北师大版高中英语选择性必修第一册·UNIT3 TOPIC TALK（课件+练习）
展开课时把关练
Part I TOPIC TALK
第一部分 基础知识练
I. 单词拼写
1. These wild animals are under careful ________(保护).
2. Now ________(塑料的) containers are strictly banned in our country.
3. The old bridge was totally ________(毁掉) in the heavy rain last week.
4. A lot of things, such as iron, glass and paper, can be ________(回收).
5. This lecture is rather ________(有教育意义的) for all the teenagers.
6. There is a ________(威胁) that the weather will drop sharply in the coming few days.
7. Wildlife is not allowed to be ________(猎杀) in this mountain areas.
8. Can those ________(绝种的) animals return to the earth with the help of modern science?
9. There is a(an)________(紧急的) need for food and water in this flooded area.
10. Please ________(切换) to CCTV1．I’d like to watch news programme.
II. 单句语法填空
1. This is the story of wildlife ___________(conserve) in the age of mass extinction.
2. Once ___________(destroy), brain cells do not regenerate (再生).
3. The waste paper is sent for ____________(recycle).
4. The talk was both ___________(inform) and entertaining.
5. I forgot to switch _________ my laptop, and now the battery is dead.
6. Everyone has ________ role in advancing purpose.
7. He entered the country _________(illegal).
8. Little Tom wanted to go _________(hunt) with his uncle.
9. Hundreds of tree species face __________( extinct).
10. She was called away from the meeting to take an _________(urgency) phone call.
第二部分 能力提升练
I. 完成句子
1. You’ll have to practice your spoken English _______________________________(尽可能多).
2. Her brother _____________________________________(起着非常重要的作用) this company.
3. We urge that both sides ______________________________(把市民利益放首位) in any event.
4. We should _________________________(尽我们的职责)to protect the endangered species.
5. We’ll ________________(砍倒) the big tree in front of our house because it is falling down.
II. 语法填空
主题：人与自然（环境保护） 话题：保护生态 体裁： 记叙文 建议用时：6＇
It took years 1 （complete） the Qinghai-Tibet Railway. The construction workers 2 （overcome） the most difficult engineering challenges，one of which was how to protect the delicate ecosystem. To allow the wild animals to move safely and freely in their 3 （nature） habitat，they built thirty-three passages under the railway. To prevent damage to wetlands and grasslands，675 bridges with a total length of about 160 kilometres
4 （build） between Golmud and Lhasa. They even moved 140，000 square metres of wetland to 5 new area in order to protect its distinct ecosystem. 6 （locate） at over 5，000 metres above sea level，Tanggula Station is the highest railway station in the world. In locations such as this，the thin air，changeable weather and high levels of UV radiation presented perhaps the 7 （great） challenge for railway workers. To make sure they stayed healthy，several oxygen-making stations were constructed. To protect Cuona Lake 8 construction waste，the railway workers used thousands 9 thousands of sandbags to build a twenty-kilometre wall along the lake. In a word，the railway workers built our “impossible” railway with the care that the environment deserves. It 10 （true） is an extraordinary “Sky Railway”.
第三部分 阅读拓展练
I. 阅读理解（7选5）
主题：人与自然（环境保护） 话题：帝王蝶 体裁：说明文 建议用时：6＇
The world is losing monarch butterflies at a striking rate，as kinds of human activities destroy natural habitats. 1 Climate change，with its extreme storms，prolonged droughts and warming temperatures，is to destroy the forest that serves as the butterfly’s winter home.
Scientists believe，to help these lovely butterflies，it is necessary to create an ecosystem where the butterflies will be able to survive. They’ve decided to start a monumental project. 2
“It’s an idea that may sound crazy，”said Cuauhtemoc Saenz-Romero，a forest geneticist，“but by the end of the century，it may be absolutely needed.”
The butterflies that winter here seek shelter in the oyamel firs. 3 The firs protect the butterflies from chilly winter rain and create a microclimate cold enough to keep the butterflies in a state of hibernation but not so cold as to kill them.
4 The region is warming at such an accelerated pace that the trees won’t be able to adapt，scientists say，and will need help migrating to areas where the climate is predicted to be suitable for them in future years.
Over the last several years，the team of researchers has overseen the relocation of about 1，000 young fir plants，which were growing at lower altitudes，up to higher—and cooler—elevations. 5 They are now establishing the trees at even higher altitudes on other nearby mountains—seeding ecosystems now that monarchs could potentially use later if temperatures continue to rise.
Every winter is witnessing tens of thousands of butterflies in the new forests，some fluttering about and others resting in massive clumps on the firs，their bodies obscuring the branches and trunks.
A. They hope to expand the project.
B. There is still hope to restore the forests.
C. Their dense tops act as an umbrella for the butterflies.
D. But the biggest threat yet has only recently come into focus.
E. They are trying to move an entire forest 1，000 feet up a mountain.
F. Scientists fear that climate change may kill off these firs altogether.
G. The project is believed to protect the butterfly and the natives as well.
II. 完形填空
主题：人与自然（环境保护） 话题：野生动物和热带雨林保护 体裁：记叙文 建议用时：12＇
My interest in wildlife and rainforests began at an early age. When my parents introduced me to nature books and magazines，I was 1 by the pictures of strange animals living in distant lands. As I got older，my mother and father 2 my learning by taking me on trips to other countries. Therefore，I could see wildlife first hand. I grew to 3 appreciate places of natural beauty and 4 the environment around me.
Over the years I have seen many beautiful 5 and met many wonderful people. I have swum with sea lions in the Galapagos Islands, 6 lemurs(狐猴)sing and dance in Madagascar, and had many other amazing 7 . I have also become increasingly aware of the changes 8 by human activities. Some of the special places I so 9 are no longer around today. My inspiration to protect rainforests comes from a particular 10 in the rainforest of Borneo when an area of 11 was destroyed by loggers（伐木工）.
Today I 12 a great deal of time reading，writing，traveling to rainforests，and talking with scientists doing research on them. My 13 is to raise awareness，interest，and appreciation of wild-lands like rainforests. It is not too 14 to save these special places and I hope that my work will someday inspire people to make a 15 in the world around them.
1. A. frightened B. comforted C. fascinated D. disturbed
2. A. chose B. encouraged C. decided D. explored
3. A. possibly B. only C. mostly D. greatly
4. A. respect B. destroy C. balance D. govern
5. A. figures B. gifts C. places D. tools
6. A. made B. watched C. heard D. helped
7. A. adventures B. dreams C. experiments D. questions
8. A. prevented B. needed C. shown D. caused
9. A. disliked B. forgot C. enjoyed D. climbed
10. A. experience B. solution C. challenge D. field
11. A. mountain B. rainforest C. desert D. plain
12. A. waste B. spend C. avoid D. miss
13. A. method B. major C. strength D. goal
14. A. fresh B. old C. late D. serious
15. A. promise B. decision C. plan D. difference
参考答案
第一部分 基础知识练
I. 单词拼写
1. conservation 2. plastic 3. destroyed 4. recycled 5. informative
6. threat 7. hunted 8. extinct 9. urgent 10.s witch
II. 单句语法填空
1. conservation 2. destroyed 3. recycling 4. informative 5. off
6. a 7. illegally 8. hunting 9. extinction 10. urgent
第二部分 能力提升练
I. 完成句子
1. as much as possible 2. plays an important role/part in
3. (should) put the public interest first 4. do our best 5. cut down
II. 语法填空
1. to complete 2. overcame 3. natural 4. were built 5. a
6. Located 7. greatest 8. from 9. and 10. truly
第三部分 阅读拓展练
I. 阅读理解（7选5）
1. D 2. E 3. C 4. F 5. A
II. 完形填空
1. C 2. B 3. D 4. A 5. C 6. B 7. A 8. D 9. C 10. A
11. B 12. B 13. D 14. C 15. D
