题目内容

Do you have any online classes? It is possible to take classes at home. All you need is a computer and a headset.

However, most students don't seem to like online classes. According to a recent survey, only 33 percent of students would take such classes. Over 1,500 students from 10 cities took the survey.

Many students said it is hard to focus on studying while taking online classes. This was true for Lian Ruohan, 15, at the Affiliated High School of Peking University. “There are no classmates, no real teachers watching me. I can surf the internet or do other things if I want to. It's harder to always stay focused," she said.

Lian prepares a lot before taking her classes to make sure she will pay attention. She also pushes herself to communicate with teachers. Students can come up with or answer questions while taking online classes.

But Wen Jiayi, 14, at the Yucai Middle School Attached to Chengdu No 7 High School, thinks online interaction (互动)isn't enough.“The online teachers don't really get to know me. When I don't hand in homework, all I get is a short message instead of real concern (关心),” she said.

However, online classes still have other advantages.“It saves time and money compared to taking offline classes. Also, if I don't understand some parts of a lesson, I can watch it over again," Lian said.

1.How many students would take online classes according the survey?

A.About 400. B.About 500. C.About 600. D.About 700.

2.Which of the following is Lian Ruohan’s opinion on online classes?

A.There are both advantages and disadvantages.

B.The advantages are more than disadvantages.

C.She can learn more through online classes.

D.Online interaction isn't enough.

3.The underlined word “ focus” means________in Chinese.

A.走神儿 B.集中精力 C.理解 D.厌烦

4.What’s Wen Jiayi’s problem in taking online classes?

A.She can’t follow the teachers.

B.The teachers can’t answer her problems.

C.The teachers online care less than offline.

D.She can’t finish her homework in time.

5.What’s this passage about?

A.The writer’s view on online classes.

B.A survey about online classes.

C.The future development of online classes.

D.How to take online classes.

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We live in a society that is producing and using electronics(电子产品) all the time. What happy to your computers, MP3 players and cell phones when they’re broken or you want a new one?

Most people just throw them away. In 2016, people around the world produced 41.8 million tons of electronic waste (e-waste,电子垃圾) and only recycled 6.5 million tons, according to the United Nations last month. The US was the biggest waster, producing 7.1 million tons. China ranked second, with 6 million tons.

(A)It’s important to pay attention to e-waste. It can either be valuable or harmful, depending on how we treat it.

To help reduce e-waste, the first thing we can do is to buy longer lasting electronic equipment. If you have unwanted electronic such as aging toys or cell phones, find a new home for them by giving them to charities. (B)You can also take computers and phones to see if companies offer recycling programs. Apple, for example, now offers people a discount(折扣) in China if they hand in their used devices when buying new ones. The company will test and repair the used ones and sell (C)them at lower prices.

1.根据短文内容回答问题。

Which country produced most e-waste in 2016?

______________________________________________________

2.将(A)处画线句子翻译成汉语。

______________________________________________________

3.将(B)处画线句子进行同义句转换。(每空一词)

You can also take computers and phones to the producers to see if they offer recycling programs.

Computers and phones can_________ ________o the producers to see if they offer recycling programs.

4.写出(C)出画线单词“them”指代 _____________。(请用英文回答)

5.针对如何减少电子垃圾,请你用英语再给出一条建议。

______________________________________________________

Bob Christiansen, who studied the volcanic history of Yellowstone National Park in the 1960s, became puzzled about something that, oddly, had not troubled anyone before: he couldn’t find the park’s volcano. It had been known for a long time that Yellowstone was volcanic in nature—that’s the reason for all its hot springs and other steamy features. But Christiansen couldn’t find the Yellowstone volcano anywhere.

Most of us, when we talk about volcanoes, think of the classic cone (圆锥体) shapes of a Fuji or Kilimanjaro,which are created when erupting magma(岩浆) piles up. These can form remarkably quickly. In 1943, a Mexican farmer was surprised to see smoke rising from a small part of his land. In one week he was the confused owner of a cone five hundred feet high. Within two years it had topped out at almost fourteen hundred feet and was more than half a mile across. Altogether there are some ten thousand of these volcanoes on Earth, all but a few hundred of them extinct. There is, however, a second less known type of volcano that doesn’t involve mountain building. These are volcanoes so explosive that they burst open in a single big crack, leaving behind a vast hole, the caldera(火山喷口). Yellowstone obviously was of this second type, but Christiansen couldn’t find the caldera anywhere.

Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone. A thoughtful official passed on some of the copies to the park authorities and said that they might make a nice blow-up for one of the visitors’centers. As soon as Christiansen saw the photos, he realized why he had failed to spot the caldera: almost the whole park-2.2 million acres—was caldera. The explosion had left a hole more than forty miles across—much too huge to be seen from anywhere at ground level. At some time in the past Yellowstone must have blown up with a violence far beyond the scale of anything known to humans.

1.What puzzled Christiansen when he was studying Yellowstone?

2.Is Fuji or Kilimanjaro created when erupting magma piles up?

3.What does the second paragraph mainly talk about?

4.When did Christiansen realize why he had failed to spot the caldera?

5.What was the caldera of Yellowstone?

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