Unit 3 Electricity双基训练选择( ) 1.Y ou get a bill ________ water, gas, electricity every month.A. forB. onC. withD. about( ) 2. “Has _________ ever seen electricity?” Ben asked his Dad.A. somebodyB. anybodyC. nobodyD. no one( ) 3..Dad bought me a_________ of sweets as the prize.A. packB. pocketC. packetD. pockets( ) 4. There is going to _________ a concert tomorrow afternoon.A. beB. have C is D. has( ) 5. We must not ____ the lights when we leave the room.A. turn onB. turn offC. turn downD. turn up( ) 6.Water changes _________ ice when it is very cold.A. intoB. inC. forD. to( ) 7. At home, children must _______ fire without an adult.A. be carefulB. be careful withC. careful withD. be careful of( ) 8. --____ I have a look at your new pencil-box? --Y es, you _____.A. May; mustB. May; mayC. Must; canD. Can; must( ) 9. –Must I finish this work now? --No, you _____. Y ou can give me tomorrow.A. can’tB. may notC. mustn’tD. needn’t( ) 10. Do you know _____?A. where does water come fromB. how do we make electricityC. who’s looking foolish nowD. why is there grin on his face词性变换：1.The trees can protect themselves by ____________ a chemical that makes their leaves taste nasty. (produce)2.I’m ____________ sorry about my being late, sir. (real)3.Which is ____________, water or fire? (danger)4.Would you like to get me some ____________? (battery)5.Don’t always do such ____________ things. (fool)6.The rice ____________ helps make rice quickly and easily. (cook)7.Do you know it’s ____________ to ask a lady her age? (polite)8.In the university, students may use ____________ calculators in maths exams. (electricity)9.I have ____________ my suitcase already. (pack)10.It’s much __________________ to play with fire than to play with water. (danger)11.Y oung people usually have more ____________ than the old. (energetic)12.Batteries ____________ packets of electricity. (call)13.That hotel offers good ____________ to customers. (servant)14.There’s thunder and ____________. It’s going to rain. (light)15.It’s ____________ of you to believe him. (fool)16.Can you give me a reasonable ____________ for your being late. (explain)17.Miss Wang is our ____________ teacher. (chemist)18.Modern Family is a popular ____________ magazine. (month)19.Tom gave his teacher the ____________ for being late. (explain)20.Please ask an electrician to repair the ______ appliances. Don’t do it by yourself. (electricity)21.The fog became thinner. The ships became __________. (invisible)22 We can ask a ____________ to help with the housework. (serve)23.Jack used to communicate with his clients ____________. (polite)24. Mr Wang ____________ the trouble to his wife just now. (explanation)25.This road is ____________ to the airport. (connect)26.Mr Brown gets his pay from his boss ____________. (month)..改写句子：1.There’s something interesting in this book. (否定句)There __________ __________ interesting in this book.2.He looks like a funny monkey. (划线提问)__________ __________ he look like?3.Is the woman our new teacher? I want to know.. (宾语从句)I __________ __________ the woman is our new teacher.4.Where does electricity come from? Do you know..? (宾语从句)Do you know __________ electricity __________ from?5.When shall we start our meeting? I don’t know… (宾语从句)I don’t know __________ __________ __________ start our meeting.6.Ken washes his hair four times a week. (一般疑问句)__________ Ken __________ his hair four times a week?7.Y ou get a bill for it monthly. (划线提问)__________ __________ do you get a bill for it?8.The couple usually talked to their son politely. (划线提问)__________ __________ the couple usually talk to their son?9.Where are we going next? I have forgotten it. (宾语从句)I have forgotten __________ we __________ going next.10.We call the thick wires cables. (被动语态)The thick wires __________ __________ cables by us.11.Please get me a packet of electricity. (句意不变)Please __________ a packet of electricity __________ me.12.I have kept this book since last Monday. (划线提问)__________ __________ have you kept the book.13.I visit my grandparents twice a month. (划线提问)How __________ __________ do you visit your grandparents?14.Tom always talks to his teachers politely. (划线提问)__________ __________ Tom always talk to his teachers.15.The room is dark. They can’t read books. (句意不变)The room is not __________ __________ for them to read books.16.Please get me a packet of sweets. (句意不变)Please __________ a packet of sweets __________ me.17.We have a class meeting once a week. (划线提问)_________ __________ do you have a class meeting?18.Mike didn’t buy any books in the shop. (肯定句)Mike __________ __________ books in the shop.19.I suppose you’re right. (否定句)I __________ __________ you’re right.20.They went to the cinema together.(反意问句)They went to the. cinema together , __________ __________?21.John and Andy are singing loudly. (划线提问)__________ __________ singing loudly?22.Grandpa doesn’t even know what WTO is. (句意不变)Grandpa doesn’t know WTO __________ __________.23.Tony is so fat that he can’t jump high. (句意不变)Tony is __________ fat __________ jump high.1. Read the passage and fill in the blak with proper words given. (阅读语段，用所给单词填空，1奏)himself on the drum. He can also talk 2 his audience. Y ou may think he is a famous pianist. But in fact, he is a robot named Teotronico. Teotronico is the only robot in the world able to do all those things at the 3 time. The robot Teotronico is really good at 4 the piano. He has more fingers than a human has and he can give 5 pressure to the keys. The inventor made 19 fingers for the robot because it is the perfect number to cover any song. Teotronico is also a good singer. The song he sings is recorded in his system (系统).He also has video cameras in his eyes so he c an “see”those around him. The inventor of the robot is an Italian. He 6 over four years in 7 the robot. Teotronico is now very 8 and has performed at many parties.2Read the passage and fill in the blak with proper words given. (阅读语段，用所给单词填空，请填入对应字母)：(共8分)mean that the students who do not well are stupid. There can be many __1__ why a student does not do well. Perhaps the person is very smart but doesn’t write exams very well. Perhaps they are smart _2__ lazy and do not know how to study and don’t study hard. Perhaps, in fact, they are not smart at all. The exam results don’t really tell you that; they simply tell you how well you have done compared with __3__students at the same grade level as you are. In other words, exams do not measure (衡量) accurately how smart you are because they c an’t measure that.However, this is the way the system works and there isn’t much you can do with it. If you __4__ that getting good marks on an exam is about how to prepare for and to write exams and not just about what facts you know, it can help you to do __5__.The good news is that it will be over soon. Y ou are very young and, for you, a __6__ seems like a __7__ time, but compared with the rest of your life, you will finish school and go into the working world soon enough. Getting a good job, of course, depends on having done well in school, so you need to decide that you are going to do well, no matter how __8__ it is.8B M1 Unit 3 Electricity 答案选择1. A2. B3. C.4 A 5.A 6. A 7.B 8.B 9.D 10.C词性变换：1.producing2.really3.more dangerous4.batteries5.foolish6.cooker7.impolite8.electric9.packed 10.more dangerous 11.energy 12.are called 13.services 14.lightning 15.foolish 16.explanation 17.chemistry 18.monthly 19.explanation 20.electrical 21.visible 22. .servant 23. politely 24.explained 25.connected 26.monthly改写句子：1.is nothing2.What does3.wonder if4.where, comes5.when we shall6.Does, wash7.How often8.How did 9where ,are 10.are called 11.buy/get, for 12.How long13.many times 14.How does 15.bright enough16.buy, for17.How often 18.bought some 19.don’t suppose 20.didn’t they 21.Who are 22.at all 23.too, to1.H C G A B F E I2.DFAB IGEC。