1、新知识预习探索.重点单词1significance n.意义；意思；重要性；重要意义significantadj.有意义的；意味深长的；重要的significantly adv.有意义地；意味深长地；重要地2receptionist n.接待员；招待员reception n.接待处；接待区receptive adj.乐于接受的；愿意倾听的3radioactive adj.放射性的；有辐射能的radioactivity n.放射性4division n.分割；划分；分配；分界线divide vt.划分；分配5applaud vi.&vt.鼓掌欢迎；赞赏applause n.鼓掌欢迎；喝彩；称赞6
2、accelerate vi.&vt.加速；促进acceleration n.加速；促进.重点短语1look ahead 向前看；为将来打算2date back 追溯到3be dizzy with 因而晕眩4if only 要是就好了/但愿5be scooped up 被搂过去；被舀出6with relief 释然；松口气7hand over 递过去8加快步伐accelerate_ones_walk9代表on_behalf_of10尽管in_spite_of11在前面ahead_of12受够了，厌烦be_fed_up_with.重点句型1If_only_it_could_be_just_like
3、_last_year!要是能像去年那样就好了！2Having_heard_wolves_howling_in_the_forest,_Lala accelerated her walk up the path to the caves fearing that there might be wild beasts lying_in_wait_for_her.沿着回洞穴的路走着，听到森林里狼的嚎叫声，拉拉加快了步伐，她担心会有野兽隐蔽埋伏着，正等着她。3She had_almost_reached_her_destination_when_a_delicious_smell_arrested_h
4、er_progress and she stopped.快到达目的地的时候，一阵香气扑鼻，她停下来，不往前走了。4Abruptly she sat down,only_to_be_scooped_up by her laughing,shouting sister,Luna.突然间她坐了下去，但又被她那又笑又叫的妹妹卢娜一把搂了起来。5He chose one large stone and began to use it like a hammer striking the edge of the scraper that needed_sharpening.他选了一块大石头，把它当作锤子敲
5、打一个需要磨快的石刮刀边沿。.根据课文内容选择最佳答案1This text is mainly an imaginative story about a family feast of _.Aa boyBa manCa girl of the earliest peopleDa modern girlC2From the first paragraph,we can learn that the family groups mainly lived on _.Afish BhuntingCcrops DfarmingB3Lalas guests came to _.Aenjoy a feast
6、Btalk about an important thingCdanceDsee LalaC4Dahu went out to sharpen the scrapers to _.Akill an enemyBuse them as weaponsCcut up the meatDcut stonesA5From the text we can infer that family groups _.Alived togetherBlived far awayClived in the same caveDlived separatelyD.根据课文内容，完成语法填空Not 1._ _(look
7、)ahead and planned better,Lala felt very worried about the preparations for her feast.So she turned for home quickly with her 2._(collect)of nuts and fruit.3_ she was near home,a delicious smell arrested her progress and she became dizzy 4._ hunger.She saw her mother and the older children 5._(prepa
8、re)the deer and pig meat over the fire.Just then Dahu,her husband,as well as the 6._(good)toolmaker,came back with several fish.Later he began his task:he sharpened his scrapers 7._ they were sharp enough to cut 8._ the meat and to scrape the fish.Soon,9._ first of the guests began to arrive.Lala ho
9、ped it was going to be just as wonderful 10._ last year.having lookedcollectionWhenwithpreparingbestuntiluptheas新课堂互动探究1.His university was aware of the significance of his work.他所在的大学知道他的工作的重要性。significance n.意义；意思；重要性；重要意义Few people realized the significance of his role in the whole matter.很少有人意识到
10、在整个事件中他的作用的重要性。The factory set up the year before is of great significance to this areas economy.前年建起的这个工厂对这个地区的经济有着重大的意义。【知识拓展】【即境活用】单句改错(1)We should know the significant of keeping healthy._语法填空(2)This new discovery of oil is of great _(significant)to this countrys economy.significant改为significanc
11、esignificance2Somehow he cycled thirty miles to Dr.Black because there was no alternative means of transport.由于没有其他的交通方式，他总是想办法骑车30英里去拜访布莱克博士。somehow adv.1以某种方式或方法2由于某种未知的原因；不知为什么，不知怎么地We managed to get the job done somehow.我们总算设法干完了那项工作。Somehow or other I must get a new job.我必须想方设法找份新工作。She looked
12、different somehow.不知怎么地，她看上去变了。Somehow he couldnt get to sleep.不知为什么，他就是睡不着。【知识拓展】someway，somehow，somewhat，anyhow和anyway的区别1somewaysomehow以方式；不知怎么地2somewhat有点儿，有几分3anyhowanyway adv.不管怎样，无论如何，不论用何种方法Anyhow I must finish the work today.无论如何我必须今天完成这项工作。The price is somewhat higher than I expected.这价格比我
13、预料的高了一些。【即境活用】用somehow,somewhat或anyhow填空(1)The world economy has improved _ since the end of last year,but major problems and challenges are not fully solved.(2)She is a kind girl,but he is afraid of her _.somewhatsomehow3Well,Im_fed_up_with all the attention and.噢，我厌烦了这么多关注be fed up with 受够了；厌烦；厌倦I
14、m fed up with such a boring life.我受够了这种枯燥的生活。People are fed up with all these traffic jams.人们厌烦这么多的交通堵塞。【知识拓展】be fed up 厌烦feed back 反应，反馈feed sb./sth.on sth.用喂养feed sth.to sb./sth.喂给feed on sth.动物以为食；靠活live on sth.人以为主食；靠生活【即境活用】完成句子(1)_ _(厌烦了)waiting for Jane,he headed home.(2)Im really _(受够了)the w
15、eatherwhy cant it be sunny for a change?Fed up withfed up with4Read the passage and find out what the possible work divisionwas between men and women in primitive societies and fill in the chart below.阅读这篇文章并弄清在原始社会男女之间的可能的工作分工，然后填写下面的表格。division n.分割；划分；分配；分界线；除法Is that a fair division of the money
16、?那样分款公平吗？Is this a simple problem in division?这是简单的除法吗？【知识拓展】divide vt.separate vt.意义分；区分；划分分；分开；分离；隔开；隔离；切断；割断。搭配 divide sth.into把分成separate A from B把A和B分开be separated by被隔断get/be separated from和分离开；和分散内涵强调把整体分成几个小部分强调把两个独立的整体分开【即境活用】填入适当的介词(1)The teacher divided the cake _ the children.(2)If you d
17、ivide 20 _ 4,the answer is 5.(3)She divided the food _ four equal shares.(4)The two gardens are separated _ a wall.amongbyintoby5If_only it could be just like last year!要是能像去年那样就好了！If only I were rich.但愿我很富有。If only I had gone by taxi.我要是乘出租车去就好了。【知识拓展】【即境活用】语法填空Did you meet with the famous space he
18、roes,Fei Junlong and Nie Haisheng?If only I _(come)here earlier!had come6She had felt so proud as the group shouted loudly to applaudhis choice.当族人为他的选择欢呼鼓掌的时候，她觉得非常自豪。applaud vi.&vt.鼓掌欢迎；赞赏The audience applauded the singers performance.观众为歌手的表演热烈鼓掌。The teacher applauded my efforts by praising my pr
19、ogress.老师表扬了我的进步，对我的努力表示赞许。I applaud her for having the courage to refuse.我赞赏她敢于拒绝的勇气。【知识拓展】applause n.U鼓掌欢迎The speaker was shocked at the lack of applause from the audience.演讲者对观众稀稀落落的掌声感到十分意外。applaud sb./sth.向某人/某事鼓掌表示欢迎或赞赏applaud sb.for sth.因赞赏某人【即境活用】完成句子(1)_(我们称赞)her decision.(2)The conference
20、rose to _(为演讲人鼓掌)We applaudapplaud the speaker7If only she had looked_ahead and planned better this year!她今年要是早有预见，计划得更好些就好了！look ahead 展望未来；为将来着想Have you looked ahead to what youll be doing in five years time?你是否想过五年后你要做什么？He regretted that he hadnt looked ahead.Otherwise,he would live in a big cit
21、y happily now.他后悔没有计划未来。否则，现在他会幸福地在某个大城市里生活。【知识拓展】look ahead后不能直接跟宾语，要接宾语须加介词to。look down on sb./sth.轻视；瞧不起look forward to 期望，期待look into 调查，审查look on 旁观look on.as 把看作look out for.小心某人/某事look through 快速浏览【即境活用】完成句子(1)_ _(展望未来),we must expect changes to be made in our system of teaching.(2)Would you
22、please _(浏览)the paper for me and see if there are any obvious mistakes?Looking aheadlook through8She had almost reached her destination when a delicious smell arrested her progress and she stopped.快到目的地的时候，一阵香气扑鼻，她停了下来，不往前走了。The policeman arrested the thief.警察逮捕了小偷。Poor food arrests the natural grow
23、th of children.粗劣食物妨碍儿童的自然成长。The bright colors of the flowers arrested Susans attention.花的艳丽色彩引起苏珊的注意。2n.逮捕；拘留She was under arrest on suspicion of murder.她因涉嫌谋杀而被逮捕。【知识拓展】arrest sb.for 因而逮捕某人arrest sb.on a charge of 以罪而逮捕某人under arrest 被捕place sb.under arrest 逮捕某人【即境活用】完成句子(1)Attempts are being made
24、 _(遏止蔓延)of the disease.(2)An unusual painting _(吸引了他)to arrest the spreadarrested his attention9All the objects are from the same excavation site in Sanxingdui and can be dated_back_to between 3,000 and 5,000 years ago.所有的物品都来自于三星堆的一个挖掘点，时间可以追溯到3000到5000年前。date back to追溯到；始于；自至今The college dates bac
25、k to medieval times.这所学校创办于中世纪。The custom dates back to hundreds of years.这一习俗可以追溯到几百年前。【知识拓展】【即境活用】完成句子(1)This is an old building _(追溯至14世纪)(2)This custom _(起源于)the 16th century.dating back to the 14th centurydates back to新思维随堂自测.用所给单词的适当形式填空1There was a _(system)approach to solving the problem.2Th
26、e meeting is of such great _(significant)that I have to attend it.3Its very rude _(spit)at someone.4The hotel _(reception)wants to know when we will be checking out tomorrow morning.5The audience _(applause)the singer for three minutes.systematicsignificanceto spitreceptionistapplauded6He was _(arre
27、st)on a charge of murder.7The police have already _(identification)10 murder suspects.8It is the custom of this _(academic)to make an annual award for outstanding researchers in chemistry.9_(divide)of opinions among themselves contributes to their defeat.10In order to catch up with and surpass the a
28、dvanced world levels well have to _(acceleration)our speed.arrestedidentifiedacademyDivisionaccelerate.完成句子1The speaker gave us a talk _ _ _(非常重要)2I _ _ _ _(受够了)the boys naughty behaviour.3_ _(要是)my mother were with me now!4_ _(从长远看),I think we need to develop some new products.5She went away _ _ _(结果留下了)her two children by themselves.6The temple _ _ _(追溯到)the Tang Dynasty was destroyed in the earthquake.7We were watching TV _ _ _ _ _(灯突然灭了)of great significanceam fed up withIf onlyLook aheadonly to leavedating back towhen the light went out