Listen again to part of the lecture. Then answer the question. Why does the professor say this:

相似题目

• From the middle part to the end of the 18th century, in English literature （） flourished. They were mostly stories of mystery and horror which take place in some haunted or dilapidated middle age castles.

  查看最佳答案

• The steam boiler is part of a closed loop steam, whereby, after the energy of the steam is used up and it becomes water again, （） is collected and returned back to the boiler for heating up again to steam.

  A . the former B . the first C . the latter D . the last

  查看最佳答案

• From the seventh century BC to the 16th century AD, about ______ dynasties built parts of the Great Wall.

  查看最佳答案

• If you want to listen well, you should listen to lots of new materials, and never stick on to one piece of material.

  查看最佳答案

• Not surprisingly, music is a (n) __________habit, and our college students can take themselves wherever they go and they can listen to them over and over again.

  查看最佳答案

• Through more than 2,000 years from the seventh century BC to the 16th century AD, ______ dynasties built parts of the Great Wall.

  查看最佳答案

• was a member of apeople from Scandinavia who attacked parts of northern and western Europe,including Britain and Ireland, in the 8th to 11th centuries.

  查看最佳答案

• We need to ______ the purpose of the experiment again.

  查看最佳答案

• Part I Multiple-choice Directions: Listen to the whole passage and choose the best answer from the four choices marked A, B, C and D. 1. The water is kept liquid by ________.

  查看最佳答案

• Listen to the following sentence and choose the right pronunciation of the underlined word.* Take an apple.

  查看最佳答案

• Th e dog days are the hottest, most uncomfortable part of the Southern Hemisphere summer.

  查看最佳答案

• 1.Part 1 I’m Looking for the Museum.Listen to the conversation and circle the letter of the correct answer.What’s the man looking for?

  查看最佳答案

• Part I Multiple-choice Directions: Listen to the whole passage and choose the best answer from the four choices marked A, B, C and D. 1. Who support(s) Obama most?

  查看最佳答案

• Listen to the video clip again and decide whether the following statements are true or false. 3. Dave is responsible for promoting new products.（）

  查看最佳答案

• -I'm tired of your complaints.-Just listen to me._____

  A．I'm serious B．What a pleasure C．I don't know D．Thanks a lot

  查看最佳答案

• Before a new type of airplane goes into service, every part of it is tested again and again. But there are two tests that are more important than all the others.

  The first is called the "tank test". A modem airplane must fly very high in the sky. Air must be pumped into the plane so that the passengers can breathe. The metal structure (结构) of the plane has to be very strong for this reason. When the plane is filled with air, the air presses against the skin of the plane inside. The pressure (压力) on a small window is like a huge foot that is trying to get out. If a small part of the plane were to fail, the plane would explode in the sky. To test the structure of the plane, the plane is lowered into a huge tank or container of water. Then it is filled with air. The pressure inside the plane is greater than it ever will be when it is high up in the air. Finally, there is an explosion. This does not cause so much damage inside the water tank as it would anywhere else. Engineers can discover which part of the plane has broken. Then that part is made stronger. The most dangerous test happens when the new plane is going through test flights in the air. The test pilot must find out exactly what happens when the engines(发动机) are all shut off at once. The plane begins to fall like a stone. It is the pilot's job to find out how he can get control of the plane again. These two tests are examples of how planes are made safe before they ever carry passengers. By doing the "tank test", the engineers can find out______. A．the amount of air in the plane B．the strength of the plane structure C．the pressure inside and outside the plane D．the power of the airplane engines

  查看最佳答案

• 听力原文：Conversations are really kind of interesting. I guess it's a kind of hobby of mine to listen to conversations that I can hear in public. It is amazing how different the style, or the tone or the content of different conversations can be and to listen to the differences in the language that people use when they speak to different people.

  If you're ever in a bookstore or department store, it's interesting to hear how the same salesperson talks to different people. There're other interesting places to listen to conversations too. I think, and one place that I've found is on bus trips. People often talk to each other as if no one else were there. I guess they think people can't hear their conversations. Recently I was on a bus, and I was listening to a conversation of two people behind me. I can't really say I was listening. I guess it would have been hard not to hear it. it was amusing to listen to the two people, though, because they were playing a kind of language, uh, word game about states and state capitals. One person would say the name of the state, and the other person would say the name of the capital. It sounds like a kind of simple game that doesn't involve much language, and you wouldn't think that it would involve very much conversation, but actually this wasn't the case because they were playing this game. They continued to compliment one another and talk about how much they knew about history and how many of the other things that they could or couldn't remember about those places from their trips or from their reading. It was really kind of fun to listen to them. (30) A．Criticizing others on bus. B．Amusing people in pubic. C．Enjoying talking to people. D．Listening to people's in public.

  查看最佳答案

• When we listen to music,we are easily_____of events in the past.

  A．remembered B．reflected C．memorized D．reminded

  查看最佳答案

• Listen to the news item again and answer the following questions. Then give a brief summary of the news item. What is the goal of the G20 meeting What has the IMF done to its forecast for global economic growth What is the best way for China to get out of the downward pressure What has the governor of China’s central bank hinted in terms of tackling the economic problem Please give a brief summary of the news item. （）

  查看最佳答案

• Listen again to part of the talk．Then answer the question． What does the professor imply about hummingbirds？

  A．They are a source of food for insects and spiders． B．Their diet is not restricted to flower nectar． C．They obtain protein from eating flower seeds． D．Their behavior. cannot be explained scientifically．

  查看最佳答案

• A few years ago it was common to speak of a generation gap between young people and their elders.Parents said that children did not respect and listen to them, while children said that their parents did not understand them at all.What had gone wrong？ Why had the generation gap suddenly appeared？ Actually, the generation gap has been around for a long time.Many people argue that it is built into every part of our society.

  One important cause of the generation gap is the opportunity that young people have to choose their own ways of life.In a more traditional society, when children grow up, they are expected to live in the same area as their parents, to marry people that their parents know and like, and often to continue the family jobs.In our society, young people often travel great distances for their education, move out of the family at an early age, marry or live with people whom their parents have never met, and choose jobs different from those of their parents. In our society, parents often expect their children to do better than they did, to find better jobs, to make more money and to do all the things that they were unable to do.Often, that is another cause of the gap between them.Often, they discover that they have very little in common with each other. Finally, the speed at which changes take place in our society is the third cause of the gap between the generations.In a traditional culture, senior people are valued for their knowledge, but in our society the knowledge of a lifetime may become out of date.The young and the old seem to live in two very different worlds, separated by different skills and abilities.No doubt, the generation gap will continue in American life for some time to come. 1.The first paragraph tells us that ______. A、the problem of the generation gap draws much attention from people B、it is out of date to talk about the generation gap C、children and parents are trying to understand each other D、it is very important for people to frequently communicate with each other 2.In a more traditional society, old people_______. A、have their children respect and listen to them B、do not care for their children at all C、expect their children to rebel against them D、do not live together with their children 3.In American society young people________. A、do not need to find jobs B、leave home at an early age C、have better education than their parents D、marry people younger than them 4.Which of the following is NOT the cause of the generation gap______. A、Young people like to depend more on themselves. B、Parents do not love their children dearly. C、American society changes rapidly. D、Parents expect too much of their children. 5.The main idea of the passage is ________. A、that the generation gap needs considering B、when the generation gap is necessary in American society C、why the generation gap exist D、how we can reduce the generation gap

  查看最佳答案

• Listen again and choose the best answer to each of the following questions. [音频] Which of the following statements is NOT correct when describing Robert？

  A．He has his own idea about his future jo B．He is interested in his parents’ careers． C．He thinks Peter is not old enough to make his own decisions． D．He is interested in the work itself rather than the money he will earn．

  查看最佳答案

• Please listen to me carefully. I won’t _______ what I say again.

  A．relax B． recover C． search D． repeat

  查看最佳答案

• Part 1 I’m Looking for the Museum. Listen to the conversation and circle the letter of the correct answer. Where are the speakers now？

  A．On First Avenue B．On Holly BoulevarD C．At the museum．

  查看最佳答案