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新教案+教与学2016年八年级外研版下册英语+模块语法聚焦九


模块语法聚焦九

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”,表示不 确定的概念,常位于ask, see, say, know, find out等词或短 语的后面。一般情况下,两者可互换,在口语中多用if。例如: 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。

语法点击

模块语法聚焦九

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。例如: I don't 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,其从句的语序应用陈述 语序。例如: 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. 那位老妇人问我是否知道去医院的路。

模块语法聚焦九

(3)whether/if引导的宾语从句,其时态应和主句的时态 保持一致。即当主句为一般现在时态时,从句可根据实际情

况选择不同的时态;当主句为一般过去时态时,从句一般使 用相应的过去时态。例如: I don't 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。

模块语法聚焦九

3. whether/if的区别: (1)在动词不定式之前只能用whether。例如: I can't decide whether to stay. 我不能决定是否留下。 (2)在固定结构“whether?or not”中,只能用whether。 例如: I want to know whether it's good news or not. 我想知道它是否是好消息。 (3)在介词后只能用whether。例如: 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。

模块语法聚焦九

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。例如: Whose bike is this?Does anybody know? →Does anybody know whose bike this is? 2.在时态上,宾语从句的时态应与主句的时态保持一致。 例如: When will the train arrive ?He asked me. →He asked me when the train would arrive. 3.在语序上,要将疑问语序改为陈述语序。例如: Which one do you like best ?She asked me. →She asked me which one I liked best.

模块语法聚焦九

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. →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。例如: I don't know when we shall start tomorrow. Do you know when we shall start tomorrow?

模块语法聚焦九

实战演练 Ⅰ.单项填空 ( )1.[2015?南京]—I saw David in the teachers' office this morning. Do you know ________ he was there? —He went there to hand in his homework. A.how B.whether C.when D.why ( )2.[2015?泰安]—Could you please tell me________you will go to Hong Kong on business? —Sure. I prefer to take a plane. A.whether B.why C.when D.how ( )3.I don't know ________ or not they will come to help us. A.whether B.if C. that D.when [答案] 1.D 2.D 3.A

模块语法聚焦九

(

)4.[2015?青岛]I wonder________.

A.how will you celebrate Thanksgiving B.that the Water Festival is really fun C.what do people eat on the Mid?Autumn Festival D.whether you will make resolutions on New Year's Day [解析] D 在宾语从句中,从句用陈述语序,排除A和C;又 由主句中“wonder”可知选D。

模块语法聚焦九

( )5.[2013?黔东南] Our physics teacher told us light________ faster than sound. A. travels B.travelled C.travelling D. to travel ( )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
[答案] 5.A 6.C

模块语法聚焦九

(

)7.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

[答案] B

模块语法聚焦九

(

)8.[2015?昆明]—The project is so difficult

for your cousin. —Yes, I am wondering________ . A.that he will finish it on time B.whether he can finish it by himself C.how could I help him out D.can I do anything necessary for him
[解析] B 句意:“这个工程对于你的表弟来说实在是太难 了。”“是的,我想知道________。”wonder是动词,后面用 宾语从句,宾语从句要用陈述语序,排除C、D,根据句意可知 选B。

模块语法聚焦九

Ⅱ.按要求完成下列各题 1.Would she finish her homework in hours? She wasn't sure.(合并为一句) She wasn't sure _______________ she if/whether finish her homework in two hours. 2.The children asked their mother. eat those apples?(合并为一句) The children asked their if/whether they could eat those mother______________________

two

would
Can we

apples.

模块语法聚焦九

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. would 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________ who was responsible for the food safety problem.

模块语法聚焦九

Ⅲ.用适当的连接词填空 1.I can't hear ________ what they are talking about over there. if/whether 2.The mother asked her son ________ he had lunch. whose bike it is? 3.—Do you know ________ —Maybe it's Lucy's. whether your father 4.Could you tell me ________ is at home or not? that she would go to 5.She told me ________ Shanghai next week.

模块语法聚焦九

Ⅳ.将下列句子变成宾语从句 1.When will the plane arrive? Please tell me. when _____ the plane arrive Please tell me ____ _____will _____ ____. 2.What are you interested in? Could you tell
me? interested Could you tell me what ____ you ____are ____ ____ ____in ? 3.Is there life on other planets? No one if/whether there is life on other planets knows. No one knows ____ ____ _____ _____ _____ _____. movie likes best ask 4.Which movie which does he likehe best? Let's him. why Mike working Let's ask him _____ _____stopped _________ ________ . 5.Why did Mike stop working? I don't know.


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