(
课件网) Unit13 We’re trying to save the earth! SA 1a-2d 人教版 九年级全册 U13 A1 Language points Language points 1. We’re trying to save the earth!我们正在竭尽全力拯救地球! try to do = try one’s best to do 尽力做某事 try doing sth. 试着做某事 try on 试穿 try out 尝试；试验；试试 根据语境及汉语提示用try短语的适当形式完成句子。 1) I went to the tailor’s (裁缝) to _____ my new suit. 2) Let’s _____ your method. It seems very good. 3) I think you should _____ improve your English. 4) Let me _____ (试着讲讲) the story. try on try out try (your best) to try telling 2.noise pollution 噪声污染 【知识详解 】 1)noise n.噪声 make noises=make a noise 制造噪声 the noise of the traffic 交通噪声 If you make noises at night, my dog will bark. 2）辨析：noise, sound与voice Don't make_____! Light travels much faster than_____. The boy has a beautiful_____. Language points noise n.噪声，嘈杂声 make noises=make a noise 制造噪声 voice一般指人的声音，也指鸟叫声 sound泛指自然界的各种声音 voice sound noises 3)pollution〔不可数名词〕污染，污染物 动词形式为pollute（污染）； 形容词形式为polluted（被污染的） air pollution 空气污染 water pollution 水污染 land pollution 土地污染 Language points 用pollute的正确形式填空 There's lots of _____ in the air here. The river has been _____ by waste water from the factory. Don't pour_____ water everywhere. pollution polluted polluted 3.Yes, but people are throwing litter into the river.是的，但人们正在把垃圾扔进河里。 Don’t litter in parks.不要在公园里乱扔。 2）辨析：litter,rubbish 与 waste 三者都可用作名词，均含“垃圾，废弃物”之意。 litter 指随手丢弃的垃圾 Please do not drop litter everywhere.请不要到处扔垃圾。 rubbish 指任何成堆的、破损的、用过的或无用的东西 You'd better not throw the rubbish on the ground. 你最好不要把垃圾扔在地上。 waste 指任何被丢弃的东西 There will be no waste as long as we have a little creativity.只要我们有点儿创意就不会有废物。 Language points 1) litter ①不可数n.垃圾；废弃物 ②v. 乱扔 4.Everyone in this town should play a part in cleaning it up！ 这个镇上的每个人都应该参与清理它！ Language points take/play a part in “参与……” “在……方面起作用； “在……中扮演角色” =play a role in play a part in doing sth 参与做某事 Friends play an important/role in our lives. 朋友在我们的生活中发挥着重要作用。 5. Well, to cut down air pollution, we should take the bus or subway instead of driving. 为了减少空气污染，我们应该乘公共汽车或地铁而不是开车。 cut down 消减；减少使用；砍倒 cut down 砍倒；减少 People cut down many trees so a lot of animals lose their homes. 人们砍倒了很多树，因此很多动物失去了它们的家。 cut off 切掉;打断； The doctor had to cut off his arm to save his life. 为了挽救他的生命，医生不得不将他的胳膊截肢。 cut out 删除 You can cut out the unimportant details. 你可以删掉不重要的细节。 cut up 切碎 Cut up the meat, please. 请把肉切碎。 instead & instead of instead adv. “代替；反而”，作状语。 instead of “代替；而不是”，后接名词、代词、 v.-i ... ...
