Unit 5 Working the land Discover Useful Structures 主语从句-ppt课件--（2022）新人教版(2019新版)高中英语选择性必修第一册.pptx

1、Discover Useful StructuresIn this class,you will1.identify and summarize the uses of noun clauses as subjects;2.use subject clauses to talk about what qualities make a person so successful.Circle the simple subject in each sentence.Time flies.Ice cream is the favorite dessert of children.The childre

2、n in the first row received badges.Why would a baby elephant be eating leaves?Who gave you that present?To leave was his wish.From the ceiling hung the chandelier(吊灯).Tall buildings and windy weather dont mix well.Eat your dinner with a spoon.Driving too fast is dangerous.My favorite older brother,w

3、ho just started tenth grade,rides his bike to school.YouWhat concerned him most was that farmersoften had poor harvests and sometimes even had a serious shortage of food to eat.Discover useful structures:Subject clauseswhat 在主语从句中充当 _,译为 _主语事情Subordinator?How this could be done was a challenging que

4、stion at the time.Whether it was possible to develop a hybrid of self-pollinating plants such as rice was a matter of great debate.how 在主语从句中充当 _,译为 _whether 在主语从句中充当 _,译为 _方式状语怎样不做成分是否It is estimated that about 60 percent of domestic rice consumption in China is comprised of crops generated from Yu

5、ans hybrid strains,and his strains have allowed Chinas farmers to produce around 200 million tons of rice per year.that 在主语从句中充当 _,译为 _,但不可省略。不做成分无意思What impresses people most about Yuan Longping is his ongoing ability to fulfil his dreams.主语从句，即在复合句中充当主语成分的句子.what 在主语从句中充当 _,译为 _主语事情，东西归纳总结：主语从句必须有

6、引导词；主语从句用陈述句语气。连词位于句首不能省略主语从句大多数情况下视为第三人称单数，但也有例外.主语从句引导词的选择主要是根据从句的结构和意义来选择。如果从句的意义和结构完整，则用that。如果从句的意义和结构不完整，则根据从句的意义和结构选择相应的引导词。练一练：用适当的连词填空_ bag it is cannot be told._ India needs is a law to make land ownership fairer.It is not yet decided _ cash crop will be produced next year._ he said was ri

7、ght.WhoseWhatWhat/Whateverwhich/what比较that/what1._ he wants is a book.主语从句 2._ he wants to go there is obvious.主语从句 3._ happened is not clear.主语从句4.This is the best TV_ is made in China.定语从句5.The first museum _ he visited in China was the History Museum.定语从句that 和what 的选用：that 和 what 都可引导主语从句。但是，wha

8、t除起连接作用外，还在主语从句中充当成分，可做从句的主语、宾语、或表语，相当于the thing(s)that；而that在主语从句中不充当任何成分，只起连接作用。WhatThatWhatthatthat主语从句考点归纳u 主语从句连接词的使用u 主谓一致u 形式主语结构u 主语从句的语序 陈述句根据从句结构和意思一般为单数为了使句子保持平衡，常用it来代替主语从句，而把主语从句放到后面，尤其是连词that引导的主语从句常用于此种句式中。常用句型如下：It+be+名词+that 从句It+be+形容词+that从句It+be+动词的过去分词+that从句It+不及物动词+that从句1.Its

9、 likely/possible/important/necessary/clear that 很可能/重要的是/必要的是/很清楚2.Its known/reported/thought/said that 据说/据报道3.It seems/appears/happens that 显然、明显、碰巧.4.Its been announced/declared that 已经通知/宣布5.Its no wonder that难怪/无疑6.Its a pity/a fact/a common knowledge(众所周知）/a common saying（俗话说）thatSubordinators

10、 of Subject ClauseSubordinatorsPartMeaningthat/what/who/whom.（S./O.）ever(whatever/whoever)（S./O.）whose/which(attrib.)why/when/where/how(ever)(adv.)whether(if)/引导主语从句的关联词从属连词(不作成分）连接代词（作成分）连接副词（作状语）what,who,whom,whose,which,wh+everthat,whether,when,where,how,why功能连接词不作成分that,whether作主、宾、表、what,who,wh

11、om,wh+ever作定语which,whose,作状语when,where,why,how Usage of the subordinator缺什么补什么12431.the fact that the vegetables look beautiful on the outside 2.the thing that she is unhappy about 3.the way that they are going to spend their retirement 4.the question whether they can live a healthy life Discover us

12、eful structures:Subject clausesWhat I have forgottenisItWhosehas notRewrite the sentences using subject clauses1.We wanted to know where he had lost the laptop.2.The way in which he did the experiemnt was puzzling to other people.3.Do they use too many chemical pesticides?I worry about this most.Whe

13、ther_Where he had lost the laptop was what we wanted to know.How he did the experiemnt was puzzling to other people.Whether they use too many chemical pesticides worries me most.Workbook4.People are happy to see that the living conditions and income of the farmers have improved a lot.That_ makes peo

14、ple happy.5.We have not decided on the date for the sports meet.When _ has not been decided on yet.Rewrite the sentences using subject clauses That the living conditions and income of the farmers have improved a lot makes people happy.When we will have the sports meet has not been decided on yet.Mak

15、e sentences using subject clauses with the help of the clues.1.he said/reasonable2.she will accept the invitation/not clear yet3.the animals are moving to/not exactly known4.you have recovered from your illness/a grat relief to us.5.he has become distant recently/my concernWhat he said is reasonable

16、.Where the animals are moving has not been exactly known.That you have recovered from your illness is a great relief to us.Whether she will accept the invitation is not clear yet.Its my concern why he has become distant recently.Combine each pair of sentences using the word in brackets.1.Can we cont

17、rol pests without causing any ill effects?This still remains a question.(Whether)2.Agriculture is the foundation of our country.This is well known.(It)3.Some less-developed countries are suffering frood shortage.It is a serious problem in the world.(That)Whether we can control pests without causing

18、any ill effects still remains a question.Its well known that agriculture is the foundation of our country.That some less-developed countries are suffering frood shortage is a serious problem in the world.Combine each pair of sentences using the word in brackets.4.Some herdsmen in Inner Mongolia fix elecronic snesors to their cattle to monitor their movements.It is true that they are doing this.(It)It is true that some herdsmen in Inner Mongolia are fixing elecronic snesors to their cattle to monitor their movements.