高二英语sandstorms-in-Asia课件4

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1 Weather experts have f________ orecast another big sandstorm in a week’s time. 2 It’s f__________ to be outside in a sandstorm. rightening 3 I was in a big storm. Luckily, we all s_______. urvived
PRACTICE
9 She took a knife along with her for her protection 保护). own_________( 10 He ___________( complained 抱怨) that the office was not businesslike.
Complete the sentences
• • • • •
• • •
1) The winds in a sandstorm can sometimes prevent you from seeing the sun _________________________ 2) When Ren Jianbo was living in Inner Mongolia he experienced a terrible sandstorm _____________________________ 3) Sandstorms in China appear to have increased desertification. because of _____________ 4) Cutting down trees and digging up grass can cause deserts and sandstorms to increase ____________________________ 5) The government is planting trees to the west of prevent the desert coming nearer Beijing to ___________________________
Read the articles carefully and answer questions.
1.What happened to Ren Jianbo 1.He experienced a terrible sandstorm. when heclimate was a changes child in and the people desert? 2.Because cut down trees and dig up grass, land 2.Can youdesert, explain why the becomes then desertification happens. desertification happen?
PRACTICE
1 They are starting a campaign ________(运动) against smoking.
process 过 2 Do you know the chemical________( 程) involved in the change? 3 The weatherman has forecast _______(预报) it will be fine tomorrow.
Decide if the following sentences are True or False .
mass 1.A government campaign has been started to help solve the sandstorm problem. 2.The winds in a sandstorm can sometimes prevent you from sena is the sandstorm centre in Central Asia. part of 4.The Chinese Central Weather Station can only forecast a sandstorm some months weeks before it arrives. 5.It is frightening to be cycling in a sandstorm. 6.The government is planting trees to the east west of Beijing to prevent the desert coming nearer.
citizen
cycle (v)
dust
expert
forecast 1. to ride a bicycle
process situation
survive
cycle
2. someone who knows a lot about a particular subject expert 3. things that happen one after another , and have a result process 4. someone who lives in a particular town or country citizen 5. very small bits of dirt or earth , on the ground or in the air dust 6. to continue to live after a difficult or dangerous survive situation or event forcast 7. to say what will probably happen 8. everything that is happening at a particular time situation
fast reading :
Read and try to find the answer to the question .
How many parts can this article be divided into ?
Part I (para 1) : major disaster in Asia- standstorm Part II (para2-5) : discription cause influence suggestion Part Ⅲ (para6): measures
PRACTICE
4 We are trying our best to fight against all kinds of pollution ________(污染). 5 She tried hard to provide a proper ____________( environment 环境) for her child.
3.Traffic moves very 3.What happens to slowly trafficbecause when the thick dust makes it difficult to see. sandstorms take place? Why? 4.Experts advise people not to go out. If 4.What shall people do if a cycling in the sandstorm, one had sandstorm better wear aarrives? mask.
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4 There’s a lot of d____ ust on the flood.
5 Sandstorm is a long p_______ rocess that take many years. 6 Many Beijing c______ yclists cycle to work.
PRACTICE
6 The meeting went on in a good atmosphere 气氛). ___________( 7 We have enough evidence _______ (证据) to give him. 8 Your mother is really _________ concerned (关心) about you.