题目内容

【题目】______students in this school is about 2,000.And______students take the bus to school.

A. The number of. the number of B. A number of, a number of C. The number of, a number of

【答案】C

【解析】

句意:这个学校里学生的人数大约是2,000,很多学生乘坐公交车去上学。the number of表示“的数量”,在句中作主语时,谓语动词用单数;a number of表示“许多”,修饰可数名词复数,在句中作主语时,谓语动词用复数。根据句意可知应选C

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Do you know how long it’s been since mobile phones were first invented? On April 3, exactly 42 years ago, the first public call ________ (make) from a handheld wireless phone.

Martin Cooper, a US researcher at Motorola, made the call from a corner in New York City in 1973.

People were very surprised at the phone, Cooper remembered. "We caused a great stir," he said.

The phone was a big thing by today’s standards—it weighed almost 1 kilogram and was about 25 cm long. Now, mobile phones fit into the palm(手掌) of your hand and weigh a little more than a lemon.

But back then, it was a huge advancement, especially when compared with the car mobile phones that had been in use since the 1940s.

A car phone weighed more than 13 kilograms and cost thousands of dollars. An owner had to drill() a hole in the car just to fix it.

At that time, Cooper was competing with Joel Engel, the head of research at a rival wireless communications company. So, he made the first call to him.

"I told him, ‘Joel, I’m calling you from a real cellphone’," said Cooper. "I thought I heard gnashing of teeth(咬牙切齿) at the other end, but he was polite."

Since that first call, billions of people around the world have owned mobiles.

Today, they are multifunctional(多功能的) with more and more features(特征), like short text messages, cameras and MP3 players. And people can also use them to get online.

However, Cooper still believes the "original dream" of a true mobile phone call is not yet a reality. That is: being able to use a phone to call anyone from anywhere. Cooper’s dream phone is so small that it fits behind his ear and automatically(自动地) dials out when he thinks about calling someone. And when there is an incoming call, it tickles(使发痒) instead of ringing.

1请根据短文,选出画线单词advancement的意思 ________________

A. progress B. surprise

2How did people feel after the first call from a handheld wireless phone?

_______________________________________________________

3请用括号内所给单词的适当形式填空:______________________________________________________

4What can the mobile phone be used for according to the passage?

______________________________________________

5How much did a car phone weigh?

_____________________________________________________________

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