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1.
1.常见用语 a.请找某人接电话 Hello!May/Could/Can I speak to…,please? b.问对方是不是某人 Is that…(speaking)? c.问对方是谁 1)Who's speaking(calling)? 2)Who's that(speaking/calling)?  相似文献   

2.
(2007年高考天津卷理科21):在数列{}an中,a1=2,a n 1=λa n λn 1 (2?λ)?2n(n∈N?),其中λ>0.(I)求数列{}an的通项公式.以下是命题组提供的两种参考答案.解法一a2=2λ λ2 (2?λ)2=λ2 22,223233a3=λ(λ 2) λ (2?λ)2=2λ 2,334344a4=λ(2λ 2) λ (2?λ)2=3λ 2.由此可猜想出数列{}an的通项公式为an=(n?1)λn 2n.以下用数学归纳法证明.(1)当n=1时,a1=2,等式成立.(2)假设当n=k时等式成立,即ak=(k?1)λk 2k,那么ak 1=λak λk 1 (2?λ)?2k=λ(k?1)λk λ?2k λk 1 2k 1?λ?2k=[(k 1)?1]λk 1 2k 1.这就是说,当n=k 1时等式也成立.根据(1)…  相似文献   

3.
1.What can I do for you?/Can(May)I help you?我能帮你吗(您要什么)? 2.Which shirt(pen...)do you like?你想买哪一件衬衫(笔……)? 3.What size(colour/kind...)do you want?你想买哪种型号(颜色、种类……)? 4.Is this(Are these)all right?这个(这些)可以吗? 5.It's too big/small.它太大/小了。6.What about/How about this/that/one(these/those)?这(那/这些/那些)怎么样?  相似文献   

4.
谜语(英文)     
1.I'mbiggerthanaduckandsmallerthanadog.Ihavetwolongearsandaveryshorttail.Icanjumpandrunveryfast.WhatamI?2.Whatanimalcarries(携带)itshouseonitsback(背部)?Key:1.arabbit2.asnail谜语(英文)@文怡  相似文献   

5.
Istherelifeonotherplanets?Wedonotknowforsure.In1997,theAmericanspacecraftVoyager1andVoyager2werelaunched(发射)intospace.Thespacecraftcarriedmessagesofgreetingforanyintelligent(有才智的)lifeforms.Therewasadifficultquestiontoanswerbeforethemes-sagesweresent.Howcouldyou“talk”toanalien(外星人)onanotherplanet?Howcouldaliensunderstandhumanlifeonearth?Inotherwords,howshouldthemessagesbepresented(表露)?Manypeopleweresurprisedwhenscientistsdecidedtosendmusicinsteadofwordsorpictures.Thescientistsd…  相似文献   

6.
(接上期)Partofsharing3-MeetingAgain(分享情景3再次相逢)Sabrina:Hi,howareyou?David:I'mgreat!Uh,howareyou?Sabrina:Good.I'mjustsurprisedtoseeyouhere.David:Well,youknowme,don'tya?Uh,canIgiveyoualift(1)?Sabrina:Areyouonyourwayhome?David:Yes.Sabrina:Well,that'sconvenient.Yousureyouwouldn'tmind(2)?David:Yes...Yaknow,Ican'trememberthenameofyourstreet.Sabrina:DelorisLane.David:What?That'swhereIlive.Sabrina:Smallworld.David:Biglane.Sabrina:Youdon'trecognizeme,doyou?(3)David:Yeah,ofcourseId…  相似文献   

7.
猜谜     
维果 《今日中学生》2007,(20):36-37
1.What word is pronounced wrong even by the best of scholars(学者)? 2.Why are grandpa's false teeth(假牙)like stars? 3.Why do fish live in water?  相似文献   

8.
1.What starts with E.ends with E and only has one letter?2.Whv did the bat hit the ball?3.What five letters do you say when you look into the refrigerator and are disappointed(失望的)?4.What goes up when the rain comes down?5.Why does the fireman have red suspenders(吊裤带)?Key:1.An envelope.2.To make a home run.3。YRUMT(Why are you empty?)4.An umbrella.5.To keep his pants(裤子)up.  相似文献   

9.
对于较复杂的分式不等式()()a f xb???<(1)然后一一求解,最后求它们的交集,但这种方法比较繁琐,而对于不等式组(1)可等价于()0,()0,()()0,()()0,()()0,()()0.g x g xf x ag x f x ag xf x bg x f x bg x???>?>???亦可等价于[f(x)?ag(x)][f(x)?bg(x)]<0,即有下列的结论:不等式()()()a f xb a b相似文献   

10.
English Riddles     
益智 《今日中学生》2011,(29):25-26
1. What word is pronounced wrong, even by the best of scholar(学者)?2. Why do you buy books?3. Why doesn’t your husband fix the leaky (漏雨的) roof?4. Why are grandpa’s false (假的) teeth like stars?  相似文献   

11.
脑筋急转弯     
1郾Whatgetsbiggerthemoreyoutakefromit?A郾AirB郾WaterC郾Hole2郾Howmanybricks(砖)doesittaketocompleteabuildingmadeofbrick?A郾OneB郾ManyC郾Onethousand3郾Whatkindofroomhasnowalls?A郾AnunfinishedroomB郾AmushroomC郾Aglassroom4郾Youhaveabarrel(桶)ofwater.Itweighs20kilos.Whatmustyouaddtomakeit12kilos?A郾AirB郾WaterC郾Hole5郾Whichwasthefirstplanettobediscovered(发现)?A郾TheearthB郾ThemoonC郾Thesun6郾Howmuchfoodcanyoueatonanemptystomach(胃)?A郾OneB郾TenbitesC郾More7郾Whatcanbeswallowed(…  相似文献   

12.
Ⅰ.根据句意, 用括号中所给英语和汉语的正确形式填空 1. What!s your phone ____ (号码)? 2. Hello. Nice ____ (meet) you. 3. What are your ____ (名字)? 4. My ____ (one) name is Jim. 5. What is ____ (他的) name? 6. My friends ____ (be) Tom and Jim. 7. Jones ____  相似文献   

13.
Ⅰ.词汇A)词形变换根据句意用括号内单词的正确形式填空。1.This blouse is______(she).2.Do you often go______(shop)with your mother on Sundays?3.How many______(tomato)do you want?4.Are these sweaters the______(twin)?5.You are late again.Why don’t you come to school a little______(early)?B)词语释义选择与句中划线部分意思相同或相近且语法正确的选项。  相似文献   

14.
丫第一部分基础演练L根据汉语提示完成句子l.Jenny 15_(做作业)at home.2.Dave 15_(看电视).3.Theyare_(吃晚餐)4.whatare they_(谈论)?5.Mybrother,Seott 15_(打篮球)。6.His father 15_(看报)。7 .Wllat ao they_(看)?8 .Wllereare the birds?Theyare_上).9 .What 15 he doing?He 15_IO.W」10 are Lisa and Tim_(且.单项选择1 .The Whitefamilyare_the mateh in the sitting room now.(在树(踢足球).谈话)?foothall士士士士士士士8A .watehing B.reading C .looking D.seeing2 .Look!Some people_apples. A .15 pieking upB·a…  相似文献   

15.
Seeing a Doctor     
1.医生询问病人的用语。 What’s the matter/wrong/the trouble?怎么啦? What’s the matter/wrong/the trouble with you(your leg,ect)?你(你的腿)怎么啦? Is there anything wrong with you(your head)?你(的头)怎么啦?  相似文献   

16.
WSE YOUR HEAD     
凌云 《今日中学生》2011,(32):24-25
1.What do you have that you can’t lend to others?2.If your uncle’s sister is not your aunt,what relation is she toyou?3.What is a fish net made of?4.What’s the difference between a monkey and a flea(跳蚤)?5.What has four fingers and a thumb(拇指)but no flesh(肉)and bone?6.Why do giraffes(长颈鹿)have long neck?7.How can you make6out of three5’s or out of three7’s?8.Who works only one day in a year but never gets fired(开除)?  相似文献   

17.
脑筋急转弯     
1.能(néng)遮住(zhēzhù)一切东西的是什么?2.什么样的果子千万别吃(chT)?3.借什么东西可以不还(huán)?4.什么水包含着喜、怒、哀、乐(xǐnùāiIè)和酸、甜、苦、辣(suān tián kǔ là)?  相似文献   

18.
Use Your Mind     
1.FarmerBrownhadanorchard(果园)offruittrees.Athird(三分之一)ofthemwereappletrees,aquarter(四分之一)werepeartrees,andafifth(五分之一)wereplum(李子)trees.Thereweretwenty-sixcherry(樱桃)trees.HowmanytreesdidfarmerBrownhavealtogether(总共)?2.MrBlackboughtahorseandatrapfromalocalfarmer.Itturnedoutthatfivetimes(倍)theprice(价格)ofthehorsewasequalto(相当于)twelvetimesthepriceofthetrap.Thepriceofthetwotogetherwas85pounds.Canyouworkoutthepriceofeach?Keys:1.Onehundredandtwentytrees.2.Thecostofthetra…  相似文献   

19.
1.What letter is a part of the head? 2.What letter is a kind of drink? 3. What letter always asks questions? 4.What letter is a large area(大面积的)of water? 5. What letter can see? 6.What letter is an insect(昆虫)?  相似文献   

20.
竞赛之窗     
1 .Myn~i。Tom.Myfad1erandmotherhavesirchildren(孩子).H迸areboysandh碰aregirls.Howmany(多少)b加lllers and sisters havel?1 have brother and siste玲. A.3;2 B.3:3 C.2:3 D.2;4 2 .u(如果)therearefourbeesonthetable,andlk沮(打死)one.Howm娜isleft(剩下)? A .3 B .2 C .1 D .0 3 .wearefourbrothersliving胜)imder~伽f(屋顶),weare_. A.切山les B .ehairs C .the leg Ofatal〕le D.beds 4 .why(为什么)15 the letter Alike12o’clock(点钟)?Bec~(因为)itisinthemiddleofeses一一.A .b昭B .day C .cap5 .Whoisthewife(妻…  相似文献   

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