选择性必修 第一册Unit 5 Working the Land背景图ppt课件

这是一份选择性必修 第一册Unit 5 Working the Land背景图ppt课件，共45页。PPT课件主要包含了课前自主预习，Ⅰ猜词意，课堂新知讲练，用法详解，突 破 语 法，随堂知能小练等内容，欢迎下载使用。
A．味道；特色；特点B．扩大；扩建部分；电话分机C．营养(物)的D．适应；适合
1．Dnald’s been given an extensin t finish his paper.(　　)2．The children find it hard t adapt t the new schl.(　　)3．It des smetimes help t knw the nutritinal cntent f fds.(　　)4．The tmates give extra flavur t the sauce.(　　)【答案】1－4　BDCA
Ⅱ.完成句子1．After graduatin frm cllege，they _____________ t g and settle in the cuntryside.大学毕业后，他们决心到农村安家落户。2．Yu’ll find it quite helpful ___________ what yu are interested in.你会发现做你感兴趣的事情很有帮助。【答案】1．made up their minds　2．t d
3．It is still unknwn ________ the plan will be carried ut.这个计划是否会实施还不知道。4．There are many kinds f materials that we can __________ t build huses.有许多种我们可以用来建房子的材料。5．His wrk experience equipped him t _________________ all kinds f peple.他的工作经验使他能与各种各样的人打交道。【答案】3．whether　4．make use f　5．deal with
Ⅲ.预备语法(主语从句)选用括号内合适的单词完成下列句子。1．________(That/Whether) he had finished harvesting the wheat in such a shrt time surprised all the villagers.2．________(Why/Whether) the new farming methd is t be emplyed still needs t be discussed.【答案】1．That　2．Whether
3．It is knwn t all ________(which/that) this cuntry is a leading agricultural natin.4．________(When/That) the cnference will be held has nt been decided yet.5．It was nt clear t them ___________(why/whether) the farmer behaved like that.【答案】3．that　4．When　5．why
6．________(What/Why) the farmer wanted was a simple explanatin fr the lss f his farm.7．________(That/Where) we shuld stre these vegetables is a prblem.8．________(Hw/Whether) these crps died puzzled all the farmers.【答案】6．What　7．Where　8．Hw
◇词汇拓讲1．deal with处理；对付；安排；对待；与……打交道；涉及(P52)T deal with this crisis，he chse t study agriculture.【翻译】为了应对这一危机，他选择了农业。
(1)deal with中的deal为不及物动词，常与疑问词hw连用，表示“怎么处理/对待”；(2)同义短语为d with，其中的d为及物动词，表示“怎么处理/对待”时，与疑问词what连用。
Deal with a man as he deals with yu.以其人之道，还治其人之身。Firstly，let us deal with the mst imprtant issue.首先让我们来处理最紧要的问题。
[针对练习]单句语法填空(1)His wrk experience equipped him t deal ________ all kinds f peple.【答案】(1)with
一句多译(2)我不知道怎么处理那辆旧车。I have n idea ________________ the ld car.＝I have n idea ________________ the ld car.【答案】(2)what t d with；hw t deal with
2．chemical adj.与化学有关的；化学的n．化学制品；化学品(P53)What wrries many peple is that these chemicals may even cause cancer.【翻译】让许多人担忧的是这些化学物质可能会导致癌症。
a chemical plant化工厂dangerus chemicals危险化学品chemic adj.化学的；炼金术的
Many wrkers are regularly expsed t dangerus chemicals.许多工人经常接触危险化学品。
[针对练习]单句语法填空(1)Certain ________________(chemical) are easily absrbed int the bld-stream，while thers are nt.(2)________________(chemistry) prducts were used liberally ver agricultural land.【答案】(1)chemicals　(2)Chemical
完成句子(3)_____________________ in which ne species is cnverted t anther.化学反应是一种物质转变成另一种物质的过程。【答案】(3)A chemical reactin is a prcess
□观察领悟【观察课文原句】1．Hwever，what cncerned him mst was that farmers ften had pr harvests and smetimes even had a serius shrtage f fd t eat.2．Hw this culd be dne was a challenging questin at the time.
3．Hwever，whether it was pssible t develp a hybrid f self-pllinating plants such as rice was a matter f great debate.4．Tday，it is estimated that abut 60 percent f dmestic rice cnsumptin in China is cmprised f crps generated frm Yuan’s hybrid ．What impresses peple mst abut Yuan Lngping is his nging ability t fulfil his dreams.
【我的领悟】1．以上黑体部分在句中作________。2．句1和句5中的what在从句中作________。3．句3中的whether意为“________”。4．句4中的it是形式主语，真正的主语是后面的______引导的从句。5．句2中的hw在从句中作________。Keys: 1．主语　2．主语　3．是否　4．that　5．状语
□主语从句本单元语法主要介绍的是主语从句，主语从句是名词性从句的一种，在复合句中作主语，相当于名词。主语从句的位置可以在句首，也可以用it作形式主语，主语从句放在后面。
一、主语从句的基本用法(一)主语从句的引导词
Whever breaks this law deserves a fine.触犯本法者应予以罚款。Whichever (f yu) cmes in first will receive a prize.(你们中)谁先进来谁得奖。【名师点睛】主语从句中连接词的选择技巧(1)根据连接词在从句中所作的语法成分。(2)根据连接词在从句中的意义。
(二)it作形式主语为保持句子平衡，常把主语从句后置，而用形式主语it代替。it作形式主语时常用于以下句型：
It’s pssible that he has been t Beijing.他有可能去过北京。It’s a pity that yu didn’t attend the meeting.你没参加这次会议太可惜了。It seems that it is ging t rain.看起来好像要下雨。It is imprtant that he (shuld) knw abut this.重要的是他应该知道此事。
It is suggested that the meeting be put ff.有人建议会议延期召开。【名师点睛】(1)在“It＋be＋过去分词＋主语从句”结构中，过去分词若为suggested/rdered/required/advised等，主语从句中的谓语用“(shuld) d”。(2)在“It＋be＋形容词＋主语从句”结构中，若形容词为imprtant/necessary/strange等，主语从句中的谓语用“(shuld) d”。
二、主语从句中应注意的问题1．从句要用陈述语序Hw he succeeded is still a puzzle.他是如何成功的仍然是个谜。2．主谓一致(1)单个主语从句作主语时，主句的谓语一般用单数形式。Where he will get a jb after graduatin has puzzled him much.毕业后去哪里找一份工作使他很困惑。
(2)what引导主语从句时，有时主句谓语动词的数应与主句中作表语的名词的数保持一致。What the schl needs mst are bks.这所学校最需要的是书。(3)如果由and连接两个或两个以上的主语从句作主语时，谓语动词用复数；由两个或多个连接词引导一个主语从句时，谓语动词用单数。
When they will start and where they will g have nt been decided yet.他们将在什么时候动身以及要去哪里还没定下来。When and where they will hld the meeting is nt clear.他们在何时何地召开会议还不清楚。
□针对练习Ⅰ.单句语法填空1．________ we understand things has a lt t d with what we feel.2．Yur supprt is imprtant t ur wrk. ________ yu can d helps.3．________ the delayed flight will take ff depends much n the weather.【答案】1．Hw　2．Whatever　3．When
4．I think ________ impresses me abut his painting is the clurs he uses.5．________ yu said at the meeting describes a bright future fr the cmpany.6．It is ften the case ________ anything is pssible fr thse wh hang n t hpe.7．________ makes the bk s extrardinary is the creative imaginatin f the writer.【答案】4．what　5．What　6．that　7．What
8．________ Li Bai，a great Chinese pet，was brn is knwn t the public，but sme wn’t accept it.9．Exactly ________ the ptat was intrduced int Eurpe is uncertain，but it was prbably arund 1565．10．Sme peple believe ________ has happened befre r is happening nw will repeat itself in the future.【答案】8．Where　9．when　10．what
Ⅱ.完成句子1．________________________ are sme magazines.现在她正在买的东西是一些杂志。2．It is clear ________________________．很明显，刚刚有人来拜访过他。【答案】1．What she is buying nw2．that smebdy came t visit him just nw
3．__________________________ puzzles many peple.这个地区的争执(dispute)何时结束让很多人困惑。4．______________________ is that she had a headache.她没有出席婚礼宴会的原因是她头痛。【答案】3．When the dispute in this area will end4．Why she didn’t attend the wedding party
5．It is rdered that the cnstructin f the sprts grund ______________________________________.有人命令操场建设下周完成。【答案】5．(shuld) be cmpleted next week
Ⅰ.单词拼写1．When yu start t get tired f the busy ________(城市的) life，it wuld be better t spend a week at the beach.2．A passer-by described what he saw mments after the car ________(炸弹) had explded.3．The main crp is ________(小麦) and this is grwn even n the very steep slpes.【答案】1．urban　2．bmb　3．wheat
4．It has rich milk ________(味道) with a little bitter taste，and many peple lve it.5．These ________(化学物质) cme frm the injured parts f the plant and seem t be an alarm.6．The pupils disliked the ________(延伸) f the term.【答案】4．flavur　5．chemicals　6．extensin
Ⅱ.短语填空turn int，retire frm，deal with，cmplain abut，adapt t1．Let’s break dwn the prject int smaller parts in rder t __________________ them ne by ne.2．The main bdy f the church ____________________ a massive televisin studi s far.【答案】1．deal with　2．has been turned int
3．Mr Ma __________________ the natinal ftball team by the end f this year.4．We can learn a lt abut hw humans _________________ dramatic climate change frm these remains.5．Parents __________ that children spend s much time n cmputer games.【答案】3．will have retired frm　4．adapt t5．cmplain abut