高中人教版 (2019)Unit 5 Working the Land图片课件ppt

这是一份高中人教版 (2019)Unit 5 Working the Land图片课件ppt，共22页。PPT课件主要包含了Activity 1，Activity 2等内容，欢迎下载使用。

Learning Abut Language
deal with——tacklecmmits ——devtesbelieved ——cnvincedslved ——vercameincrease——expandfree-time——leisure
Build up yur vcabulary
1、The characteristics f a persn are the special qualties that make him r her different frm thers.2、 Scientists frm different cuntries have been pursuing varius pssibilities t vercme fd slutin.3 Many f us assumed that earthquakes wuld never happen in ur area.
Activity 2
4、With mre and mre farm machines being used in the fields, the cnsumed f fuel has been increasing. 5、Newspapers shuld pay less attentin t media celebrities and mre attentin t ur natinal heres.
6、Our general manager tried his best t help vercme the difficulties we were facing during the financial crisis？7、 My mther is very cnvertinal and finds it hard t accept the mdern lifestyle that I enjy.8、The gvernment has decided t bst the prgramme t generate mre new jbs.
What is the main idea f the passage? What kind f writing is it?What is the purpse f the change?Describe the change using the key wrds frm the passage (as listed in the fllwing chart).What d yu think f this innvatin?
Activity 3
Discver useful structure
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 surprised the whle wrld that Yuan Lngping had realised his dream f develping seawater rice.
•第二句是 that引导的主语从句，注意that放在句首，所以不能省去，这使得句子成分明确。• 第三句是由it作形式主语，that引导的主语从句放在句末，这是该类型的主语从句更为常见的结构形式。
•第一句是what 引导的主语从句，注意what在句中并非疑问词，而是连接代词。在该句中使用名词性从句，起到一定的强调作用。
主语从句 主语从句就是在复合句中作主语的名 词性从句,通常放在主句谓语动词之前 置于句首,也可用形式主语 it 代替,而将主语从句放至句末。
主语从句主要有以下几类：1、由连词 that 引导的主语从句that 无实际意义,只起连接作用,在句中不作成分且置于句首时不可以省略(it 作形式主语,that 引导的从句作真正主语时,that 可省略)。
2、由连词 whether, if 引导的主语从句whether 和if有词义(意为“是否”),在句中不作成分但不可以省略。注意:if引导的主语从句不位于句首,可用于 it 作形式主语的句型中。
3、由连接代词引导的主语从句由连接代词 wh， whse, whm, which, what, whever, whmever,whichever, whatever 等引导的主语从句,其连接代词在从句中起名词性作用,有词义且充当一定成分。
[特别注意] (1)连接词 that 与 what 的区别that 只起连接作用,无意义,在从句中不充当任何成分。what 既起连接作用，又在从句中作主语、宾语、表语等。
(2)what/whatever, wh/whever 等引导的主语从句的意义差别whever, whatever 等引导的主语从句不含有疑问意义,相当于名词或代词后加一个定语从句,即 whever 可以换成 anyne wh, whatever 可以换成 anything that。
4、由连接副词when，where，why, hw 等引导的主语从句,其连接副词有含义,且常在从句中作状语。 
5、it作形式主语，从句作真正主语为了使句子平衡,通常使用形式主语,而将真正的主语从句放在后面。it作形式主语，从句作真正主语的具体用法如下：（1）It+ be +名词短语+从句。这样的名词短语有a fact，a surprise，an hnur, a pity, cmmn knwledge/sense(常识)等。
（2）It + be +形容词+从句。这样的形容词有funny，natural，true，strange, imprtant, bvius, certain，wnderful，pssible，likely，prbable 等。
（3）It +动词（短语）+从句。这样的动词有 happen， lk，matter，strike(+ sb), ccur（+ t sb)等。 (4) It + be +过去分词+从句。这样的分词有 said(据说），reprted（据报道），believed(人们相信)，knwn（众所周知)，decided（已决定），prved(已证实),thught, expected, annunced， arranged 等。
A What wrries many peple remains an unanswered questin.B That the lifestyle is slwer and healthier is an imprtant tpic fr us t research.C Hw we can find a suitable slutin t prduce sufficient fd while keeping the envirnment safe is that these chemicals may even cause cancer.
D When these wheat farmers will jin this pilt experiment these vegetables can even be planted withut any sil thrugh this new technlgy.E It amazed all f us that is the reasn why sme peple prefer t live in the cuntry rather than in the city.