Anyone in the lab has to the following dos and don’ts.A．observe B．consult C．recognize D．direct 题目和参考答案——青夏教育精英家教网—

题目内容

Anyone in the lab has to the following dos and don’ts.

A．observe B．consult C．recognize D．direct

【解析】

试题分析：句意：实验室的任何人都要遵守下面的该做的，和不该做的。四个选项的含义分别是：A．observe观察，庆祝，遵守，B．consult咨询，C．recognize认识，识别，D．direct指导，根据句意选A。

考点：考查动词辨析

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Dear teachers and friends，

It is my great privilege to __________________________________________________

____________________________________________________________________________

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C. seating; fixing D. seated; fixed

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In Egyptian myth, Apophis was the ancient spirit of evil and destruction, a demon (恶魔) that was determined to throw the world into darkness forever. A fitting name, astronomers reasoned, for a threat now rushing towards Earth from outer space. Scientists are monitoring the progress of a 390-metere wide asteroid (小行星) discovered last year, which is potentially on a collision (碰撞)course with the planet.

NASA has estimated that Apophis has an outside chance of hitting the Earth in 2036. If it did hit us, thousands of square kilometers would be directly affected by the explosion but the whole of the Earth would see the effects of the dust sent into the atmosphere. At a recent meeting of experts in Near-Earth objects (NEOs) in London, scientists said it could take decades to design, test and build the required technology to deflect the asteroid.

The Apophis asteroid is placed at four out of ten on the Torino scale—a measure of the threat caused by an NEO where 10 is a certain collision which could cause a global disaster. This is the most possible danger of any asteroid in recorded history and it has a 1 in 37 chance of hitting the Earth.

Alan Fitzsimmons, an astronomer from Queen’s University Belfast, said, “When it does pass close to us on April 13, 2029, the Earth will deflect it and change its orbit. There is a small possibility that if it passes through a particular point in space, the so-called keyhole, the Earth’s gravity will change things so that when it comes back around again in 2036, it will collide with us.” The chance of Apophis passing through the keyhole, a 600-meter patch of space, is 1 in 5,500, based on current information.

There is no shortage of ideas on how to deflect asteroids. The Advanced Concepts Team at the European Space Agency has led the effort in designing a range of satellites and rockets to nudge asteroids that are on a collision course for Earth into a different orbit.

1.The best title for this passage would be ___________.

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B. Apophis, a Good Name for Dangerous Asteroid

C. Our Planet Will Be Ruined in 2036

D. Scientists Study Apophis Asteroid

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A. destroy the quality of

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D. look into the truth of

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A. If Apophis hit the earth, its impact would be enormous.

B. No way to deal with Apophis is available at present.

C. Apophis is the first dangerous asteroid in recorded history.

D. It is uncertain whether Apophis will hit the earth in 2036.

5.What would the passage talk about if it continued?

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Human remains of ancient settlements will be reburied and lost to science under a law that threatens research into the history of humans in Britain, a group of leading archaeologists(考古学家) says. In a letter addressed to the justice secretary, Ken Clarke, 40 archaeologists write of their “deep and widespread concern” about the issue. It centers on the law introduced by the Ministry of Justice in 2008 which requires all human remains unearthed in England and Wales to be reburied within two years, regardless of their age. The decision means scientists have too little time to study bones and other human remains of national and cultural significance.

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