中考化学总复习 第二部分 专题复习 高分保障 专题1 气体的制取与净化课件 新人教版 (19)

1、第一部分第一部分 系统复习系统复习 成绩基石成绩基石八年级上册八年级上册第第 7 7 讲讲Unit 1Unit 1Unit 2Unit 2要点梳理要点梳理过关过关 重点词汇过关重点词汇过关根据句意及所给提示完成句子1Hainan Island is a wonderful(wonder)place to take a vacation.2Betty goes shopping once or twice(two) a week.3If we do same job again and again，we may get bored(bore) sometimes.4The baby is so

2、young that he can hardly(hard) dress himself.5There are five differences(different) between the two pictures.62017苏州中考My grandma always tells me nothing(没有什么) is more important than health.72017铜仁中考改编Although(尽管) he is only six years old，he can swim well.82017贵港中考Its important for young people to ma

3、ke a right decision(决定) for their future.9Smoking does harm to health，wed better give it up.102017成都中考Shell take her son to the dentist to have his teeth checked.高频考点高频考点精讲精讲考点考点1 1 decide decide 的用法的用法It was sunny and hot，so we decided to go to the beach near our hotel.天气很热，阳光明媚，所以我们决定去宾馆附近的海滩。 Uni

4、t 1 P5【透析】decide作动词，意为“决定”，其用法如下：decide (not) decide (not) to do sth.to do sth.决定(不)做某事The man decided to sell his house.这个人决定卖掉他的房子。decide on/up decide on/up (doing) sth.(doing) sth.决定(做)某事We decided on spending the vacation by the sea.我们决定在海边度假。decidedecide宾语宾语从句从句决定He decided that he would go to

5、France for his holiday.他决定去法国度假。decidedecide特殊特殊疑问词疑问词to doto do决定做I cant decide what to wear.我不能决定穿什么。 考点考点2 2 try try 的用法的用法My sister and I tried paragliding.姐姐和我尝试了滑翔伞运动。 Unit 1 P5【透析】 try此处为及物动词，其后常跟名词、动名词或不定式，意为“尝试；试图；设法；努力”。其用法如下：【拓展】 try构成的其他搭配还有：try on试穿；have a try试一试；try ones best尽某人最大的努力。如

6、：I want to try on this coat.我想试穿下这件外套。Im going to have a try.我将试一试。Everyone should try his best to protect the environment.每个人都应该尽自己最大的努力来保护环境。考点考点3 3 辨析辨析because of because of 与与becausebecauseAnd because of the bad weather，we couldnt see anything below.并且因为糟糕的天气，我们不能看到底下的任何东西。 Unit 1 P5because ofbe

7、cause of介词短语，其后跟名词、代词或动名词作宾语，可置于句首或句末They didnt go hiking because the weather was bad last weekend. They didnt go hiking because of the bad weather last weekend.因为天气不好，上周他们没有去远足。becausebecause连词，后接表原因的从句，可以回答why引导的特殊疑问句，不可与so连用考点考点4 4 enough enough 的用法的用法My father didnt bring enough money，so we only

8、 had one bowl of rice and some fish.我父亲没带够钱，所以我们只吃了一碗米饭和一些鱼肉。 Unit 1 P5【透析】 enough作形容词时，置于名词前、后均可；作副词时，置于所修饰的形容词、副词之后。如：We have enough time to do our homework.我们有足够的时间做家庭作业。The box is light enough for you to carry it.那个箱子很轻，你可以搬动它。【拓展】 not.enough to do sth.常与too.to或so.that进行句型转换。如：Tom isnt old enoug

9、h to go to school.Tom is too young to go to school.Tom is so young that he cant go to school.汤姆还没有到上学的年纪。词语词语词义词义用法用法答语特征答语特征how longhow long多久询问时间多久for一段时间或since时间点/从句多长询问物体多长数词表示量的词名词how oftenhow often多久一次询问动作的频率often，twice a week等how soonhow soon多快、过多久询问时间多快in一段时间how farhow far多远询问距离多远ten minutes

10、 walkhow manyhow many多少询问可数名词数量数词可数名词复数how muchhow much多少询问不可数名词数量数词表示量的词不可数名词多少钱询问价格数词钱考点考点5 5 辨析辨析how longhow long，how oftenhow often，how soonhow soon，how farhow far，how how manymany与与how muchhow muchHow often do you exercise？你多久锻炼一次？ Unit 2 P9考点考点6 6 hardlyhardly的用法的用法He hardly ever watches TV.他几

11、乎不看电视。 Unit 2 P11【透析】 (1)hardly意为“几乎不，几乎没有”，是表示否定意义的频率副词，在句中位于实义动词之前，助动词或系动词之后。如：I hardly ever exercise.我几乎不锻炼。There is hardly any food in the fridge.冰箱里几乎没有食物了。(2)频率副词按其频率高低依次排列顺序为：(3)在反意疑问句中，若陈述部分含有hardly等表示否定意义的词时，其疑问部分用肯定形式。(4)hardly位于句首时，句子要倒装。【拓展】 hardly并非hard的副词形式关联语法链接关联语法链接 语法1：复合不定代词 见P123

12、语法2：频度副词考点即时考点即时运用运用单项填空1考点2We should try _ for ourselves.Astudy Bstudied Cto study2考点5_ will you finish your homework?In half an hour.AHow long BHow far CHow soon3考点1What bad weather it was！We decided _Ato go out Bnot to go outCto not go out4语法1Good morning，class.Is _ here?No，sir.Peter is absent.Aa

13、nybody Beverybody Cnobody5考点2The next time you feel stressed or tired，try _some exercise you enjoy.Ado Bto do CdoingCCBBC6考点52017昆明中考改编_？Twice a week.AHow old are youBHow do you get to schoolCHow often do you exercise7语法1My friend John knows _ about football.He doesnt like it at all.Asomething Banyt

14、hing Cnothing8考点1I cant decide _You mean the purple sweater or the blue one?Ahow to go there Bwho to go withCwhich to choose9考点6My daughter studies _She _ goes to sleep before 11 oclock at night.Ahard；hard Bhard；hardlyChardly；hardlyCCCB10语法1Max wont accept help from _He does things on his own. Asome

15、body Banybody Cnobody11考点4What do you think of the lecture of Li Yangs Crazy English?I think its _，but someone think its much too _.Acreative enough；boredBenough creative；boringCcreative enough；boring12考点5Excuse me._ is it from here to the zoo?Let me see.Its about two kilometers.AHow long BHow soon

16、CHow far13考点2Whatever difficulties we meet in life，we should try our _ to get over them.Abetter Bwell CbestBCCC14语法12017安顺中考改编Why would you like to walk _ the forest?Because I want to try _.Athrough；exciting somethingBacross，something excitingCthrough；something exciting15考点5_does it take you to drive to work every day?About one hour and a half.AHow long BHow many CHow often16语法2How often do you go skating?_I ca