A.20 km northwest of it | B.20 km northwest of which |
C.northwest 20 km to it | D.northwest 20 km of which |
A.On account of | B.In spite of | C.In terms of | D.By means of |
A.apply | B.appeal | C.attach | D.adapt |
A.has worked | B.had worked | C.worked | D.has been working |
A.intended | B.intending | C.being intended | D.do intend |
A.others | B.either | C.another | D.both |
A.was doing | B.am doing | C.have done | D.had been doing |
A.不填;a | B.a; the | C.the;不填 | D.the;a |
A.break | B.breaking | C.broken | D.to break |
A.in whom | B.in them | C.of whom | D.of them |
A.unless | B.until | C.once | D.if |
A.where | B.whether | C.that | D.why |
A.can | B.may | C.must | D.should |
A.put off | B.speed up | C.turn on | D.work out |
A.as few as | B.as little as | C.as many as | D.she has noticed |
A.did she notice | B.she notice | C.does she notice | D.she has noticed |
A.deny | B.refuse | C.reject | D.decline |
A.anyhow | B.otherwise | C.therefore | D.somehow |
A.these | B.them | C.those | D.ones |
A.That’s the most I could do | B.I’m glad to have been of help |
C.No problem | D.With pleasure |
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A.who developed the device |
B.how the device works |
C.several possible uses for the devices |
D.how much electricity the device can produce |
A.It is too heavy for the walker to bear |
B.It is too complex for people to use |
C.It is too expensive for most people to afford |
D.It will slow down one’s walking speed |
A.produces power without adding more loads to the walker |
B.can produce more power in a much shorter time |
C.needs to be equipped with a battery |
D.can help the walker walk faster |
A.help housewives operate the washing machine |
B.make it much easier for us to go online |
C.produce more electricity than that invented by Larry Rome |
D.be applied in medical fields to operate heart pacemakers |
A.First device powered by walking will soon be on the market |
B.Advanced technology brings in a new way to operate heart pacemakers |
C.Device gives new meaning to the idea of power walking |
D.Human energy will become a main source of electricity |
A.To advocate eating more raw and whole foods |
B.To tell the differences between raw and processed foods |
C.To inform people of the harm of processed foods |
D.To warn people of the problem of obesity |
A.it is essential for people to protect their vital organs |
B.foods with natural enzymes help people keep fit |
C.we’d better be cautious about raw and whole foods |
D.giving up cooked and refined foods is a new lifestyle |
A.destroy body’s cells | B.are difficult to digest |
C.may lead to obesity | D.stop body’s metabolism |
A.Active approaches to avoid acid . |
B.Different causes of acid accumulation. |
C.Correct ways to cook raw foods . |
D.Suitable types of raw and whole foods. |
A.Processed foods are good for our appetite mechanism |
B.Eating the right types of raw and whole foods does good to our body |
C.The accumulation of acid in the digestive tract makes digestion more effective |
D.Processed foods also comfort the digestive tract |
A.There exists thousands of species of animals in the world. |
B.Man came to establish a close relationship with a number of animals. |
C.In some regions a donkey seems to be a very useful beast. |
D.An animal will be useless unless domesticated. |
A.refuse to obey its master |
B.immediately fall ill |
C.require its master to offer some food |
D.seek for food on its own |
A.They can act as friends, guards ,and servants to man. |
B.They have great adaptation for the environment. |
C.There live a great variety of species of dogs on the globe. |
D.The Husky and the Saluki are the strongest species ever known in the world |
A.not to hesitate to spend enormous amount of money on it |
B.to pay attention to its proper feeding |
C.not to allow it to take excessive amounts of exercise |
D.to join some sort of pet-keeping organizations |
A.Domesticated Animals-Man’s Best Friends |
B.Proper Diet- the Road to Health |
C.The Advantages of Raising Domestic Animals |
D.Some Tips on Pet- keeping |
A.full of ambition | B.self-disciplined | C.full of enthusiasm | D.knowledgeable |
A.lost his hearing when he was a child |
B.didn’t like his brothers and sisters |
C.was interested in flowers and insects in his childhood |
D.was born to a naturalist’s family |
A.just reads about other people’s observations and discoveries |
B.lacks some of the qualities required of scientist |
C.has a great deal of trouble doing mental arithmetic |
D.comes up with solutions in most natural ways. |
A.He didn’t live very long with them |
B.He was too young when he lived with them |
C.The family was extremely large |
D.He was fully occupied with observing nature |
A.The author believes that a born naturalist cannot be a scientist |
B.The author read a lot of books about the natural world and oil industry |
C.The author’s brothers and sisters were good at music and languages |
D.The author spent a lot of time working on riddles. |
A.at the age of 13 | B.before she got married |
C.before the writer’s family moved away | D.after they moved to new homes |
A.got married | B.had little time to do so |
C.didn’t like writing letters | D.could see each other on special times |
A.was in trouble | B.didn’t know Linda’s address |
C.received the card that she sent | D.didn’t have a friend like Linda |
A.read the newspaper |
B.heard Linda’s voice on the phone |
C.met a young woman who looked a lot like Linda |
D.wrote to the woman whose last name was Wangman |
A.for about 40 years | B.for about 27 years |
C.since they got married | D.since the writer’s family moved away |