Unit 13 We're trying to save the earth！ Section A 课件 2023-2024学年人教版九年级英语全册

Unit 13　 We're trying to save the earth！ Section A(课前) ——自主预习，扫清障碍 Section A 重点短语及目标句型预习。 1.It used to be so clean! 【释义】 它曾经是那么干净！ 【精讲】 used to do sth.过去常常做(现在不做了，只用于过去时态，表示过去的习惯) be used to doing sth.习惯于做某事，to是介词，后接动名词(v.－ing) 第 ‹#› 页 【运用】 (1)我哥哥过去总是很早起。(现在不这样了)My brother ___________ (get) up early. (2)他习惯饭后散步。He ___________________ (take) a walk after dinner. used to get is used to taking 第 ‹#› 页 ( )1)My sister __________ be lazy.But now she's working really hard. A．used to　　　 B．is used to　　　 C．was used to 　　　 D．be used to ( )2)After dinner, he used to __________ computer games, but now he gets used to_________. A．play; walk B．playing; walking C．play; walking D．playing; walk A C 第 ‹#› 页 2.To cut down air pollution, we should take the bus or subway instead of driving. 【释义】 为了减少空气污染，我们应该乘坐公共汽车或者地铁，而不是开车。 【精讲】 cut down减少，砍伐；cut off切断；cup up切碎；cut in插队；cut out 删除 【运用】 (1)你最好能把这篇文章减少到两千个单词左右。 You'd better ______ the article _______ to about 2，000 words. (2)他们砍倒了很多大树。They ___________ many big trees. cut down cut down 第 ‹#› 页 ( )1)Our country is taking action to __________ air pollution. A．cut down　　　　 B．cut up　　　　 C．cut out　　　　 D．cut off ( )2)—You are too busy on weekends.You need to relax yourself, Dave! —You are right! I have to __________ a few of my activities. A．cut off B．cut down C．cut up D．cut out A B 第 ‹#› 页 3.Bike riding is good for health and it doesn't cost anything! 【释义】 骑自行车对健康有好处，它并不花费任何成本！ 【精讲】 cost v. 花费；使付出；使花许多钱 【运用】 辨析：spend, cost, take, pay (1)物＋cost＋金钱 这件大衣花费了我200元。The coat ______ ______ 200 yuan. (2)人＋spend＋时间/金钱＋(in) doing sth./on sth. Tom 花了半个小时做英语作业。 Tom _______ half an hour ______ his English homework. cost me spent on 第 ‹#› 页 (3)It takes/took sb....to do sth. 上班花费他15分钟。It _____ him 15 minutes ____ ____ _____ _______. (4)人＋pay/paid＋金钱＋for...为……支付…… 我花了20美元买这双鞋。I ______ 20 dollars ______ this pair of shoes. takes to go to work paid for 第 ‹#› 页 ( )1)Before stamps, people didn't ________ for the lette