Module 1 Travel in time and spaceM1U1 Past and present一、 重难点：现在完成时（主要关注动词的词型变化）一般现在使过去时现在完成时二、 知识点解读1、 used to do 过去常常做某事例：You used to share food with me. 你过去常和我分享食物。 be used to doing sth = be used for doing sth 习惯做某事例： I am used to living in the town. 我已经习惯住在小镇上了。2、 turn into 使成为例：Turn part of the town centre into a new park. 将市中心的一部分变成新的公园。变为例：Turn lakes into fields. 围湖造田3、 put into把垃圾放进例：put the waste into the river. 将垃圾倒入河中。使进入例：put into practice 实行4、 marry过去式yi+edmarried 名词marriageget married = be married 结婚例：How long have you been married ? 你结婚多长时间了。Marry sb 与某人结婚例：Marry me 我们结婚吧Take in marriage例：Would you like to take in marriage with me. 嫁给我可以吗？5、 move away 离开 搬走例：I moved two blocks away. 我搬到两个街区以外的地方。Most of my old friends have moved away. 我们的大多数老朋友已经搬走。6、 in some ways “在某种程度上；在某些方面”例：Well, in some ways it is. 恩，在某种程度上是这样的。In some ways I agree with you. 在某种程度上我同意你的观点。7、 lonely 形容词：寂寞的，偏僻的例：feel lonely 感到寂寞She has a soft place in her heart for all lonely people. 她同情所有孤独的人。 alone 副词：独自的例：She has lived alone in this house for almost five years now. 他已经独自在这所房子里住了差不多五年了。8、 from time to time 不是，有时例：Now I feel a bit lonely from time to time. 现在我市场感到孤独。We have not seen each other for a long time, but we send emails from time to time. 我们已经好久没见过彼此了，但是我们时常用电子邮件联系。9、 keep in touch = stay in touch 保持联系例：So how do you keep in touch with each other ？那你们是如何保持联系的呢？Please stay in touch with me while you are In Beijing. 你在北京请和我保持联系。三、 语法解释现在完成时（present perfect tense）我们用现在完成过时表示从过去持续到现在的动作或状态；或已完成但对现在有一定影响的动作。例：He has lived here since he came to Nanjing. 自从来到南京，他就一直住在这里。（从过去持续到现在）I have lost my mobile phone. 我的手机丢了。（已完成但对现在有一定影响）现在完成时常和already, ever, just, never, recently, yet 等副词以及 since, for 引导的时间状语连用。Already 常用于肯定句，意思“已经” Yet 常用于否定句和疑问句，意思“还”例：He has already taken first prize twice. 他已经得过两次一等奖了。He has not returned the book to me yet. 他还没有把那本书还给我。现在完成时的动词构成：have/has + 动词的过去分词过去分词的变化：（大多数的过去分词变化的形式同动词的过去式，可参照动词的过去式变化规则。）不规则动词的过去分词变化方法：（1）原形、过去式、过去分词相同（A-A-A型）：cost/cut/hit/hurt/let/put/broadcast/burst/read/set/shut/spread/thrust/upset（2）原形、过去式相同，过去分词不同（A-A-B型）：beat/beat/beaten（3）原形、过去分词相同，过去式不同（A-B-A型）：come/came/come become/became/becomerun/ran/run overcome/overcame/overcome（4）原形不同，过去式，过去分词相同(A-B-B)：1.在动词原形后加一个辅动词d或t构成过去式或过去分词。2.把动词原形的最后一个辅音字母“d”改为“t”构成过去式或过去分词。3.其他feel/felt/felt sleep/slept/sleptleave/left/left smell/smelt/smeltkeep/kept/kept creep/crept/creptkneel/knelt/knelt sweep/swept/sweptspell/spelt/spelt weep/wept/weptcatch/caught/caught fight/fought/fought teach/taught/taught think/thought/thoughtstand/stood/stood lay/laid/laidunderstand/understood/understood pay/paid/paidbleed/bled/bled say/said/saidfeed/fed/fed stick/stuck/stucklead/led/led strike/struck/struckmeet/met/met tell/told/toldlearn/learnt/learnt sell/sold/soldlearn/learned/learned win/won/wonburn/burnt/burnt wind/wound/woundburn/burned/burned have（has）/had/haddeal/dealt/dealt hear/heard/heardmean/meant/meant lean/leant/leantdream/dreamt/dreamt lean/ leaned/leanedbend/bent/bent shine/shone/shonebuild/built/built shoot/shot/shotlend/lent/lent show/showed/shown，spend/spent/spent show/showed/showedflee/fled/fled sit/sat/satspeed/sped/sped lose/lost/lostspeed/speeded/speeded dig/dug/dugspit/spit/spit hold/held/heldspit/spat/spat get/got/got（AmE gotten）bring/brought/brought find/found/foundlight/lit/lit make/made/madelight/lighted/lighted buy/bought/bought（5）现在式，过去式，过去分词都不同（A-B-C型）：1.在动词原形后加-n或-en构成过去分词。2.过去式家-n或-en构成过去分词。3.变单词在重读音节中的的元音字母“i”分别为“a”（过去式）“u”（过去分词）。drive/drove/driven blow/blew/blownrise/rose/risen fly/flew/flownwake woke/woken grow/grew/growndo/did/done know/knew/knowngo/went/gone throw/threw/thrownsee/saw/seen prove/proved/proveneat/ate/eaten break/broke/brokenfall/fell/fallen choose/chose/chosengive/gave/given freeze/froze/frozenshake/shook/shaken speak/spoke/spokentake/took/taken steal/stole/stolenmistake/mistook/mistaken weave/wove/wovenforbid/forbad/forbidden begin/began/begunforget/forgot/forgotten drink/drank/drunkri