单元语法聚焦九.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,英 语,新课标（,WY,）,八年级下册,单元语法聚焦九,单元语法聚焦九,语法点击,whether/if,及疑问词引导的宾语从句,本模块主要学习另外两类宾语从句,whether,或,if,引导的宾语从句和疑问词引导的宾语从句。,一、,whether,或,if,引导的宾语从句,1.whether/if,引导宾语从句时，意为,“,是否,”,，表达不确定的概念，常位于动词,ask,see,say,know,find out,等后面。一般情况下，两者可互换，在口语中多用,if,。,Nobody knows whether/if it will rain tomorrow.,没有人知道明天是否会下雨。,Lucy asked whether/if they had a cotton sweater.,露西问他们是否有棉制的毛衣。,2.whether/if,引导宾语从句时，要注意三方面，即连词、语序和时态。,(1)whether/if,在句中不能省略。,I dont know if/whether he will come here today.,我不知道他今天是否会来这儿。,(2)whether/if,引导的宾语从句，其从句语序应用陈述语序。,Did you know the way to the hospital?The old woman asked me.,The old woman asked me if/whether I knew the way to the hospital.,老妇人问我是否知道去医院的路。,(3)whether/if,引导的宾语从句，其时态应和主句的时态,单元语法聚焦九,保持一致。即当主句为一般现在时态时，从句可根据实际情况选择不同时态；当主句为一般过去时态时，从句一般使用相应的过去时态。,I dont know if/whether he has come here.,我不知道他是否已经来这儿了。,Tom asked if/whether I had read the book.,汤姆问我是否读过这本书。,3.whether/if,的区别：,(1),在动词不定式之前只能用,whether,。例如：,I cant decide whether to stay.,我不能决定是否留下。,单元语法聚焦九,(2),在固定结构,“,whether,or not,”,中，只能用,whether,。,I want to know whether its good news or not.,我想知道它是否是好消息。,(3),在介词后，只能用,whether,。,His father is worried about whether he may lose his job.,他的父亲担心他是否会失去工作。,二、疑问词引导的宾语从句,1,在引导词上，要将疑问代词或疑问副词变为连接代词或连接副词，引导宾语从句。,Whose bike is this,？,Does anybody know?,Does anybody know whose bike this is?,单元语法聚焦九,2,在时态上，宾语从句的时态应与主句的时态保持一致。,When will the train arrive,？,He asked me.,He asked me when the train would arrive.,3,在语序上，要将疑问句语序改为陈述句语序。,Which one do you like best,？,She asked me.,She asked me which one I liked best.,注意：疑问句中主语之前的助动词若是,do/does/did,，变为宾语从句时，要先将其去掉，谓语动词再根据时态作相应的变化。,4,特殊疑问词在句中作主语，变为宾语从句时，语序不变,(,时态应作相应变化,),。例如：,Who can answer the question,？,The teacher asked.,单元语法聚焦九,The teacher asked who could answer the question.,5,特殊疑问句变为宾语从句后，用问号还是用句点完全取决于主句的句式：如果主句为陈述句或祈使句，句末就用句点；如果主句是疑问句，句末就用问号。,I dont know when we shall start tomorrow.,Do you know when we shall start tomorrow?,单元语法聚焦九,实战演练,.,单项填空,(,)1.,2013,乌鲁木齐,Could you tell me_,？,By searching the Internet.,A.how did Mona get the information,B.why Mona got the information,C.how Mona got the information,D.why did Mona get the information,单元语法聚焦九,(,)2.,2013,包头,Please tell,me_the,scarf?,She bought it online,I guess.,A.if Alice liked,B.when Alice bought,C.where Alice bought,D.how much did Alice pay for,(,)3.I dont know _ or not they will come to help us.,A,whether B,if,C,that D,when,单元语法聚焦九,(,)4.,2013,三亚,Betty,do you know if Tony_ the photo competition?,He will,if he_ this project on Australia.,A,enters;finishes,B,enters;will finish,C,will enter;finishes,D,will enter;will finish,(,)5.,2013,黔东南,Our physics teacher told us light_ faster than sound.,A.travels B,travelled,C,travelling,D.to travel,单元语法聚焦九,(,)6.,2014,滨州,Excuse me,can you tell me_,？,A.when does the plane leave,B.how long the plane has left,C.when the plane leaves,D.when did the plane leave,(,)7.,2013,梅州,Could you tell me_ a meeting in Guangzhou next week?,A.if there was going to be,B.if there is going to be,C.whether is there going to be,D.whether there is going to have,单元语法聚焦九,(,)8.,2013,绥化,The teacher asked the students_,A,why the earth went around the sun,B.why does the earth go around the sun,C.why the earth goes around the sun,D,why did the earth go around the sun,答案,1,5,CCACA,6,8,CBC,单元语法聚焦九,.,按要求完成下列各题,1,Would she finish her homework in two hours?She wasnt sure.(,合并为一句,),She wasnt sure _ she would finish her homework in two hours.,2,The children asked their mother.Can we eat those apples,？,(,合并为一句,),The children asked their mother_ eat those apples.,if/whether,if/whether they could,单元语法聚焦九,3,2014,兰州,Tom said,“,We will go back tomorrow morning.,”,(,改为间接引语,),Tom said,they_come,back the next morning.,4,2014,黔西南,“,Who is responsible for the food safety problem?,”,asked the reporter.(,改为间接引语,),The reporter asked_ responsible for the food safety problem.,would,who was,单元语法聚焦九,