We eventually ran out of patience with his ________ behaviour.
A.child
B.childish
C.childy
D.childlike
A.child
B.childish
C.childy
D.childlike
第1题
A.childish
B.childlike
C.child
D.childy
第2题
A.A. Y ou know , we haven' t gotten together in ages.
B.B. That' s OK. I've been busy lately , too.
C.C. Let's go for a walk.
第3题
A.A.amend
B.B.amendment
C.C.amending
D.D.to amend
第4题
We managed to deal with the situation before it__________ .
A.tightened up
B.got out of control
C.lit up
D.caught on
第5题
A. unfortunately
B. eventually
C. generously
D. purposefully
第6题
We can learn from the passage that______.
A.the cows often ran out to look for food
B.the cows often had fights with their masters
C.Mr. Jones and his men often beat the cows
D.Mr. Jones and his men often forgot to feed the cows
第7题
第8题
Lester: Well, we can move in any time after July first, but moving in and actually getting started are two different things.
Wendy: Good point.Anyway, I have our new marketing manager, Helen Parker, helping us set up.
Lester: What is she doing?
Wendy: She's overseeing the purchase of equipment and so forth.
Lcster: Does she have a background in that sort of thing?
Wendy: As a matter of fact, it turns out she practically ran her last company , from marketing to finance.
Lester: I'm looking forward to meeting her.
Wendy: Have you begun to investigate factories? I'm so glad we aren't going to try to run our own factory at first.
Lester: Yes, I've started.And I've found some good people for R and D, too.Then there are the art people designing our logos.
Wendy: Oh, no ! Millions of details: logos, slogans, letterhead, name cards…
Lester: You thought setting up a company was going to be easy?
第9题
What does Paragraph 3 mainly discuss?
A.The direction for future research.
B.The necessity of running more tests.
C.The difficulty of testing the theories.
D.The cost of animal experiments.
第10题
根据下面内容,回答题:
Many of the problems we face today are not so new as we think they are. And some of our modern solutions are not so new, either. The problem of energy shortages and the solution of using solar energy go back at least to early Greek cultures. The climate in the coastal areas of Greece 2,500 years ago was characterized by cool winters, much as it is today. At that time, the Greeks heated their homes with small, charcoal-burning heaters. In other words, wood (which is used to make charcoal) was their primary source of energy.However, by the fifth century BC fuel shortages had become common because, in many parts of Greece, the firewood in the forests had been depleted. Once the supply of firewood from the local forests ran out, people began to use the wood from olive groves as fuel. But this solution had its own problem. It reduced the olive crop, a valuable resource to the Greeks. By the fourth century BC, the city of Athens banned the use of olive wood for fuel. Wood had to be imported from farther and farther away, making it more difficult to obtain and more expensive to use. About this time the Greeks began to build their houses facing south, so that the low sun in winter could penetrate and help heat the interiors. Excavations of ancient Greek cities suggest that large areas were planned so that individual homes could take maximum advantage of passive solar energy.
The word "depleted" means________. 查看材料
A.damaged
B.stolen
C.used up
D.discovered
第11题
将英语短文译为中文
3 Self-Powered Nanotech (10分)
Nanosize machines need still tinier power plants
By Zhong Lin Wang
The watchmaker in the 1920s who devised the self-winding wristwatch was on to a great idea: mechanically harvesting energy from the wearer’s moving arm and putting it to work rewinding the watch spring.
Today we are beginning to create extremely small energy harvesters that can supply electrical power to the tiny world of nanoscale devices, where things are measured in billionths of a meter. We call these power plants nanogenerators. The ability to make power on a minuscule scale allows us to think of implantable biosensors that can continuously monitor a patient’s blood glucose level, or autonomous strain sensors for structures such as bridges, or environmental sensors for detecting toxins — all running without the need for replacement batteries. Energy sources are desperately needed for nanorobotics, microelectromechanical systems (MEMS), homeland security and even portable personal electronics. It is hard to imagine all the uses such infinitesimal generators may eventually find.
In Brief
★Nanotechnology has huge potential — but those minuscule devices will need a power source that is better than a battery.
★ Waste energy, in the form. of vibrations or even the human pulse, could provide sufficient power to run such tiny gadgets.
★ Arrays of piezoelectric nanowires could capture and transmit that waste energy to nanodevices.
★ Medical devices will likely be a major application. A pacemaker’s battery could be charged so it would not need replacing, or implanted wireless nanosensors could monitor blood glucose for diabetics.