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TOPIC 2 ALL THESE PROBLEMS ARE VERY SERIOUSSECTION BReviewWhat s the meaning of the word “pollution ”?Do you like it ?Why?What kind of pollution do you know ?What kind of weather do you like ? sunny or windy ? LISTEN TO THE TAPE AND ANSWER THE QUESTION How many people in this dialog ? Who are they?What is the weather like ?What are they talking about ? What cause these sandstorms?What causes these sandstorms?Cut down too many treesIs cutting down trees harmful to human beings? Why?A lot of rich land has changed into desert Read 1a and answer these questions How can the trees affect the weather?The trees can stop the wind from blowing the earth away . The trees can save water.The trees can prevent the water from washing the earth away .重点短语重点短语 what bad weather !=how bad the weather is ! What +(a/an)+形容词形容词+名词名词+主语主语+谓语谓语How +形容词形容词+主语主语+谓语谓语多大的树呀多大的树呀. . 多漂亮的房子呀多漂亮的房子呀! !他真帅呀他真帅呀 天气真好呀天气真好呀With 带有带有, 伴有伴有 他是一个戴眼镜的老师他是一个戴眼镜的老师, ,在老师的帮助下他完成的家庭作业在老师的帮助下他完成的家庭作业.cut down 砍倒砍倒 cut off 切断切断Change into 变成变成.木头已经变成了纸木头已经变成了纸学校变成了我的家学校变成了我的家Stop/prevent sb/sth from doing sth 阻止某人阻止某人/某物做某某物做某事事 老师阻止学生们在教室里乱跑老师阻止学生们在教室里乱跑. . 政府阻止人们砍伐太多的树木政府阻止人们砍伐太多的树木. . 没有人能阻止他离开学校没有人能阻止他离开学校Although=though尽管尽管绝对不绝对不能与能与but连用连用经过我很累经过我很累, ,但是我很高兴。但是我很高兴。尽管我很丑尽管我很丑, ,但我很善良。但我很善良。虽然我很瘦虽然我很瘦, ,但我很强壮。但我很强壮。虽然他起的很早，但他还是迟到虽然他起的很早，但他还是迟到了。了。Blow away 吹走吹走Wash away 冲走冲走Be harmful to = do harm to光污染对我们的眼睛有害光污染对我们的眼睛有害. .噪音对我们的耳朵有害噪音对我们的耳朵有害. .吸烟对我们的健康有害。吸烟对我们的健康有害。MAKE A STORY ACCORDING TO 1CYou can start it like this : long long ago, there were many trees in my hometown the air was fresh and the water was clean but one day Thank you for coming goodbye
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