making up about forty per cent of China's total population and GDP.
On 26th December, China passed the Yangtze River Protection Law, and it came into force(生效)on 1st March 2021. It is the first law to protect a waterway(水路) in China.
The river is in great need of protection because something is wrong with it. For example, because of overfishing and water pollution, the river's Chinese paddlefish(中华鲟) has died out there. There's also desertified(沙漠化的) land and soil pollution near the river.
According to the law, fishing will not be allowed in all of the Yangtze's natural waterways,including its major tributaries(主要支流) and lakes. If people catch fish in them, they will be fined(罚款) 50,000 to 500,000 yuan.
Digging sand will be strictly limited(严格限制) in the river. Many companies are digging sand along the river. However, this has led to lower water levels on the river. It has caused the river's water to decline.
Companies and factories along the river will need to focus on green development. If their activities do harm to the waterways, they will be moved away, according to the law.
( )1. What does the first paragraph tell us about the Yangtze River
A. Where it joins the sea. B. Why it's important.
C. What problems it has. D. How deep it is.
( )2. What do we know about the Yangtze River Protection Law
A. It was passed on 1st March 2021.
B. It came into force about ten years ago.
C. It's the first law to protect a waterway in China.
D. It only protects the fish in the river.
( )3. What does the underlined word“decline” in the fifth paragraph probably mean
A. Increase. B. Disappear. C. Reduce. D. Improve.
读后词汇拓展猜出画波浪线单词的词性和中文意思，以及画波浪线短语的中文意思，并收入自己的小词典。
melt
support
3. lead to
第三课时 Section A(3a—3d)
一、1. waterfall 2. civilization 3. development 4. means5. desert
二、1. develop 2. By the way 3. measure 4. By all means5. desert
三、1. development 2. farthest 3. civilization 4. largest5. importance
四、1. unusual 2. measurement 3. surface 4. depth5. bottom 6. research 7. below 8. means9. development 10. wonders
五、1—5 BECAD 6—10 CBABD 11—15 BDACD六、1—3 BCC
读后词汇拓展
1. v.融化 2. v.支持 3.导致

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