外研版 (2019)必修 第三册Unit 6 Disaster and hope图文课件ppt

这是一份外研版 (2019)必修 第三册Unit 6 Disaster and hope图文课件ppt，共36页。PPT课件主要包含了要点精研·探究学习，语法新知·对接课堂，语法探究·核心突破，课时达标·随堂自测，to respond，reliable，to be，to report，under，状语从句等内容，欢迎下载使用。
1.frecast n．& vt.预测；预报(教材原句)Technlgy isn't the nly way t frecast the weather.技术并不是预测天气的唯一方法。❶The weather frecast said there wuld be a heavy rain.天气预报说将有大雨。❷The reprt frecasts that prices will rise by 3% next mnth.报告预测下个月物价将上涨3%。
[归纳探究](1)frecast sth.t d sth. 预测某物做某事frecast that... 预测……(2)weather frecast 天气预报sales frecast 销量预测[联想拓展]　过去式：frecast或frecasted过去分词：frecast或frecasted现在分词：frecasting
[即学即练]　单句语法填空/完成句子①It ____________ (frecast) that the weather fr the day f the race will be bad.②_________________ (天气预报) says the weather is nt gd s we are taking a large parcel f warm clthes with us.
is frecast(ed)
The weather frecast
2.reliable adj.可信赖的；可靠的(教材原句)S, fr accurate and reliable predictins, it's best t check an fficial, scientific reprt.因此，为了准确可靠的预测，最好查看官方的科学报告。❶It is nt reliable t judge a man nly by his lks.仅仅以貌取人是不可靠的。❷The ld lady had t rely n ther peple t d the shpping fr her.那位老太太只能依靠别人替她购物。❸Yu may rely n it that she wn't leave ut any imprtant infrmatin.你可以相信她不会漏掉任何重要的信息。
[归纳探究]rely n＝depend n 依靠，依赖；信任，信赖rely n sb./sth. t d sth. 依靠某人/某物做某事rely n it that...＝depend n it that... 相信……；指望……[单词积累]　rely依靠，依赖，相信[一言助记]　Many parents feel sme teachers in the kindergarten are nt reliable and they can't rely n them t lk after their children. In ther wrds, they can't rely n it that a kindergarten whse purpse is t earn mney will benefit their children a lt.很多家长觉得幼儿园的一些老师不值得信赖，他们不能依赖他们来照顾孩子。换句话说，他们不指望一所以赚钱为目的的幼儿园能对他们的孩子有多好。
[即学即练]　单句语法填空①Yu can rely n him _________ (respnd) t a challenge.②He is a ________ (rely) persn and yu can ask him fr help.③Yu may rely n ________ that the wrk will be finished ahead f time.
3.rescue n．营救，解救，救助，抢救(教材原句)Internatinal rescue teams sn began t arrive in the cuntry.国际救援队很快开始抵达该国。❶Have yu read the article abut the rescue f the tw miners?你读过关于营救两个矿工的那篇文章吗？❷At midnight we finally rescued the turists wh were trapped in the valley.半夜，我们终于救出了被困在山谷中的游客。❸When we were trapped in the ruins, the sldiers came t ur rescue.当我们被困在废墟中时，士兵们赶来救援。
[归纳探究]g/cme t sb.'s rescue＝rescue sb. 进行援救，营救某人rescue sb. frm... 从……中救出某人rescue team 救援队[联想拓展]　类似结构还有：cme t sb.'s aid来帮某人cme t sb.'s assistance援助某人
[即学即练]　单句语法填空/完成句子①She _________ (rescue) nine days after the plane crash.②我们来救他，把他从河里拉了出来。We _______________ and pulled him ut f the river.③他绝处逢生，从沙漠被救了回来。He ________________________ the desert.
was rescued
came t his rescue
was unexpectedly rescued frm
4.claim v．(战争、事故等)夺去(生命)；声称，断言；索要，索取　n．声称，断言；索赔(教材原句)Caused by exceptinally heavy snwfall within a shrt perid f time, they destryed buildings and frests, and claimed ver 256 lives.由于短时间内的特大降雪，它们摧毁了建筑物和森林，夺去了超过256人的生命。❶The earthquake has s far claimed ver 1，000 lives.到目前为止，这场地震已经夺去了1 000多人的生命。❷He claimed that he culd finish the wrk withut any help.他声称不需要任何帮助就可以完成这项工作。
❸It is claimed that sme dctrs wrk 80 hurs a week.据说一些医生每周工作80多个小时。❹He claims t have fund a temple n the peak.他声称在山顶发现了一座寺庙。❺They have made a claim fr the lss caused by the accident.他们已经为事故造成的损失提出索赔。
[归纳探究](1)claim ne's life 夺去某人的生命claim t d sth. 声称要做某事claim t have dne sth. 声称做过某事claim that... 声称……It's claimed that... 据称……claim sth. back 要回某物(2)make a claim 断言；索赔make a claim fr... 为……提出索赔；就……提出要求
[即学即练]　单句语法填空①Natural disasters ___________ (claim) mre than 1.6 millin lives in the last ten years.②He claimed ________ (be) a schlar but was nt such.③Tm claimed __________ (see) an alien, but n ne believed him.④________ is claimed that he saw the aliens with his wn eyes.
have claimed
t have seen
5.threaten v．威胁到，危及，威胁，恐吓❶Changing patterns f agriculture are threatening the cuntryside.农业模式的变化正在威胁着乡村。❷The attacker threatened them with a gun.袭击者用枪威胁他们。❸She is prepared t carry ut her threat t resign.对于将辞职的要挟付诸行动，她已做好了思想准备。
[归纳探究](1)be threatened with 受到……威胁threaten sb. with... 用……威胁某人threaten t d sth. 威胁要做某事threaten (that)．.. 威胁说……(2)under threat 遭到威胁be a threat t... 对……是一个威胁[单词积累]　threat n．威胁，恐吓threatening adj.恐吓的
[即学即练]　单句语法填空①David threatened ________ (reprt) his neighbur t the plice if the damages were nt paid.②Peple wh engage in _________ (threaten) behaviur shuld be arrested.③If their habitat _________ (threaten) r they cannt find enugh fd, their numbers may decrease.④These ancient wdlands are ________ threat frm new rad develpments.
threatening
is threatened
熟记下列重要短语①leave ut 省略；遗漏，忽视②than usual 比平时③in histry 在历史上④cnsist f 由……组成⑤pay attentin t 注意⑥result in 导致，造成⑦lead t 导致，造成⑧ver time 随着时间的推移⑨listen ut fr 注意听⑩suffer frm 遭受
省略一、语法现象感知①When (I was) in Japan, I tk many beautiful pictures.②Thugh (it was) cld, he still wre a shirt.③Mistakes, if (there are) any, shuld be crrected.④—Wuld yu like t study English with me?—Yes, I'd like t.⑤If (it is) true, this will cause us a lt f truble.
二、语法规则理解1．例句①②③⑤是________的省略。2．例句④是__________的省略。微点拨　在英语句子中，用词简洁是一条重要的表达原则。省略是为了避免重复，突出关键词并使上下文紧密连接。经常在从句中使用，与主句配合，使句子富于变化，增强表现力。例如，在以than, as引导的比较状语从句中，一些成分往往被省略，这会给理解带来一定的影响，而且这类句子出现频率较高。
省略一、状语从句中的省略在as if, if, thugh, when, where, while, n matter what, until, as等引导的状语从句中，若谓语部分含有be动词，而主语又与主句的主语一致或从句主语是it时，从句的主语和谓语中的be动词可以一起省略。❶When (she was) very yung, she began t learn t play the pian.她很小的时候就开始学习弹钢琴。❷Dn't cme in until (yu are) asked t.不叫你时，请你不要进来。❸He did as (he had been) tld.他按照被告知的那样去做了。❹Thugh (they were) tired, they went n wrking.虽然他们累了，但他们仍继续工作。
二、动词不定式的省略1．感官动词see, hear, feel, watch等和使役动词have, make, let等后接不定式时，不定式省略t。They made the by g t bed early.他们强迫这个男孩早睡。2．d nthing but, can't help but等结构常接省略t的不定式。We didn't d anything but stay at hme watching TV yesterday.昨天，我们没做任何事，只是在家看电视。
3．在特定语境中为了避免重复，当不定式再次出现时，在want, wish, hpe, try, plan, like, lve, hate后往往只保留t，而省略后面的动词。但不定式后有be, have时要保留be和have。❶My parents encuraged me t g t cllege, but I didn't want t.我父母鼓励我去上大学，但我不想去。❷—Are yu a teacher?——你是老师吗？—N, but I used t be (a teacher)．——不，但我以前是。
三、简单句中的省略感叹句中常省略主语和谓语；在一些口语中可以省略某些句子成分。❶What a ht day (it is)！多热的天啊！Hw wnderful (it is)！多妙啊！❷—(Will yu) Have a smke？——你抽烟吗？—N. Thanks.——不，谢谢了。❸We have nthing t d nw but wait.我们现在除了等没有别的事可做。❹Why (d yu) talk s much abut it?为什么大谈这件事呢？
四、并列句中的省略1．如果主语不同，而谓语动词中的一部分相同，则省略谓语动词中相同的部分。2．主语相同，谓语动词也相同，则两者均可以省略。3．主语相同，而谓语不同，则可以省略主语。4．在并列复合句中，如果that从句从属于第二个并列句且它的谓语动词和宾语等其他一些成分与第一个并列句相同时，这个that从句通常可以省略这些相同的部分。❶Jhn must have been playing ftball and Mary (must have been) ding her hmewrk.约翰一定在踢球，而玛丽一定在做作业。❷Old McDnald gave up smking fr a while, but (he) sn returned t his ld ways.老麦克唐纳戒了一阵子烟，可很快又抽上了。
Ⅰ.单句语法填空1．Yu have t demnstrate that yu are ________ (rely). Otherwise, they dare nt accept yu.2．On ________ (arrive) there, they set abut ding the experiment.3．Yesterday's weather frecast was __________ (exceptinal) accurate.4．They claim ______________ (discver) a cure fr the disease.5．She grabbed a knife and threatened ________ (kill) the thief if he didn't hand ver the stlen necklace.6．He prnunced the wrd in English very slwly and ________ (precise)．
exceptinally
t have discvered
Ⅱ.将下列句子改写成省略句1．The burn that she gt frm the irn was red and it was very painful.→The burn that she gt frm the irn was red and ____________．2．Just take a shrt break if yu are tired.→Just take a shrt break ________．3．I wuld d it fr yu, but I dn't knw hw t d it fr yu.→I wuld d it fr yu, but I dn't knw ________.4．They didn't visit their parents as much as they ught t visit their parents.→They didn't visit their parents as much as they ________．
very painful
5．Only sme f the students have dne a first aid curse but mst f the students haven't dne a first aid curse.→Only sme f the students have dne a first aid curse but ____________．6．Jhn will g abrad t travel but his brther will nt g abrad t travel.→Jhn will g abrad t travel but his brther ________．7．She std at the gate as if she was waiting fr smene.→She std at the gate as if ________________．
mst haven't
waiting fr smene
8．Wd gives ff much smke while it is burning.→Wd gives ff much smke ____________．9．Whenever it is pssible, they wuld stp him and ask him the three questins.→________________， they wuld stp him and ask him the three questins.10. He runs as fast as Bb runs.→He runs as fast as ________．
while burning
Whenever pssible