人教版 (2019)选择性必修 第一册Unit 5 Working the Land评优课ppt课件

这是一份人教版 (2019)选择性必修 第一册Unit 5 Working the Land评优课ppt课件，共21页。PPT课件主要包含了Whether，Whose，What，whichwhat，That，that，has not等内容，欢迎下载使用。

Discver useful structures: Subject clauses
在复合句中充当主语成分的从句叫做主语从句。
What Yuan Lngping really cared abut was nt mney r celebrity.
That Yuan Lngping had realised his dream f seawater rice surprised the whle wrld
It's surprised the whle wrld that Yuan Lngping had realised his dream f develping seawarer rice.
主语从句，即在复合句中充当主语成分的句子.That he finished writing the cmpsitin in such a shrt time surprised us all.他在很短的时间内写完作文让我们都很惊讶此复合句主要描述的是某事让我们惊讶，某事就是该复合句的主语，因此“That he finished writing the cmpsitin in such a shrt time”便是该复合句的主语从句。引导主语从句的连词主要有：从属连词：that whether连接代词：wh whever whm whse what whatever which whichever连接副词：when where hw why whenever wherever hwever引导词+主语+动词=主语从句
试翻译:我们明天是否会去郊游仍旧未知。
tmrrw remains unknwn.
will g fr an uting
主语从句的时态不受主句时态的影响和限制,主语从句常作单数。（1）Wh will be ur mnitr hasn't been decided yet. 谁当我们的班长尚未决定。（2）Whm we must study fr is a questin f great imprtance. “我们为谁而学习”是个很重要的问题。（3）What caused the accident remains unknwn. 事故的起因是未知的。（4）Whatever yu did is right. 你做的任何事都是正确的。（5）Whm the watch belngs t is unknwn. 手表的归属是未知的。（6）What we need is time. 我们需要的是时间。（7）What we need are gd dctrs. 我们需要的是好的医生。
归纳总结：★主语从句必须有引导词；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 cannt be tld._____________ India needs is a law t make land wnership fairer.It is nt yet decided _____________ cash crp will be prduced next year.________________ he said was right.
What/Whatever
比较that / what1. _________ he wants is a bk. 主语从句 2. _________ he wants t g there is bvius. 主语从句 3. _________ happened is nt 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 Histry Museum. 定语从句that 和what 的选用：that 和 what 都可引导主语从句。但是，what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。
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. It's likely/pssible/imprtant/necessary/clear that… 很可能/重要的是… /必要的是……/很清楚…2. It's knwn/reprted/ thught/said that… 据说/据报道…3. It seems/appears/happens that… 显然、明显、碰巧.…4. It's been annunced/declared that… 已经通知/宣布…5. It's n wnder that…难怪/无疑…6. It's a pity/a fact /a cmmn knwledge (众所周知） / a cmmn saying（俗话说）that…
翻译练习1. 他多长时间去看望奶奶取决于他能抽出多少时间。2. 那一年有多少人死于饥饿永远也不为人知了。3. 所有人都知道火药最初是由中国人发明的。4. 造成事故的原因仍旧是个秘密。
Hw ften he’ll g t see his grandmther depends n the time he can spare.
Hw many peple died frm starvatin that year will never be knwn.
It is knwn t all that the gun pwder was first invented by the Chinese.
It is still a mystery what caused the accident.
下列各句均有一处错误，请改正并分析原因。1. Light travels faster than sund is cmmn knwledge.改：在Light前加That。that虽无词义但引导主语从句位于句首时不能省略。2. If she's cming r nt desn't matter much.改：将If变为Whether。if, whether都可表示“是否”, 但if不能引导位于主句之前的主语从句，它可以引导位于主句之后带有形式主语it的主语从句。3. That the prfessr said is f great imprtance.改：将That改为What。that引导主语从句时无词义，只起一个连接的作用。What the prfessr said表示“教授所说的”，said后面还需要一个宾语，就只能用what。
下列各句均有一处错误，请改正并分析原因。4. Where will the trees be planted has nt been decided.改：将will置于trees之后。主语从句要用陈述句语序。5. N matter wh breaks the rule will be punished.改：将N matter wh变为Whever。引导让步状语从句时二者可互换，但引导名词性从句时只能用whever。6. When and where the meeting will be held still remain a questin.改：将remain变为remains。主语从句表示单一概念时，谓语要用单数形式。
Translate the cmpleted sentences int Chinese.
1. 这些小麦农场主什么时候加入这个试验仍然是一个悬而未决的问题。
2. 我们如何才能找到一个适合的解决办法来生产足够的粮食同时保持环境安全是我们 要研究的一个重要主题。
3. 令人多人担忧的是这些化学药品甚至能导致癌症。
4. 这些蔬菜甚至能通过这种新技术无土种植，令我们所有人都很吃惊。
5. 生活方式慢节奏而且健康是很多人更愿意住在乡下而不是城里的原因。
1. the fact that the vegetables lk beautiful n the utside
2. the thing that she is unhappy abut
3. the way that they are ging t spend their retirement
4. the questin whether they can live a healthy life
What I have frgtten
Cmbine each pair f sentences using the wrd in brackets.
1. Can we cntrl pests withut causing any ill effects? This still remains a questin. (Whether)
2. Agriculture is the fundatin f ur cuntry. This is well knwn. (It)
3. Sme less-develped cuntries are suffering frd shrtage. It is a serius prblem in the wrld.(That)
Whether we can cntrl pests withut causing any ill effects still remains a questin.
It's well knwn that agriculture is the fundatin f ur cuntry.
That sme less-develped cuntries are suffering frd shrtage is a serius prblem in the wrld.
4. Sme herdsmen in Inner Mnglia fix elecrnic snesrs t their cattle t mnitr their mvements. It is true that they are ding this.(It)
It is true that sme herdsmen in Inner Mnglia are fixing elecrnic snesrs t their cattle t mnitr their mvements.
Make sentences using subject clauses with the help f the clues.
1. he said/reasnable
2. she will accept the invitatin/nt clear yet
3. the animals are mving t/nt exactly knwn
4. yu have recvered frm yur illness/a grat relief t us.
5. he has becme distant recently/my cncern
What he said is reasnable.
Where the animals are mving has nt been exactly knwn.
That yu have recvered frm yur illness is a great relief t us.
Whether she will accept the invitatin is nt clear yet.
It's my cncern why he has becme distant recently.
Rewrite the sentences using subject clauses
1. We wanted t knw where he had lst the laptp.
2. The way in which he did the experiemnt was puzzling t ther peple.
3. D they use t many chemical pesticides? I wrry abut this mst. Whether________
Where he had lst the laptp was what we wanted t knw..
Hw he did the experiemnt was puzzling t ther peple.
Whether they use t many chemical pesticides wrries me mst.