素材Unit3Theworldonline-Welcometotheunit語言點(diǎn)牛津譯林版選修7

1、1. Search for information on a variety of topics. (P33) 就各種話題搜索信息。 searchv. 1) I or T to look somewhere carefully in order to find sth.:The police searched the woods for the missing boy.She searched his face for some sign of forgiveness, but it remained expressionless.He searched (in/through) his po

2、ckets for some change.I've searched high and low (= everywhere), but I can't find my birth certificate.The detectives searched the house from top to bottom (= all over it), but they found no sign of the stolen goods.FIGURATIVE: She searched her mind/memory for the man's name, but she cou

3、ldn't remember it.FIGURATIVE: People who are searching after inner peace sometimes turn to religion.2) I to try to find the answer to a problem:Philosophers have searched for millennia but they haven't found the meaning of life.3) T A police officer who searches you or your possessions looks

4、 for sth. you might be hiding: The men were searched for drugs and then released.n. 1) C when you try to find someone or sth.:After a long search, they eventually found the missing papers.We're doing a computer search for all words beginning with 'high'.The police carried out/conducted/m

5、ade a thorough/exhaustive search of the premises, but they failed to find any drugs.2) S when you try to find an answer to a problem:the search for happinessa variety ofn. 1) C a different type of sth.:The article was about the different varieties of Spanish spoken in South America.This variety of r

6、ose is especially hardy and drought-resistant.Our supermarket stocks apples in several different varieties.2) S many different types of things or people:She does a variety of fitness activities.The equipment could be used for a variety of educational purposes.Manufacturers need large sales to justif

7、y offering a big variety in export markets.2. Shop for the top brands at the best prices all over the world. (P33) 以最低價購買世界品牌 的產(chǎn)品。atprep.(表示地點(diǎn))在 word that shows whereI met my uncle at the bus stop.I live at High Street.I met a friend at the theatre.My mother is a teacher at the village school.Isabel

8、 is at home.He is at the door. He is waiting at the gate.He stood at the corner of the street.He sta nds at the end of the street.The little girl skipped along at her moth er' s side.prep.（表示時間）在時（刻） word that shows whe nI'll be back at five.We leave at two o'clock.She was barely walking

9、 at the age of four.Sometimes I can't sleep at ni ght.I was born in 1874 at Christmas.At the end of the week we had an En glish Party.The story was well known at the time.prep. 在方面 word that shows whatHe is very good at Fren ch.He is good at football.prep.（表示速度等）word that shows how fast, etc.; w

10、ord that shows how much, etc.We drove at 60 kilometers an hour.The pla ne is flying at high speed.He ran at full speed.I bought two lem ons at 12 pen ce.He sold them at a loss.prep.向?qū)?zhǔn) towardsHe threw the stone at me.Her mother smiled at her.He took a gla nee at the pain ti ng.The soldiers rushed at

11、 the en emy.prep. 指活動情況，狀態(tài)，方式activity, state, mannerThey are now at work.He was at （his） dinner.What are you look ing at?What is he at?I will go now at my less on.prep.表示原因 express ing causeThe baby stopped crying at the sight of its mother.咼考鏈接The placethe bridge is supposed to be built should beth

12、e cross-river traffic isthe heaviest.A. which; whereB. at which; whichC. at which; whereD. which; in which答案及解析：選C. at which the bridge is supposed to be built 在句中充當(dāng)定語從句，修飾theplace, where引導(dǎo)的是表語從句。3. Keep in touch with family members wherever you are in the world. （P33） 無論你在世界的 任何地方都可以與家人保持聯(lián)系。whereve

13、radv., conj.1)to or in any or every place:We can go wherever you like.Wherever I go I always seem to bump into him.All across Europe, wherever you look, marriage is in decli ne and divorce rates are soari ng.Wherever you choose to live there are always going to be disadva ntages.He lives, appare ntl

14、y, in Little Overi ngton, wherever that is.2) in every case:Wherever possible I use honey in stead of sugar.adv. used in stead of where ' to add emphasis to a phrase, usually express ing surprise:Wherever did you find that hat!Wherever did you get that idea!Wherever does he get the money from to

15、 go on all these exotic journ eys?咼考鏈接In peace, too , the Red Cross is expected to send helpthere is human suffering.A. whoever B. however C. whatever D. wherever答案及解析：選D.根據(jù)句意此處應(yīng)為 wherever引導(dǎo)的讓步狀語從句。4. The future has no limits! (P33)將來沒有極限！limitn. 1) C the greatest amount, nu mber or level of sth. th

16、at is either possible or allowed:Is there a limit on the amount of money you can claim?I think we ought to put a strict limit on the amount of time we can spend on the project.There ' s a limit to the number of times I can stop what I' m doing just so I can help him!We set a time limit of thirty mi nu tes for the test.2) U INFORMAL the amount of sth. that is enough and not too much:Three martini cocktails are my limit.I won't have any more - I know my limit!v. T to con trol sth. so that it is not greater tha n a particular amount, nu mber or level:I&#