1、 Measures to prevent sandstorms哈爾濱市第哈爾濱市第11中學(xué)中學(xué) 蔡紅春蔡紅春Haze in Beijing Haze in Beijing Sandstorms in Beijing sandstorms in Beijing Quiz Show(搶答時(shí)間搶答時(shí)間)take in carbon dioxide1.Sandstorms are strong , dry winds . They can carry a lot of sand. (para 2)5.If a sandstorm strikes the city,youd better not go

2、out according to weather experts. (para 5)3.Sandstorms in China seem to have increased because of desertification. (para 3)4.At times the storms last all day and traffic moves very slowly because the drivers cant see clearly. (para 4)2. It was a frightening experience because he was stuck in a sands

3、torm. ( para 2)6.Trees are being planted by the government in order to stop the desert coming nearer. (para 6)Review TimeTry to find similar sentences in the reading on p32. They are strong , dry winds that / which carry a lot of dust. To have been caught in a sandstorm was a terrible experience. 1.

4、Sandstorms are strong , dry winds .They can carry a lot of sand. (para 2)2. It was a scary experience because he was stuck in a sandstorm. (para 2)Try to find similar sentences in the reading .Review Show3.Sandstorms in China seem to have increased because of desertification. (para 3) Sandstorms in

5、China appear to have increased as a result of desertification. Try to find the similar sentence in the reading.Review Show4.At times the storms last all day and traffic moves very slowly because the drivers cant see clearly. (para 4)The storms sometimes continue all day and traffic moves very slowly

6、 because the thick dust make it difficult to see clearly.Try to find similar sentences in the reading.Review ShowWhen a sandstorm arrives in the city , weather experts advise people not to go out . 5.If a sandstorm strikes the city,youd better not go out according to weather experts. (para 5)To prev

7、ent the desert coming nearer, the government is planting trees. 6.Trees are being planted by the government in order to stop the desert coming nearer. (para 6)Para 1 Para 2Para 3Para 4Para 5Para 6a major disaster-sandstormsdescriptions of sandstormscauses of sandstromseffects of sandstorms measures

8、to prevent sandstormsadvice of the weather expertsReview TimeMatch the main ideas of each paragraph.What effective measures should we take to prevent sandstorms ?Challenge TimeLets make the sentence long. 擴(kuò)展句子擴(kuò)展句子The best measure is to plant trees. The best measure to prevent sandstorms is to plant

9、trees. The best measure to prevent sandstorms is to plant trees. Whats more, planting grass is necessary. So lets take action now ,or the earth would become dangerous and lifeless. As is known to us all,the best measure to prevent sandstorms is to plant trees. Whats more, planting grass is necessary

10、. So lets take action now, or the earth would become dangerous and lifeless. The best measure to prevent sandstorms is to plant trees. Whats more, planting grass is necessary. 添加定語(yǔ)添加定語(yǔ)添加插入成分添加插入成分添加并列句添加并列句添加非限制性定語(yǔ)從句添加非限制性定語(yǔ)從句簡(jiǎn)單句簡(jiǎn)單句Only by planting trees can we prevent sandstorms coming nearer. The

11、government is fighting desertification by planting trees in order to prevent sandstorms coming nearer.Nothing is more important than planting trees .Therefore, lets take action now. More trees should be planted in order to stop sandstorms. Faced with sandstorms, we should make it a duty to plant mor

12、e trees. Its because trees are so important that we should plant more trees. Lets use various sentences. 句式多樣化句式多樣化狀語(yǔ)從句狀語(yǔ)從句倒裝句倒裝句否定句否定句強(qiáng)調(diào)句強(qiáng)調(diào)句被動(dòng)語(yǔ)態(tài)被動(dòng)語(yǔ)態(tài)非謂語(yǔ)動(dòng)詞非謂語(yǔ)動(dòng)詞Show Time Looking forward to your excellent sentences.My measures to prevent sandstorms Wherever we live ,whoever we are ,we can do something to protect the environment . For the government ,laws should be passed to control pollution and more money should be invested . Small things can make a big difference. In a word ,what the most important thing to prevent