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3

   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

同类题4

   James T. Green thought he was having a panic attack.

He took a break from work to walk around the block during a stressful day, and noticed he felt out of breath climbing up a small hill. That wasn’t normal, Green thought. He had become a regular biker in recent months and wasn’t exactly out of shape. He sat down at his desk, and looked at the Apple Watch on his wrist. His heart rate was through the roof, and the Heart Watch app he was using to check his pulse was flashing warnings. Maybe it was something more serious, he thought.

Although he had blood clots(血栓)in his lungs a few years back, he had been taking medication, and doctors said that it was an unusual condition for someone in their mid-20s. Still, the symptoms this time were much less severe, and he was feeling stressed, so his mind didn’t automatically jump to blood clots. Green’s doctor told him it sounded like anxiety. But then he showed her his heart rate recorded by the Apple Watch.

“This is my normal heart rate,” Green told her, pointing to the graph in the app. “This is where my heart is now. There’s something wrong.”

The doctor ordered a CT scan. The blood clots in his left lung had returned. An ambulance rushed Green to the emergency room, where he was pumped full of blood thinners(血液稀释剂). He didn’t need surgery this time, but doctors told him that if he had waited, a clot could have killed him.

Green isn’t the only person who has discovered a serious health condition after seeing heart-rate data on a smartwatch. And he won’t be the last. Currently, smartwatches from Apple and others can tell you your heart rate and track your workouts. But these companies want to go beyond the basics by developing ways to tell you when something is wrong. In fact, it’s already happening.

【小题1】What is abnormal for Green this time?
A.He was hurt badly.
B.He breathed heavily.
C.He was out of shape.
D.He decreased physical activity.
【小题2】What really caused the severe symptoms of Green this time?
A.Tiredness.B.Anxiety.
C.Work stress.D.Blood clots.
【小题3】Which of the following confirmed his extremely serious problem?
A.He himself.B.His doctor.
C.The Apple Watch.D.The CT scan.
【小题4】What is the following paragraph going to talk about?
A.Smartwatches can help people in all aspects of life.
B.Smartwatches will replace doctors.
C.Other uses in health of smartwatches.
D.Other cases in saving lives by smartwatches.