Li Ming.if I you.I their offer．After all.you are unable to finish the project by yourself．( )A．were, acceptedB．am, will acceptC．should be, would acceptD．were.would accept 题目和参考答案——青夏教育精英家教网—

16．---I did not see your sister at the lecture the day before yesterday．
---You ______her，since she went to see Chinese Zodiac---Jackie Chan's 100th movie．（　　）

	A．	mustn't have seen		B．	shouldn't have seen
	C．	couldn't have seen		D．	needn't have seen

3．The mobile phone has become a major means of communication，_________ us to keep in touch as well as to surf the Internet to keep us __________ of the latest news．（　　）

	A．	permitting； informed		B．	to permit； informing
	C．	to permit； to be informed		D．	permitting； having informed

13．That's just because you can'tappreciate（欣赏） music； in fact，it is a piece of music by Mozart．

20．She all her spare time to her study in the past three years．
That's right，or she the first place in her school in the College Entrance Examination．（　　）

	A．	has devoted； wouldn't have taken
	B．	has devoted； hadn't taken
	C．	devoted； wouldn't have taken
	D．	devoted； wouldn't take

17．You're rushing to work and a man ahead of you collapses on the sidewalk．Do you stop to help？In a study of by-standers，it was found that some people avert their gaze and keep on walking rather than stop and get involved．
"There is a tendency to decide that no action is needed．"says a psychologist．"The first thoughts that pop into your mind often keep you from offering help．In order to take action，you have to work against them．"Here are some common thoughts that might prevent you from helping．
●Why should I be the one？I'm probably not the most competent person in this crowd．You might think someone older or with more medical knowledge should offer assistance．
●What if he doesn't really need my help？The fear of embarrassment is powerful； no one wants to risk looking foolish in front of others．
●No one else looks concerned-this must not be a problem．We can follow the people around us，but most people tend to hold back their emotions in public．
"If you spot trouble and find yourself explaining inaction，force yourself to stop and evaluate the situation instead of walking on，"says the psychologist．"Then retry to involve other people； you don't have to take on the entire responsibility of being helpful．Sometimes it's just a matter of turning to the person next to you and saying，‘It looks like we should do something．'Or asking someone if an ambulance has been called and，if not，to call for one．Once you take action，most people will follow you．"

56．Which is NOT the common thought that stops you from helping others？B
A．I'm not the very person capable of setting the problenu．
B．It looks like we should do something．
C．It must not be a problem as no one else is concerned．
D．He doesn't really need my help．
57．According to a study of by-standers，what will some people do when a man ahead falls down on the sidewalk？C
A．They will call for help and then walk away．
B．They will stop and offer help．
C．They will turn away their eyes and go on walking．
D．They will laugh at him．
58．We learn from the last paragraph that if we spot ttouble，C．
A．we sbould call the ambulance as soon as we can．
B．we should take on the whole responsibility and do something alone．
C．we should stop and evaluate the situation and try to make other people follow．
D．we should turn to other people and ask them to take on the responsibility
59．In order to offer others your timely help，you need toD．
A．ask others for help and call the police
B．get along well with the passers-by who spot the trouble
C．go directly to the police station
D．work against the rirst thoughts that prevent you offering help
60．The main purpose of the text is to tell readersA．
A．to give others a hand
B．to be more competent
C．not to risk looking foolish
D．to stop and evaluate the situation．

2．In 1801，Giuseppe Piazzi discovered a new object in the sky．He thought it was an undiscovered comet．After further observation，he realized that it behaved more like a small planet than a comet．Piazzi named it Ceres after the Sicillian goddess of grain．Ceres remains the largest known asteroids（小行星）in the sky．It means almost 600 miles（1，000 km） in diameter．By the end of the nineteenth century，several hundred other asteroids had been identified．
Tens of thousands of asteroids have since been discovered，with thousands more found each year．Asteroids are masses of rock and metal that orbit（绕轨道而行）the sun between Mars and Jupiter．They did not form into planets because the perturbations of Jupiter kept them moving too fast to join together．The total mass of all of the asteroids is less than the size of Earth's moon．
Some of the asteroids move in orbits outside the zone between Mars and Jupiter．Asteroids that come relatively close to Earth are known as near-Earth asteroids（NEAs）．Scientists estimate that about 1，000 of these asteroids are 0.6 miles（1km） in diameter．An asteroid of this colliding（碰撞）with Earth would be disastrous．
Scientists have found two sites where giant asteroids struck Earth millions of years ago．One asteroid hit Antarctica about 250 million years ago．Another asteroid struck Mexico's Yucantan Peninsula around 65 million years ago，leaving a hole 112 miles（180km） wide and 1，000 yards （915m） deep．One theory blames the extinction of the dinosaurs on this asteroids's collision with Earth and the climate change that resulted from its impact．
Occasionally，small asteroids strike Earth．These cause little damage．Major collision，such as the one that may have killed the dinosaurs，occur rarely--perhaps only once every 100 million years．
Although the chance of an asteroid striking the planet anytime soon is small，scientists continue to study the orbits of asteroids in the sky．They pay particularly close attention to the asteroids whose paths are close to Earth，and have even landed a spacecraft on an NEA named Eros．Their work helps them learn about the formation of the solar system．It may even help them discover ways to avoid an asteroid disaster in the future．

66．Which of the following statement is NOT true about asteroids？C
A．Asteroids are composed of rock and metal．
B．Asteroids orbit the sun between Mars and Jupiter．
C．Large near-Earth asteroids are sure to strike Earth．
D．A large asteroid colliding with Earth would cause a disaster．
67．The word"perturbations"（paragraph 2）is closest in meaning to"B"．
A．Formation of rocks
B．Disturbance of motion
C．Estimation of scientists
D．Influences of size
68．What scientists have found implies thatB
A．two sites of Earth hit giant asteroids millions of years ago
B．Antarctica was once struck by an asteroid millions of years ago
C．one asteroid left a huge hole in Mexico 250 million years ago
D．the extinction of dinosaurs resulted in asteroid's collision with Earth
69．Which of the following events happened third according to the passage？D
A．Giuseppe Piazzi discovered a new object and name it Ceres．
B．Scientists had a spacecraft land on Eros to learn more about the solar system．
C．Asteroids orbiting the sun failed to form into planets．
D．Several hundred asteroids had been identified by the end of the nineteenth century．

	A．	were； accepted		B．	am； will accept
	C．	should be； would accept		D．	were，would accept

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