北师大版高中英语必修二(课标卷)课时作业1

北师必修2 英语（课标卷）Unit 4Cyberspace课时作业(一)Warm-up & Tomorrow's WorldⅠ.单词拼写1．Work hard and your dream will turn into________(现实) one day.2．________(明显地)，your plan is against our will.3．Surfing online is a way of________(娱乐)．4．The heart________(攻击) caused his death.5．Sometimes________(人造的) flowers are more beautiful than real ones.6．The________(罪犯) was caught stealing a car.7．I thank those who have ________(主动提供) to help me out of trouble.8．Watching TV too much does________(伤害) to eyes.9．I'm going to visit the art________(画廊，画室) next Sunday.10．Teachers' behaviours________(影响) their students.Ⅱ.单项填空1．They do no ________ to anyone and it is wrong to ________them.A．hurt；harm B．injure；hurtC．harm；hurt D．harm；injure2．—Henry，the phone is ringing.Do you want me to go?—No，sit still.________．A．I'll get it B．I am to get itC．I'm getting it D．I am about to get it3．While the telephone was ringing，she went on watching TV ________ nothing had happened.A．even if B．as ifC．so that D．even though4．TV supplies a lot of________to us.A．appointments B．equipmentsC．entertainments D．announcement5．He never tidies up his desk，so it is a ________ of books and newspapers.A．confusion B．disorderC．chaos D．pile6．My father's words have a great________on me.I make up my mind________my English.A．effect；improve B．affect；to improveC．effect；to improve D．affect；improve7．He got himself into a dangerous situation where he was________to lose control over the plane.A．possible B．likelyC．probable D．possibly8．A woman was________and robbed by a gang of youths.A．attacked B．attackC．attained D．attach9．(2013·郑州高一检测)He sat in the classroom with his eyes ________on the blackboard.A．focused B．focusingC．were focused D．were focusing10．________worried her a bit that her hair was turning gray.A．This B．ItC．That D．Those11．—He wants to be a great painter one day.—His dream will ________sooner or later.A．come true B．realizeC．come out D．publish12．We should help the people who suffered in the ________．A．flood B．floodedC．flooding D．floods13．(2013·洛阳高一检测)The trees________in the storm have been moved off the road.A．being blown down B．blown downC．blowing down D．to blow down14．He didn't tell us what he ________thought.A．real B．reallyC．realize D．reality15．Would you like to________all your free time to the project?A．cost B．contributeC．devoting D．spendⅢ.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”．Some businessmen cheat people on the Internet.Internet thieves can steal credit card numbers.Some advertisers send spam to e-mail boxes.E-mail 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 don't 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 e-mail.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 person's e-mail address list.Then these people's computers will have the same problems and can't work normally!1．The underlined word“spam”in the third paragraph means ________．A．lettersB．productsC．useless informationD．poisonous information2．Why can illegal businesses operate on the Internet?A．Because there is no one in charge of the Internet.B．Because some people like to buy banned products on the Internet.C．Because X­rated materials，cigarettes，alcohol and so on can be sold well on the Internet.D．Because people who operate businesses on the Internet are criminals.3．Parental controls are needed when children use the Internet because ________．A．children can't use the computers wellB．children may damage the computersC．the Internet is always unsafe for the childrenD．poisonous information may have a bad effect on children.4．We can infer from the passage that the key to solving the problems with the Internet is ________．A．to improve the computersB．to improve people's moral levelC．to order people not to use the InternetD．to find a medicine to kill computer virusesBIn most towns today, you can see teenagers standing over electronic machines with flashing lights, shooting at spaceships from other planets and dropping bombs on strange monsters (恶魔)．The machines have names like Space Warrior, Dark Invader and so on.It used to be believed that damage was done only to those strange visitors from outer space, but now it seems that they are striking back.Many teenagers like electronic games so much that they can't stop playing. They spend hours tightly holding the joystick (手柄) controls and constantly pressing buttons marked “fire”．They develop pains on their fingers because of the constant pressure.They play so much that the pains have no chance to cure properly.The rapid wrist movement required to guide the spaceship across the screen causes another problem: the muscles of the wrist and arm become so inflamed (发炎) and swollen (充血红肿) that they press against the bones. Thiscondition is what doctors now call “Space Warrior's Wrist”．Other strange aches and pains are also likely to affect the elbows and shoulders.Another even more alarming problem is shown by the case of a 17­year­old girl which was recently reported in the British Medical Journal.She had been playing various kinds of electronic games for more than two hours a day.Her father repaired games and machines and she could use the cassettes and systems in his workshop as often as she liked.One day, after playing a game called Dark Invader, she lost consciousness (晕倒) and fell to the floor.Doctors who examined her found she was suffering from an unusual illness caused by lights flashing at a particular frequency.5．Electronic games are found very popular with________．A．people living in townsB．students studying in high schoolsC．girls working in their fathers' workshopsD．young people6. “Space Warrior' s Wrist”is caused by________．A．constantly pressing the buttonsB．rapidly moving across the screenC．tightly holding the joystick controlsD．inflamed and swollen muscles of the wrist7．The case of a 17­year­old girl given by the writer shows that the writer________．A．supports playing electronic gamesB．feels very sorry for the girlC．disagrees with young people's playing electronicgamesD．feels worried about young people's poor health8．From the passage we can conclude that playing electronic games is________．A．enjoyable and helpful to the studyB．exciting but harmful to the health and studyC．interesting but harmless to the eyesD．amusing and satisfyingⅣ.翻译句子1．看起来一会儿就要下雨了。