1、1Unit 2 How often do you exercise第四课时 Section B(2a2e)1数词percent ofn. 百分之的作主语时，后面的谓语动词的单复数与 percent of 后面所接名词的单复数一致。如：Thirty percent of the grain is used to feed animals. 百分之三十的粮食用来饲养牲口。 Ninety percent of the smokers are men. 百分之九十的吸烟者是男性。2although 的用法although 相当于 though，意为“虽然，尽管” ，引导让步状语从句。特别提示：汉语中可
2、用“虽然但是” ，但在英语中，although/though 不能与 but 同时使用，但可以转换。【拓展】类似的还有 because 和 so，它们也不能同时使用。3辨析 through，across 与 over(1)through 意为“穿过” ，指从物体的内部穿过。(2)across 意为“穿过” ，指从物体的表面通过。(3)over 意为“越过；跨过” ，指越过一个有高度的物体。4辨析 but 与 however(1)but 为转折连词，有明显的对比，转折较强，位于所引出的句子之首，其后直接接句子。(2)however 为副词，位于句首、句中或句尾，在句首或句尾时用一个逗号，在句中时
3、前后各用一个逗号，用于给出意料之外的信息或转换话题。5辨析 none 与 no one(1)none 既可以指人也可以指物，表示“(三个或三个以上中)没有任何人或物” ，其后常接 of 短语，作主语时，谓语动词单复数都可以。它可以回答 how many/how much 引导的特殊疑问句。(2)no one 只用来指人，意为“没有任何人” ，相当于 not even one，其后不能接 of 短语，作主语时，谓语动词用单数，可以回答 who 引导的特殊疑问句。 , 01 基础过关.根据句意及汉语提示填写单词。1Going camping is good for your mind(头脑) an
4、d body.2Although(虽然) he is only 6yearold，he can look after himself.3About 20 percent(百分之) of the students here do sports every day.4My mother sometimes spends the evening watching television(电视节目)5They walked through(穿过) the forest and arrived at the small house yesterday.用方框中所给单词的适当形式填空。die，almost，
5、together，write，dentist6Jenny and Alice are good friends.They always go to school together7The poor girl died on a snowy night.8Bobs parents are dentistsThey work in a big hospital.9Mr.Smith got back home at almost ten last night.10Lu Xun is my brothers favorite writer.句子改错。以下每句均有错误，错误涉及一个单词的增加()或一个单
6、词的删除(，其他错误为单词的修改。每处错误及其修改均仅限一词。11Basketball is most popular sport in our school.the12A small river goes across my village.There are many fish in it.through13He usually watches TV for more than three hours in a day.14The teacher told me the answer of the question.2to15How long does your brother use t
7、he Internet？Once a week.often, 02 能力提升.阅读理解。Dear Jane，England is wonderful.We set off(出发) from London two weeks ago.We drove to Liverpool，and we got there last week.Now were on our way to Birmingham.The countryside around Birmingham is so beautiful.The food there is so delicious，so Im afraid Im gett
8、ing fatter.Yours，AmyDear Jane，Now I know why many people spend their holidays in Hawaii.Its really a paradise(乐园)I came here yesterday with my sister.In the morning，we walked on the beach.In the afternoon，we swam in the water.We enjoyed ourselves very much here.Yours，Mary(A)16.How did Amy get to Liv
9、erpool?ABy car. BBy train. CBy bike. DBy plane.(C)17.What does Amy think of the food there?AExpensive. BCheap. CDelicious. DTerrible.(B)18.Mary went to Hawaii with her _.Amother Bsister Cbrother Dfather(C)19.Which of the following is TRUE?AAmy got to Birmingham last week.BMary thinks that she is getting fatter.CMary spent her holiday in Hawaii.DMary didnt have a good time in Hawaii.
