英语人教版九年级下册同步教学课件unit13 we're trying to save the earth单元易错清作业

这是一份英语人教版九年级下册同步教学课件unit13 we're trying to save the earth单元易错清作业，共11页。

Unit 13　We're trying to save the earth!单元易错清【精析】四者都有“花费”的意思， 但用法不同。cost主语通常是物， 常用于sth. cost(s) sb. some money句型中， 意为“某物花费某人多少钱”；spend主语通常是人， 常用于spend some money/time (in) doing sth.结构中， 意为“花费金钱/时间做某事”， 也用于spend money/time on sth.结构中， 意为“在某方面花费金钱/时间”；take常用it作形式主语， 常用于It takes/took sb. some time to do sth.句型中， 意为“做某事花费某人多长时间”；pay主语是人， 常用于sb. pay(s)/paid some money for sth.句型中， 意为“某人为某物花费多少钱”。易错点一：cost， spend， take与pay的辨析【精练】( )1.—Do you often get online?—Yes. I ___________lots of time on it. A．cost B．spend C．take D．pay( )2.—Your new skirt looks very nice. How much is it?—It ______me ￥200. A．cost B．paid C．spent D．afforded( )3.—It will _________only about 50 minutes to travel to Mount Wuyi by high­speed railway. —Wow, how exciting！I can't wait. A．take B．spend C．cost D．payBAA4．She spends an hour reading English every day. (改为同义句)It ______her an hour to _______English every day. 5．The new fridge cost me 6，000 yuan. (改为同义句)I _________6，000 yuan _____the new fridge. takesreadpaid/spentfor/on【精析】the number of意为“……的数量”， 后面接名词复数， 谓语动词用单数形式；a number of意为“大量；许多”， 相当于a lot of, 后面接名词复数， 谓语动词用复数形式。易错点二：the numberof与a number of的辨析【精练】( )6.There __________ a number of members in the Green Life Club. The number of them 　　　　 30 now. A．are；are 　B．are；is C．is；is D．is；are( )7.A number of tourists _________ Dali many times because it's such a beautiful city. A．have gone to B．has been toC．have been to D．has gone toBC【精析】take part in意为“参加”， 常指参加某项群体活动并在活动中发挥作用；join表示“参加，加入”， 通常指参加或加入某个组织或社团， 并成为某中一员；join in表示“参加”， 后可接比赛、活动等名词。join sb. in (doing) sth.意为“和某人一起做某事”， 其中in (doing) sth.可省略。易错点三：take part in，join与join in的辨析【精练】( )8.If John ___________the talent show, he would win it for sure. A．joined B．joins inC．takes part in D．took part in( )9.—I suppose we'll go to plant trees next week. —Great！Planting trees is a lot of fun. I'd like to ___________you. A．visit B．follow C．join D．meet( )10.My brother Jack ___________ the army for 5 years. A．has joined B．has joined inC．has been in D．has taken part inDCC【精析】turn off意为“关掉， 切断(自来水、电器开关等)”；turn on意为“打开”；turn down意为“调低(音量), 关小”；turn up意为“调高(音量), 开大”。四个词组都为“动词＋副词”型词组， 当宾语是名词时， 名词既可放在副词的前面， 也可放在副词的后面；当宾语是代词时， 代词只能放在副词的前面。turn off，turn on， turn down与turn up,的辨析【精练】( )11.—Could you ___________ the computer for me, dear？I want to check my e­mails. —Certainly, I'll do it right away. A．turn on B．turn downC．turn off D．turn up( )12.—I'd like to buy a new oven. —The ones over there sell well. You can __________ one by one to have a try. A．turn on it B．turn it onC．turn on them D．turn them onAD( )13.—The classroom is so bright now. You should ________the lights. —OK, I will. A．turn on B．turn upC．turn down D．turn off( )14.How noisy it is！Could you please __________ the music a little?A．turn on B．turn downC．turn off D．turn upDB