高中英语unit3revision课件新人教版必修.ppt

,unit3 Life in the future,revision,Step1 : 复习导入 (知识框架) (10分钟),重点单词 重点短语 重点句式 语法,impression,previous,guide,lack,switch, optimistic,desert,instant,settlement 1.take up 2.lose sight of 3.sweep up 4.slide into 5.speed up,1.It seems(that ) 2.全倒装句式 inside was an exhibition of.,动词过去分词做状语,1impression n. 印象；感想；印记 impress vt. 使感动，使留下印象 impressive adj. 给人深刻印象的 have an impression of 对有印象 be under the impression that. 认为；以为 make an impression on 给留下印象 impress sth. on/upon sb. 使某人铭记某事物 impress sb. with sth. 使某人铭记某事物 be impressed by/at/with 对印象深刻 2previous adj.以前的；早先的 previous to.在前；先于(to为介词) previously adv.先前地；以前地 3guide n向导，指南，指导，导游，有指导意义的事物vt.指导，管理，带领 a guide to.的指南 guide post路标 guide sb. through/across带领某人穿越,单词详解,4instant n瞬间，刹那 adj.立即的，立刻的 in instant need of help急需救助 in an instant立刻；马上 表“一就”的有： the minute/moment/second/instant, as soon as ， instantly, immediately, directly 5. lack v& n 缺乏；短缺的东西 (1)v. (2)n. (3)lacking adj.短缺的；缺乏的 be lacking in缺少,6. switch vt. 转换 n 开关；转换 (1)switch on接上；打开 switch to变换到 switch off切断；关掉 (2)make a switch进行改变,1take up 占去(时间/空间)；开始学习；从事；继续；接受；拿起；改短(衣服)；加入 take off 脱(衣服)；起飞；成名 take in 吸入；领会；包含；收留(某人) take away 解除；消除(痛苦等) take back 收回(说过的话)；退回(货物)；与重 归于好，使回忆起 take down (write down, note down) 写下；拆除 take apart 拆开 take over 接管，接收 2lose sight of看不见 at the sight of.在看到时 catch sight of.望见，看到 in/within sight在视线内，可以被看见 in sight of.可以看见 out of sight看不见了，不被人看见,短语,3. speed up 加速 at high/low/full/top speed以高/低/全/最高速 at a speed of.以速度 with all speed尽快地 reduce speed减速 pick up speed加速,句式,1.There is similar to the “jet lag” you get from flying,but it seems you keep getting flashbacks from your previous time period这就与你乘坐飞机会产生时差反应相似，但是在你脑子里似乎会不断闪现以前的时光。 2Exhausted, I slid into bed and fell fast asleep. 我感到累极了，爬上床很快就睡着了。 exhausted为形容词在句中做伴随状语。 3. Hit by a lack of fresh air，my head ached. 由于缺乏新鲜空气，我感到头痛。 过去分词作状语时，若其逻辑主语是句子的主语，则与句中主语含有逻辑上的被动关系。 4.Inside was an exhibition of the most up-to-date inventions of the 31st century. 在太空里有第31世纪最新发明展 完全倒装,Step2： 课堂训练&疑难点拨 (18分钟),P56 on the book,Answer key for Ex1: 1.lost sight of 2.catch sight of 3.caught sight of 4.lost sight of Answer key for Ex2: typist, capsule, representative, impression, efficiency, motivation, instant, switch, flash, manufactured, materials, settlements,.,Answer key for Ex3: 1.This parcel of books is 250yuan including postage and packing. Please write down the receivers address and dont forget the postcode. 2.Decades ago, people used typewriters for formal documents, but now we use computers and printers to do the same work 3. Although it has a long shelf life, instant coffee may go solid if it is not kept dry . 4.One thousand years in the future , citizens of the earth may be able to dispose of their rubbish using an ecological system. 5.The snake was so greedy that it swallowed up the rat in one bite.,6. Dealing with people is one important aspect of a businessmans work. 7. When we came home from our walk across the fields we had mud all over out boors. 8. After six weeks in hospital, he was back on his feet and ready to start work.,P57,Answer key for Ex1: 1.Well-known for his books about South Africa, J M Coetzee won the Booker Prize. 2.A princess once owned a magical chair made of gold and silver. 3.On his birthday he received a mysterious present wrapped in gold paper. 4.Interrupted by the bell, he was unable to finish his speech. 5.Awakened by a noise at midnight ,she saw a thief in her room. 6.Seated,passangers should fasten your seat belts. Answer key for Ex2: called; Endangered; pointed; known; fallen; supported; terrified,Step：问题探究 (学生讨论)7分钟,as引导的状语从句有哪些，各有什么含义？ as 有conj.，prep.，adv.，pron.等词性，作为连词可引导五种状语从句，即时间状语从句、原因状语从句、方式状语从句、让步状语从句以及比较状语从句。 (1)引导时间状语从句 要区分when，while，as等连词的用法 when：句子谓语既可为时间点(即终止动作)，也可为时间段(即延续动作)。 while：句子谓语为延续动作，往往表示“一个动作发生时，另一个动作正在发生”。 as：常表示“一边做，一边做”，也有“随着”等义。 (2)引导原因状语从句 要区分because，since，as的用法 because：常回答why 的问句，语气强，用法正式。 since：有“既然”之意，与as一样，引导的从句常位于句首,(3)引导方式状语从句 同just as(语气更强)，意为“正如，照方法”。 (4)引导让步状语从句 要用倒装语序，即：n./adj./adv./v.p.pas/though主语谓语。名词表语提前用单数且无冠词。 用法同though(不用although)。 (5)引导比较状语从句 常构成as.as结构，第二个as为连词或介词。,完成句子 (1)_(随着时间的推移)，things seemed to get worse. (2)_(由于我们俩都累了)，lets just grab a take away. (3)_ (我们最好保持现场原样)until the police arrive. (4)_ (尽管她是个孩子)，Susan knows a lot. (5)I cant run _(像过去那样快),As time passed,As were both tired,Wed better leave things as they are,Child as she is,as fast as I used to,Step：课堂提升 （9分钟）,1.The manager like Marry very much because the _she left on the manager was quite good A.guide B.adjustment C.impression D.motivaton 2. After he retired from office,Roger_painting for a while,but soon lost interest Atook up Bsaved up Ckept up Ddrew up 3. Beauty is found everywhere. Our eyes do not show _sense of beauty, but _observation. A.a lack of ;a lack of B.lack of ;lacking in C.no lack of;no lack in C.a lack for ;a lack for,4.No matter how frequently_,the works of Beethoven still attract people all over the world. A.p