阅读理解 The plan: turn Mars into a blue world with streams and green fields, and
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阅读理解 |
The plan: turn Mars into a blue world with streams and green fields, and then fill it with creatures from the earth. This idea may sound like something from a science fiction, but it is actually being taken seriously by many researchers. This suggests the future for the "red planet" will be the main topic for discussion at an international conference hosted by NASA this Week. Leading researchers as well as science fiction writers will attend the event. It comes as NASA(美国宇航局) is preparing a multi-billion-dollar Mars research programme. "Turning Mars into a little earth has long been a topic in science fiction," said Dr. Michael Meyer, NAS A"s senior scientist. "Now, with scientists exploring the reality, we can ask what are the real possibilities of changing Mars." Most scientists agree that Mars could be turned into a little earth, although much time and money would be needed to achieve this goal. But many experts are shocked by the idea. "We are destroying our own world at an unbelievable speed and now we are talking about ruining another planet," said Paul Murdin from the Institute of Astronomy, Cambridge, UK. Over the past months, scientists have become increasingly confident they will find Martian life forms. Europe and America"s robot explorers have found the proof that water, mixed with soil, exists in large amounts on the planet. In addition, two different groups of scientists announced on March 28 that they had found signs of methane(甲烷) in the Martian atmosphere, the gas is a waste product of living creatures and could be produced by microbes(微生物)living in the red planet"s soil. But scientists such as Dr. Lisa Pratt, a biologist at Indiana University, say that these microbes will be put in danger by the little earth project. "Before we have even discovered if there is life on Mars, we are talking about carrying out projects that would destroy all these native life forms, all the strange microbes that we hope to find buried in the soil," said Dr. Pratt. Monica Grady, a planetary scientist at the Natural History Museum, London, shares this view. "We cannot risk starting a global experiment that would wipe out the precious information we are looking for," she said. "This is just wrong".
1. A plan for changing the present state of Mars_________.
A. has been made B. will be put into practice C. has been given up D. is being argued about
2. According to the passage, besides scientists, _____are also interested in the future of Mars.
A. the public B. science fiction writers C. the governments of many countries D. news reporters
3. The signs of methane in the Martian atmosphere greatly support the view that _______
on Mars. A. microbes may exist B. there may be aliens C. water exists D. there is soil
4. Those who are against the plan are worried that it will ________________.
A. turn Mars into a little earth B. not be carried out C. bring destruction to the planet just as what has happened on the earth D. cost too much time and money
5. Which of the headlines is the fittest for the passage?
A. Mars Programme-a Disastrous Plan B. Mars Programme- Each Scientist Has His Own Way C. Mars Programme-Rising Before Us D. Mars Programme-Challenge to Mankind |
答案
1-5: DBACB |
举一反三
阅读理解 Leading investors have joined the growing chorus of concern about governments and companies rushing into producing biofuels as a solution for global warming, saying that many involved in the sector could be jeopardizing future profits if they do not consider the longterm impact of what they are doing carefully. It is essential to build sustainability criteria into the supply chain of any green fuel project in order to ensure that there is no adverse effect on the surrounding environment and social structures.The report produced by the investors expresses concern that many companies may not be fully aware of the potential pitfalls in the biofuel sector. Production of corn and soya beans has increased dramatically in the last years as an ecofriendly alternative to fossil fuels but environmental and human rights campaigners are worried that this will lead to destruction of rain forests.Food prices could also go up as there is increased competition for crops as both foodstuffs and sources of fuel.Last week, the UN warned that biofuels could have dangerous side effects and said that steps need to be taken to make sure that land converted to grow biofuels does not damage the environment or cause civil unrest.There is already great concern about palm oil, which is used in many foods in addition to being an important biofuel, as rain forests are being cleared in some countries and people driven from their homes to create palm oil plantations. An analyst and author of the investors"report says that biofuels are not a cure for climate change but they can play their part as long as governments and companies manage the social and enviromental impacts thoroughly.There should also be greater measures taken to increase efficiency and to reduce demand. 1. What is the best title of this passage? A. Worries about Global Warming B. Our World Is Going Green C. Biofuel and Environment D. New Energy Resource-Biofuels 2. In the first paragraph there is a concern that________. A. biofuel industry isn"t booming B. the quality of biofuels hasn"t improved C. biofuels aren"t a way for global warming D. biofuel producers may get less reward 3. As is suggested in the passage, some measures should he taken to________. A. keep biofuel industry developing soundly B. prevent biofuel industry developing slowly C. make people realize climate change |
阅读下面的短文,并根据短文后的要求答题。(请注意问题后的字数要求) |
[1]Perhaps you are an average student with average intelligence.However,you can receive better grades if you want.Yes,even students with average intelligence can be top students without additional work.Here’s how: [2]Plan your time carefully.Make a list of your weekly tasks.Then make a schedule of your time.Be sure to set aside enough time to complete your normal reading and work assignments.Of course,studying shouldn’t occupy all of the free time on the schedule. [3]Make good use of your time in class.Listening to what the teacher says in class means less work later. Take notes to help you remember what the teacher says. [4]Skim before you read.Look over a passage quickly before you begin to read it more carefully.As you preview the material,you get some idea of the content and how it is organized.Later when you begin to read you will recognize less important material and you may skip some of these portions.Skimming helps double your reading speed and improve you comprehension as well. [5]_____,Go over your notes as soon as you can after class.Review important points mentioned in class as well as points you remain confused.If you know what the teacher will discuss the next day,skim and read that material,too.If you review your notes and textbook regularly,the material will become more meaningful and you will remember it longer.Regular review leads to improved performance on tests. [6]Develop a good attitude towards tests.The purpose of a test is to show what you have learned about a subject.The word won’t end if you don’t pass a test,so don’t worry excessively about a single test. [7]There are other techniques that might help you with your studying.Improving your studying habits will improve your grades.
1.What’s the main idea of the passage?(no more than 8 words) ____________________________________________________________________ 2.What should you do if you fail a test?(no more than 4 words) ____________________________________________________________________ 3.Please fill in the blank in the fifth paragraph with proper words.(no more than 4 words) ____________________________________________________________________ 4.According to the passage,how can an average student improve his/her grades?(no more than 6 words) ____________________________________________________________________ 5.What does the word “it”(line 4,paragraph 5)probably refer to?(no more than 3 words) ____________________________________________________________________ |
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The Scientific Method Did you ever wonder why the water level in a glass doesn"t change when the ice in the glass melts (融化)? To find out why, you can use the scientific method. Used by scientists in various situations, the scientific method is also a clear and logical way to solve many real-world problems, as the procedure below indicates.
Steps in the Scientific Method | Examples | State the problem or question. | "Why doesn"t the water level in a glass rise when ice melts?" | Collect information about the problem, using your own observations and research. | You already know that ice is frozen water. From your research, you learn that water and ice are made of water molecules (分子). | "Form a hypothesis, or a best guess based on the information." | The molecules in water appear to be closer together than they are in ice. | Test the hypothesis by doing an experiment. | Fill four glasses with ice. Then pour water over the ice and fill each glass to the rim. As the ice melts, you observe that the water does not spill over the top of the glasses. Each time you repeat the experiment, you get the same results. | Draw a conclusion based on your results. | Molecules are closer together in water than they are in ice. | 阅读理解 | A volcanic eruption(喷发) in Iceland has sent ash across northern Europe. Airlines have stopped or changed the flights across the Atlantic Ocean, leaving hundreds of passengers stuck in the airports. Grimsvotn is one of the largest and most active volcanoes in Europe. What makes Grimsvotn different is that it lies under a huge glacier(冰川) of ice up to 12 meters thick. The hot volcano heats up the ice above it, which then forms a layer(层) of water between the glacier and the volcano. This layer of water puts pressure on the volcano, keeping it stable(稳定). As the water flows out from under the glacier, the pressure lifts. The lava(岩浆) from the volcano then comes up to the surface. This is exactly what happened today. Now, airlines have to make changes to their flights so as not to fly through the clouds of volcanic ash. According to KLM one of Europe" s biggest airlines, airplanes cannot go under the cloud or over it. Going through the cloud can result in ash getting stuck in the airplane" s engines, causing damage to the plane. The eruption has also caused problems for animals in Iceland. The volcano left ash and sharp glass-like rocks all over the countryside. Farmers are keeping their animals inside to stop them from eating ash-covered glass or the sharp object.
1. What makes Grimsvotn different from other volcanoes?
A. It is below ice. B. It lies under the sea. C. It is the largest volcano. D. Its lava affects the airlines.
2. What keeps Grimsvotn stable?
A. The slow flow of water. B. The low water temperature. C. The thick glacier. D. The water pressure.
3. Which of the following is the result of the volcanic eruption?
A. People stop traveling in Europe. B. Airlines suffer from the loss of planes. C. It becomes dangerous for animals to eat outside. D. Farmers have lost many of their animals.
4. This text is most probably taken from____
A. a research paper B. a newspaper report C. a class presentation D. a geography textbook | 阅读理解 | King"s College Summer School is an annual (每年的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King"s College and other colleges in New York. Trips to museums and culture centers are also organized. This year"s summer school will be from July 25 to August 15. More information is as follows:
Application (申请)date * Students in New York should send their applications before July 18, 2007. * Students of other cities should send their applications before July 16, 2007. * Foreign students should send their applications before July 10, 2007. | Courses * English Language Spoken English: 22 hours Reading and Writing: 10 hours * American History: 16 hours * American Culture: 16 hours
| Steps * A letter of self-introduction * A letter of recommendation(推荐) * The letters should be written in English with all the necessary information.
| Cost * Daily lessons: $200 * Sports and activities: $100 * Travels: $200 * Hotel service: $400 * You may choose to live with your friends or relatives in the same city. | Please write to: Thompson, Sanders 1026 King"s Street New York, NY 10016, USA E-mail: KC-Summer-School@ yahoo, com |
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