A.has a positive influence on one’s IQ |
B.results in the change of part of the brain |
C.lies in the problem of lack of concentration |
D.is caused by too much use of modern technology |
A.the important function of advanced technology |
B.the damage to one’s brain done by unhealthy habits |
C.the relevance between IQ and use of modern technology |
D.the relationship between intelligence and working effectiveness |
A.examined carefully | B.copied patiently |
C.corrected quickly | D.a(chǎn)dmitted freely |
A. |
B. |
C. |
D. |
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A.How to make payment online. |
B.Ways of using delivery online. |
C.Advantages of an online-auction system. |
D.How to use an online-auction system. |
A.will get what he wants in ten days |
B.should make payment immediately |
C.has chances to make higher bids |
D.may check its picture and description |
A.through an online payment system |
B.through a local banking system |
C.by sending the money to the seller |
D.by paying the deliveryman directly |
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A.can easily be filled up with gas. |
B.a(chǎn)re likely to sell well in the future. |
C.a(chǎn)re mainly used in the United States |
D.won’t be used in the London Olympics |
A.Japanese companies | B.Hydrogen buses |
C.The FCX Clarity | D.Filling stations |
A.In Barcelona | B.In Hamburg | C.In London | D.In Los Angeles |
A.there are sixty hydrogen filling stations all over the world |
B.hydrogen vehicles fueled by water will be very expensive |
C.Honda will mass-produce the FCX Clarity by 2012 |
D.Honda produced its first hydrogen car in 1989 |
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A.Edison’s building | B.a(chǎn) small part of the city |
C.the whole city | D.the world |
A.set up generators | B.lay wires | C.built city streets | D.build a power house |
A.set up the electric system |
B.produce several large generators |
C.dig the deep trenches |
D.lay fourteen miles of wire into the trench |
A.excited | B.frightened | C.uneasy | D.light-hearted |
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A.To catch them. | B.To research them. |
C.To kill them. | D.To protect them. |
A.human beings only know a little about marine life |
B.the oceans don’t need to be further explored |
C.he considers exploring the ocean a dangerous thing |
D.the marine creatures mainly live on the top of the ocean |
A.About 2,000 scientists from America are involved in the project. |
B.The census of sea life will last for ten years. |
C.230,000 new marine animals have been found. |
D.The sea floor is at a depth of 400 meters. |
A.To tell the news that new marine creatures are being discovered |
B.To encourage people to find new marine creatures |
C.To prove the importance of marine creatures |
D.To introduce the newly-discovered creatures. |
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A.She gives them to her child to play with. |
B.She treats them as dolls. |
C.She makes useful tools from them. |
D.She treats them as weapons. |
A.Sex difference. | B.Socialization. |
C.Environment. | D.Cultural difference. |
A.socialization has nothing to do with human’s choice of playthings |
B.sex difference is the only factor in human’s choice of playthings |
C.the biology factor may also influence toy choice |
D.people choose different toys in different cultures |
A.both humans and chimpanzees choose their playthings due to sex difference |
B.different factors cause humans and chimpanzees to choose different playthings |
C.only female chimpanzees have playthings |
D.chimpanzees usually choose playthings for their children |
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A.baby boys are much more active |
B.baby girls like bright colours more |
C.their parents treat them differently |
D.there is a natural difference between them |
A.a(chǎn) ball | B.a(chǎn) teddy | C.a(chǎn) car | D.a(chǎn) doll |
A.Nine-month-old baby boys don’t play with dolls at all. |
B.Two-year-old baby girls sometimes play with cars and balls. |
C.The older the babies are, the more obvious their preference is. |
D.Parents should teach their babies to share each other’s toys. |
A.Adults purposely influence their babies’ preference. |
B.Babies’ preference isn’t affected by social surroundings. |
C.Baby boys preferring to moving toys will be good at hunting. |
D.Baby girls preferring warmer colors will be warm-hearted. |
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A.The absence of blackboard in classroom. |
B.The use of new technologies in teaching. |
C.The lack of practice in handwriting. |
D.The popular use of smartphones. |
A.focused on the difference between writing by hand and on a computer. |
B.indicated that students prefer to write with a pen and paper. |
C.found that good essays are made up of long sentences. |
D.discussed the importance of writing speed. |
A.Spelling improves one’s memory of words. |
B.Spelling ability is closely related to writing ability. |
C.Spelling benefits the translation from words into ideas. |
D.Spelling slows down finding exact words to express ideas. |
A.Window. | B.Soul | C.Picture. | D.Imagination. |
A.Computers can help people with their choice of words. |
B.Spell checks can take the place of spelling teaching. |
C.Handwriting still has a place in today’s classrooms. |
D.Functional spelling ability develops fast in the fifth grade. |
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A.To find the reasons for myopia. |
B.To find the ways to treat myopia. |
C.To prove the bad effects of myopia. |
D.To prove the prevalence of myopia. |
A.Because Sydney children watch less TV. |
B.Because Sydney children have more eye resting time. |
C.Because Sydney children use computers less. |
D.Because Sydney children do more outdoor sports. |
A.Sydney children don’t study hard. |
B.Singapore children do few exercises. |
C.Outdoor activities do more good to eyes. |
D.Room light does harm to children’s eyes. |
A.Children should have eye tests as soon as they reach school age. |
B.Doing outdoor activities with no glasses is good for myopia children. |
C.Focusing on distant objects can help the eyes keep their original shape. |
D.Children should limit their time in the sun in order to protect their eyes. |
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