题干

假如你是李华,最近你们班进行了有关“克隆”的讨论。有人赞成克隆,有人反对。请你根据你们讨论的情况给Smith博士写封信,并表达自己的见解。
注意:1.词数100左右;2.开头和结尾已经给出,但不计入总词数。
Dear Dr. Smith,

I'm Li Hua. Recently we had a discussion _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Best wishes!

Yours sincerely,

Li Hua

上一题 下一题 0.99难度 提纲类作文 更新时间:2019-07-13 02:43:30

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同类题2

   From Japan to Detroit, automobile manufacturers have been busy creating the green car, a vehicle that, in all its forms, promises to be one of the cleanest technologies on earth. To create the green car of the future, say designers, they will replace dangerous substances with safe ones, recycle car parts from antifreeze to old tires and develop alternative fuels.

To meet high environmental standards, automakers began renovating(翻新)their practices at the heart of the matter: the manufacturing process.

At General Motors(GM)a two-seat electric car named the Impact can travel 110 to 160 kilometers on a single charge, depending on driving habits and conditions. GM will begin the consumer test to the Impact in 12 U. S. cities this year. About a thousand people have been selected to drive the vehicle for two-and four-week periods.

Meanwhile, another alternative to standard gasoline-powered cars is Volkswagen’s Golf Ecomatic, recently introduced in Europe and powered by a diesel(柴油)engine that shuts down automatically whenever the car doesn’t require the force of push — while drivers are waiting at traffic lights, slowing to a standstill in heavy traffic or driving downhill. In city traffic alone, Volkswagen engineers expect 60 percent of the trip is spent either moving without its engine turned on or waiting, and overall the carbon dioxide emissions(排放物)produced by the Golf Ecomatic are 22 percent less than those of a standard diesel-powered automobile.

In the end, the green car will be good not only for the environment but also for business. In the long run environmental success is essential to business success, and many companies have recognized this reality, as a growing number of people want to purchase products from environmentally responsible firms.

【小题1】What is the main purpose of automakers worldwide designing the green car?
A.To increase the efficiency of fuels now in use.
B.To solve the problem of the ever-worsening fuel shortage.
C.To meet high environmental standards.
D.To clear the world of waste car parts.
【小题2】Which of the following is the chief advantage of Golf Ecomatic?
A.It shortens waiting time in the street.
B.It reduces carbon dioxide emissions.
C.It cuts down on the consumption of diesel.
D.It ensures the quality of being pollution-free.
【小题3】What can we learn from the last paragraph?
A.Automakers have come to see the advantage of making green cars.
B.Environmental protection should not be achieved at the risk of business failure.
C.Automakers may lose much in the production of green cars.
D.The general public are all eager to use the green car.
【小题4】What is the main purpose of the passage?
A.To educate people on environmental protection.
B.To list the advantages of green cars over traditional ones.
C.To explain the process of developing green cars.
D.To inform people of the development of green cars.

同类题3

Safety is a huge concern whenever I run with my earphones in. But I need music to run. Otherwise all I hear is the sound of my own breathing. So I’ve found a compromise: I run with only one earphone in. The music sounds off. It’s an imperfect solution.
An updated pair of headphones, called AfterShokz, aim to do better. AfterShokz bills itself as using bone conducting technology to conduct music from the front of the ear, delivering sound through your cheekbone and inner ear. This keeps your eardrum (鼓膜) free to hear everything else.
“Earbuds (耳塞式耳机) are typically designed to block out all sound, which is fine when you’re inside. But when you’re outside, you need all your senses. It would be like sending you out cycling with a blindfold on,” says Rod Annet, managing director of AfterShokz.
Here’s where AfterShokz comes in. The headphones hook over the back of your head with the main “bud” resting high up against your cheek. This keeps your ear free to delight in other sounds.
So do they work? In a word, yes. During a 45-minute jog, they didn’t bounce or shift. I heard far more of my environment than I normally do: a nearby bike there; a runner passing me again to my left; and so forth.
What about the downsides? If you’re a huge fan of high-quality sound, you might find the headphones a bit tinny. One friend expressed concerns about missing the ability to get lost in the music as you might be distracted by other noises, although I personally didn’t find that an issue.
Yet those are all minor details. For me, probably the biggest problem is the price. Ranging between £ 49.96 to £ 83.29, AfterShokz headphones aren’t exactly cheap.
With all that considered, would I recommend them? Yes. AfterShokz headphones are quite useful. While out jogging, they were light, painless, and easy to use. They made me feel safer.
【小题1】What is special about AfterShokz headphones?
A.They are a good choice for inside use.
B.They allow users to hear other sounds.
C.They can make music sound more beautiful.
D.They can deliver sound through your eardrum.
【小题2】What does the author’s friend think of AfterShokz headphones?
A.They prevent users getting lost.
B.They deliver high—quality sound.
C.They often move while users are running.
D.They fail to allow users to enjoy the music.
【小题3】The author thinks AfterShokz headphones .
A.are too expensiveB.seem quite useless
C.make users feel painD.are too complex to use
【小题4】What is the main purpose of the text?
A.To express worries.B.To introduce a product.
C.To share a personal story.D.To complain about a product.

同类题4

   A start-up company in California, called Zume, is testing machines that make pizza. The robot takes and shapes dough to create the base of the pizza. It then adds tomato sauce, cheese, meat or other toppings. Next, the robot places the uncooked pizza into a hot oven. A few minutes later, the pizza is ready. The pizza comes out the same each time. Zume says the robots work quickly and do not get sick. The robots do not get paid either.

Julia Collins is the company’s founder and chief executive officer (CEO) . Her business can spend money on better food products because it does not have to pay the robots. Zume is using robots to make pizza.

Charity Suzuki has bought the robot-made pizza. She likes its taste. “It’s delicious. It’s always hot and fresh when it comes. I mean it’s great that they’re making it, but I can’t tell the difference that it’s made by a robot versus a human.”

Other companies say they are developing robots so people can get higher quality food faster. But what about the jobs the robots are taking from humans?

Ken Goldberg is a professor at the University of California in Berkeley. He also directs the school’s automation laboratory. Goldberg says researchers have been working with robots for 50 years. He says that, while there has been progress, the jobs are not going to disappear right away. “I want to reassure (使放心) restaurant workers that the skills that they have are still going to be of value,” Goldberg said.

“We’re going to get rid of boring, repetitive, dangerous jobs and we’re going to free up people to do things that have higher value. There’s going to be amazing new ways of working that don’t exist yet but are going to be created.”

【小题1】Why can Zume devote more money to better food products?
A.It earns a lot by selling pizza.B.It wants to create more robots.
C.It can save a lot by using robots.D.It hopes to attract more customers.
【小题2】What can we know about the robot-made pizza according to Suzuki?
A.It really agrees with her.B.It is hot and fresh all the time.
C.It is tastier than the man-made.D.It is delicious and free of charge.
【小题3】What’s the benefit of robots’ making pizza?
A.They work efficiently.B.They help sick people.
C.They need few payments.D.They produce more food.
【小题4】What does Goldberg think of the jobs of restaurant workers?
A.Interesting.B.Boring.
C.Dangerous.D.Necessary.

同类题5

   Self-driving cars are so popular that the University of Michigan has even established a town called Mcity to allow car manufacturers to safely test their autonomous cars.

While Mcity can be used to simulate(模拟)many real-life road conditions,it can't help test gestures drivers use to communicate their intention(意图)to other drivers,pedestrians or cyclists. To find a solution,US car manufacturer Ford,with researchers from Virginia Tech,at the beginning considered using text as a way to communicate the car's intention,but decided it would probably not work universally. The option of using symbols was also rejected,because research shows that a majority of people do not have a good understanding of what they mean.

Finally, the researchers settled on light signals. A white light warned that there were no humans in the car. A slow blinking one indicated that the car was coming to a stop, while a rapidly flashing light cautioned passersby that the car was about to speed up.

Then came the big challenge—testing the signals on real roads. "We needed to try out this new lighting to communicate the intention of the vehicle, but if you've got a driver behind the seat, you still have natural communication between humans," said Andy Shaudt, who led the research team. "So we needed to make it look like a driverless car."

The team designed a car seat costume(戏装)that the driver would wear to cover his or her face and upper body. Of course,the drivers could see very clearly. The researchers then equipped the car with cameras to capture human reactions to a light bar,which flashed one of the three signals when appropriate. Six drivers,all keeping their hands low on the wheel so as not to be noticed,took turns to test driving the car through the busy streets.

The overall reaction to the flashing lights was very encouraging. Who knew costumes could be useful for more than Halloween?

【小题1】What did the team first consider using as a way to communicate the car's intention?
A.Light.B.Language.
C.Symbols.D.Sound.
【小题2】The underlined word "they" in the second paragraph refers to ________.
A.symbolsB.drivers
C.researchersD.flashes
【小题3】What does a rapidly flashing light mean?
A.The car was coming to a stop.
B.There was no driver in the car.
C.The car was about to speed up.
D.The car was about to slow down.
【小题4】The car seat costume was intended to ________.
A.amuse the driverB.attract the pedestrians
C.warn the cyclistsD.confuse the people