2020-2021学年外研版（2019）高中英语选择性必修四学案：UNIT 5 INTO THE UNKNOWN 突破语法大冲关 WORD版含答案.doc

1、名词性从句一、连接词that，whether，if引导的名词性从句观察例句1It is possible that caffeine may cause birth defects(缺陷)in humans，too.2She asked me whether/if I had returned the books to the library.3Whether it is true remains a question.4The question is whether it is worth doing.5I think(that)you should turn to the teacher

2、for help.6My reason is that the cost will be too high.归纳用法1that引导主语从句时，常用it作形式主语(如例1)，that不作从句的任何成分，但通常不可省略。2引导宾语从句的that不作从句的任何成分，常可省略(如例5)。3引导表语从句的that不作从句的任何成分，通常不可省略(如例6)。4whether与if都可以引导宾语从句(如例2)。5whether还可以引导主语从句(如例3)和表语从句(如例4)。名师点津1动词find，feel，think，consider，make，believe等后面有宾语补足语时，需用it作形式宾语而将t

3、hat引导的宾语从句后置，that通常不可省略。I think it necessary that we drink plenty of boiled water every day.2that引导两个以上的宾语从句时，通常只省略第一个从句中的that。3whether与if引导宾语从句时，大多数情况下可以互换。但or not前面用whether；用于介词后的宾语从句也用whether引导。We dont know whether or not she was ready.Im interested in whether youve finished the work.即学即练1单句语法填空I

4、t is wonderful that all of you have passed the difficult exam!I wonder if/whether they are so eager to accept advice themselves.The reason for his absence was that he was ill.The question is whether we should accept their invitation.Tell me whether or not you will go there.二、连接代词和连接副词引导的名词性从句观察例句1I

5、will do what I can to help him.2It has not been decided who will be sent there.3It is unknown when we will have our sports meet.4Go and get your coat.Its where you left it.5Thats why I want you to work there.6I dont know whose book this is.归纳用法1引导名词性从句的连接代词有who，whom，whose，what等。它们不但起连接作用，还在从句中作主语(如例

6、2)、表语、宾语(如例1)、定语(如例6)等。缺少连接代词，从句不完整。2引导名词性从句的连接副词有when，where，why，how。它们不但起连接作用，还在从句中作状语，表示时间(如例3)、地点(如例4)、原因(如例5)和方式等。缺少连接副词，从句也不完整。名师点津引导名词性从句的还有“疑问词ever”，如whoever 、whomever、wherever、whichever等，它们在从句中充当一定的句子成分。Whoever breaks the law should be punished.Wherever children go makes their parents worry.

7、即学即练2单句语法填空He didnt tell me when we would meet again.What worries us most is who let out the secret.I have no idea how I can express myself clearly in English.The problem is where we should stay.The book can be of help to whoever wants the job.单句语法填空1And it evaluates how well you combine your listen

8、ing，reading，speaking and writing skills to perform academic tasks.2Now，he is still waiting to find out whether/if he has broken the record.3He promised to give a great reward to whoever found the watch.4“Thats exactly what I need，” Mr.Vincent said to himself.5Think about what you want in the coming

9、year，then ask yourself why you want that.6Another possible reason is that on average，the British people dont take themselves too seriously.7What he did know was that he was very thankful for the opportunity given to him.8The two presidents talked by telephone on Friday，but the details of what they s

10、aid were not available.9Reading exposes you to new words，and you will see how those words are used.10The third reason is that some students have to get up early on weekdays to get to school far away from home.短文语法填空After being upset at opportunities in the UK，I left the UK for another country and di

11、scovered that understanding an 1.entirely(entire)new culture taught me a lot about how to get ahead.My life overseas began after reading an email about a government programme 2.with the aim of getting young people over to that country.I 3.had considered(consider)no international work experience befo

12、re，but，realizing that this was an opportunity not to be missed，I boarded a plane to the country.The main reason for people to go on such a voyage is to develop 4.a better understanding of a different culture.The key to 5.getting(get)ahead in this country is to get connected with other people，which d

13、etermines how business 6.is done(do)and how you succeed.Living abroad isnt as easy as I thought.Each day will present you with a new challenge 7.to be overcome(overcome)But it will wholly disappear with days when your taxi driver finally understands 8.where you need to go without you acting it out，days when you discover 9.tasty(taste)dishes cost only a small part of a Happy Meal，and days when the people youll remember forever or just for two weeks leave a lasting 10.impression(impress)on your life.