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[主观题]

All flights _________ because of the snowstorm,？

All flights _________ because of the snowstorm, many passengers could do nothing but take the train.

A) had been canceled B) have been canceled

C) were canceled D) having been canceled

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发布时间：2020-08-02

更多“All flights _________ because of the snowstorm,？”相关的问题

第1题

BENEFITS OF VIDEO CONFERENCINGAlmost everyone is familiar with video conferencing today,

BENEFITS OF VIDEO CONFERENCING

Almost everyone is familiar with video conferencing today, and for good reasons.Video conferencing is convenient. Video conferencing saves money. Video conferencing makes money. And it is so much easier than it used to be.

Today, of course, video conferencing has become an important means for doing business.There is no longer a need to waste time and money traveling, and the advanced technology can offer what every conferencing needs.Audio, web and video together can provide good solutions for large conferences with Q&A sessionsand private chats.

Why is video conferencing so successful when other technologies have come and gone？ It is because it’s convenient and cost-effective. In addition to saving time and money, video conferencing is a lot less stressful than a meeting after a day of airport security, delayed flights and hotel check-in, etc.

Best of all, video conferencing is not expensive nowadays. Web, video and audio conferencing service providers can quickly get you up and running, often without setup fees or high charges. With all that’s available today, the only question is whether a business can afford not to use user-friendly video conferencing.

1. It’s easy to use video conferencing in the past. {T; F}

2. Video conferencing is a convenient way for doing business. {T; F}

3. Only video can provide good solutions for large conferences with Q&A sessions.{T; F}

4. Compared to some other forms of meetings,video conferencing is muchmore stressful.{T; F}

5. Nowadays if you don’t use video conferencing in some cases, maybe your business will suffer losses to some degree. {T; F}

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第2题

第二节完型填空阅读下面短文，从短文后所给各题的四个选项（A、B、C和D)中选出能填入相应空白处的最

第二节完型填空

阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。

In September, in Britain, you may see a lot of birds 【B1】 on roofs and telegraph wires. These birds are swallows. They are 【B2】 together because, Very soon, they will be flying 【B3】 to much warmer lands, where they will find 【B4】 small flying insects on which they 【B5】 . There are no such insects 【B6】 in Britain during the winter, as it is 【B7】 cold for them.

The swallows settle, fly off, swoop, and 【B8】 again. This they do many times, for they are making short 【B9】 flights in order to be fit for the long journey 【B10】 them.

【B11】 of these migrating birds leave Britain in the autumn. They fly 【B12】 for hundreds of miles 【B13】 they reach the warm lands of Africa. But not all the birds get there, for many of them perish in the stormy weather they meet with 【B14】 .

In the spring of the following year they 【B15】 the long and tiring journey back to Britain. They return to the identical barn or tree in the 【B16】 district which they had left the 【B17】 autumn. How do these birds find their 【B18】 there and back over such vast distances？ Nobody knows exactly 【B19】 , but it has something to do 【B20】 winds and air currents.

【B1】

A．being perched

B．perching

C．being perching

D．be perched

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第3题

（）, more comprehensive meals such as beef, chicken, pork and vegetarian meals are served.

A.On short haul flights lasting up to 2 hours

B.On flights lasting more than 2 hours

C.On international or long haul flights

D.On some special flights

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第4题

Jonnie lives near an airport. As a result, the noise made by flights （）his health badly.

A.effects

B.harms

C.affects

D.pollutes

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第5题

根据材料，回答下列各题： With the unemployment rate topping 8% and the government $16 trill

ion in debt, its easy to question why taxpayers are spending $ 2.5 billion on an SUV- sized Mars rover (探测车) named Curiosity, which landed successfully on the red planet in the early hours of Monday. Couldnt this money go toward something closer to home, such as providing shelter for the homeless or building roads？ Yes, it could. But this kind of thinking is shortsighted. The Mars project is the latest manifestation of Americas restless desire to answer previously unanswerable questions and take on new challenges. To paraphrase President John F. Kennedy, America does things like this not because they are easy, but because they are hard. Getting the probe down safely on Mars, after a 350 million mile journey, was certainly no easy feat. Virtually all the technology used in the approach and landing was new, or used in new ways. Once settled in, Curiosity should be a particularly awe-inspiring project. It is designed to shed light on big questions: Could life forms have ever existed on Mars？ Might they still exist？ And are we alone in the universe ？ When budgets are tight, space projects such as Curiosity come in for particular abuse. They are often portrayed as complicated flights of odd ideas. They are not. They are both inspirational and immensely practical. Technology is, after all, an engine of economic growth. If that is a goal, as well it should be, why not support a program that makes science exciting and showcases some of the most interesting things that. technology can do？ One of the main benefits of projects like this one is to promote a confident America. Throughout history, nations that explore, and engage in science, lead the world. Beginning in the 15th century, for example, European nations sent sailors around the globe and provided the impetus for thinkers such as Copernicus, Galileo and Newton to invent modern physics and astronomy. Not coincidentally, Europe came to dominate the world until the dawn of the 20th century. Those who would slash space program budgets apparently havent learned historys lessons and dont see the great possibilities that the future presents--possibilities reflected in every image transmitted back from the rover. Why is it easy to question why taxpayers money is spent on Curiosity？

A.Because Curiosity costs too much money.

B.Because the economic situation is depressed.

C.Because the money should be spent on the people.

D.Because Curiosity is meaningless and impractical.

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第6题

On short haul flights lasting up to 2 hours, there are simple snacks such as sandwiches, biscuits and（）.

A.nuts

B.beef

C.pork

D.chicken

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第7题

The next decade could see commuters speeding to work at about 300 miles per hour aboard ma

gnetic levitation vehicles, according to a report by Argonne National Laboratories. But before "maglev" vehicles can become commercial successes, the report says, people need to stop thinking of them as high-speed trains. Instead, consider them low-flying aircraft. Argonne contends that maglev vehicles will be best suited to replace commuter aircraft. Plane flights under 600 miles are the least energy-efficient, and maglev "planes" should cut these fuel needs by up to 75 percent. Reportedly, the money saved by a 2,000-mile maglev network linking major cities world more than pay for its construction in 20 years. The quiet purr of levitating crafts would also be a balm for neighborhoods tormented by the roar of conventional takeoffs and landings. The technology behind magnetic levitation is already well understood, the report notes. The West Germans and the Japanese already well understood, the report notes. The West Germans and the Japanese have several full-scale working models. Meanwhile, research in the United States has lapsed.

What is the best title for this passage？

A．The Future of Transportation

B．Argonne Develops Maglev Train

C．The Disadvantages of Commuting by Airplane

D．Commuting in the Future

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第8题

He has all kinds_books.

A.of

B.in

C.on

D.to