Unit 4Cyberspace课时作业(一)Warmup & Tomorrows World.单词拼写1Work hard and your dream will turn into_(现实) one day.2_(明显地)，your plan is against our will.3Surfing online is a way of_(娱乐)4The heart_(攻击) caused his death.5Sometimes_(人造的) flowers are more beautiful than real ones.6The_(罪犯) was caught stealing a car.7I thank those who have _(主动提供) to help me out of trouble.8Watching TV too much does_(伤害) to eyes.9Im going to visit the art_(画廊，画室) next Sunday.10Teachers behaviours_(影响) their students.单项填空1They do no _ to anyone and it is wrong to _them.Ahurt；harmBinjure；hurtCharm；hurt Dharm；injure2Henry，the phone is ringing.Do you want me to go?No，sit still._AIll get it BI am to get itCIm getting it DI am about to get it3While the telephone was ringing，she went on watching TV _ nothing had happened.Aeven if Bas ifCso that Deven though4TV supplies a lot of_to us.Aappointments BequipmentsCentertainments Dannouncement5He never tidies up his desk，so it is a _ of books and newspapers.Aconfusion BdisorderCchaos Dpile6My fathers words have a great_on me.I make up my mind_my English.Aeffect；improve Baffect；to improveCeffect；to improve Daffect；improve7He got himself into a dangerous situation where he was_to lose control over the plane.Apossible BlikelyCprobable Dpossibly8A woman was_and robbed by a gang of youths.Aattacked BattackCattained Dattach9(2013郑州高一检测)He sat in the classroom with his eyes _on the blackboard.Afocused BfocusingCwere focused Dwere focusing10_worried her a bit that her hair was turning gray.AThis BItCThat DThose11He wants to be a great painter one day.His dream will _sooner or later.Acome true BrealizeCcome out Dpublish12We should help the people who suffered in the _Aflood BfloodedCflooding Dfloods13(2013洛阳高一检测)The trees_in the storm have been moved off the road.Abeing blown down Bblown downCblowing down Dto blow down14He didnt tell us what he _thought.Areal BreallyCrealize Dreality15Would you like to_all your free time to the project?Acost BcontributeCdevoting Dspend.阅读理解AThe Internet is not perfect.There are many problems with it.The Internet is not organized.There is no one in charge of the Internet.It is sometimes difficult to find what you are looking for.It is also easy to get the wrong information on the“Net”21cnjySome businessmen cheat people on the Internet.Internet thieves can steal credit card numbers.Some advertisers send spam to email boxes.Email boxes are often filled with these unwanted advertisements.Illegal businesses can operate on the Internet.These businesses sell Xrated materials，cigarettes and alcohol to teenagers.The Internet has websites with information about making bombs，breaking the law and terrorism.Criminals can fool people，especially children，in chat rooms.They can spread poisonous information and attack new members.The Internet is the greatest advance in communication since human emerged.But it can also be like a dark alley in a dangerous part of town.Parents need to set parental controls on their children when they use the Internet.This will keep some of the bad materials away from their children.The Internet can be dangerous to computers，too.Some people who have evil intentions enjoy causing problems for other people they dont even know.They create computer viruses.A computer can get viruses by downloading a program that has a virus in it.Some viruses come by email.A virus can destroy the data a person has saved in computer files.A virus can cause a computer to crash.A virus can also reproduce itself！It can send copies of itself to everyone on a persons email address list.Then these peoples computers will have the same problems and cant work normally!1The underlined word“spam”in the third paragraph means _AlettersBproductsCuseless informationDpoisonous information2Why can illegal businesses operate on the Internet?ABecause there is no one in charge of the Internet.BBecause some people like to buy banned products on the Internet.CBecause Xrated materials，cigarettes，alcohol and so on can be sold well on the Internet.DBecause people who operate businesses on the Internet are criminals.3Parental controls are needed when children use the Internet because _Achildren cant use the computers wellBchildren may damage the computersCthe Internet is always unsafe for the childrenDpoisonous information may have a bad effect on childr