模块5 Unit 2 Welcome and Wordpower 教学案(译林牛津版高二英语必修五教案教学设计)
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I. 根据首字母填空
Over the years, human beings have been c________ nature and developing the e_______. They are busy inventing and developing things that will make our lives e______. However, we are now being f_____ with serious p______. Many problems are beyond our c_____. The greenhouse effect is causing an increase in the world’s t_________. The melting of the ice in the North Pole and South Pole is causing our island, and cities along the coast to slowly s_____. The holes in the ozone layer are making Earth less s________ to live. So we should take m_______ to protect the environment, otherwise, the next generation of us may s_____ and in the near future, we may even find difficult to s______.
II. 根据所给提示，完成下面的短文
Dangers: Our mother earth is facing
Abusing land
The land is ⑴_______ to all human beings. It supports us and offers us food. But in recent years human activities have seen us abuse（虐待）it. This abuse ⑵__________________（已经导致） poverty and hunger for millions.
Deforestation（森林砍伐）
Forests, which have the power to change carbon dioxide into oxygen, are the world’s lungs. They are home to ⑶____________（许多）species, and are also an important source of building materials and firewood. But almost all forests are ⑷_______________ （正受到威胁）in the world.
Forest fires, clearance for agriculture and mining are eating away our forests. The world has lost 80 percent of the original forests ⑸_____________________________（曾经覆盖地球的）.
Rapid urbanization（城市化）
Towns and cities are often developed on former farmland and forests. As urban areas grow, land ⑹_____________________（曾经长食物的）disappears under the concrete（水泥）.This means the remaining land has to produce more food to support the ⑺i_______ number of people. Poverty increases stress on the land, especially in Asia ⑻______________________________（那里75%的人是穷的）.
Desertification（沙漠化）
Abusing the land leads to land degradation（恶化）,which means the land supports fewer and fewer plants and animals. Extreme land degradation results in desertification—when land becomes a desert and is unable to support any vegetation. Desertification ⑼_________________________（是由几个因素造成的）.They ⑽i________ deforestation, poor land and water management, overuse of pesticides（杀虫剂）,clearance of poor land for growing food and air pollution.

Module 5 Unit 2 Word Power
I. 用所给词语的适当形式填空：
1. It is believed that water pollution has changed the ______________ of the Taihu Lake, causing some plants and living creatures to grow too fast and others to die out.
2. To preserve scenic spots, the local authority lays great stress on developing ___________.
3. They are planning to build a(n) _____________ friendly hotel so as to save energy and protect the environment.
4. In order to protect the rivers from water pollution, the citizens are required to use __________ washing powder in household washing.
5. The mayor promised that they would do whatever they could to fight against ____________ caused by chemical factories.
6. As far as I know, __________ has been a topic of the intense debate and a concern for many scientists, policy-makers, and citizens for at least the past twenty years.
7. Everyone should be a(n) _____________ when sightseeing in scenic spots, especially in nature reserve areas.
8. One of the biggest advantages of ___________ is that it can be obtained in any place around the world so long as there is sunshine.
II. 翻译以下句子：
1. 我们使用太阳能，而不是开挖地球，寻找矿物燃料。
2. 不要住在向河里倾倒废料的工厂旁边。
3. 他想有一个旅游的机会，但又不会对当地的生态环境造成破坏。
4. 我们甚至都检查过了，以确保我们建筑所用的金属都是环保的。
5. 你能想出人们破坏环境的其他方式吗？
6. 我们的生存取决于健康的环境。
Keys (only for reference)
M5U2 Welcome
I.
1)conquering 2)economy 3)easier 4)faced 5)problems/pollution 6)control 7)temperature 8)sink 9)suitable 10)measures 11)suffer 12)survive
II. 1) home 2) has resulted in/led to
3) a great number of/many/lots of 4) under threat/being threatened
5) that once covered the earth 6) that/which once grew/produced food 7)increasing 8) where 75 percent of people are poor
9)is caused by several factors 10)include
M5U2 Word Power
I. 1) ecology 2)eco-tourism 3) environmentally 4) eco-friendly
5) pollution 6) global warming 7)ecotourist 8) solar energy
II. 1. We use solar energy, instead of digging up Earth to find fossil fuels.
2. Don’t live near the factories that pour the waste into the river.
3. He wanted a chance to have a holiday, but not to cause damage to ecosystem of the area.
4. We even checked to make sure that the metals we used to build were environmentally friendly.
5. Can you think of other ways in which people damage the environment?
6. Our survival depends on a healthy environment.

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