What may cause a company to lose clients and customers after a customer service call c

A.A.Brain activity.

B.B.Her research findings.

C.C.The fact that cell phone use may cause cancer.

D.D.Her research progress.

A．They may be very poisonous

B．They may carry harmful insects

C．They may cause financial troubles

D．They may get lost easily

A．It may exceed human intelligence sooner or later．

B．It may ultimately over-amplify the human minD

C．Super-intelligence may cause its own destruction．

D．Super-intelligence may eventually ruin mankin

D．

What is the mans opinion of the research of coffee？

A．Decaffeinated coffee may help prevent heart disease.

B．Coffee does not necessarily cause heart disease.

C．Coffee has less caffeine than soda.

D．Regular and decaffeinated coffee contain the same amount of caffeine.

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A.A man that may come before the happening of an earthquake.

B.The leading factor that may cause a series of events to occur.

C.Any meaningful sigh that indicates some would-be happenings.

D.An event that may have symbolic or significant nature.

What's the finding of the research undertaken at Carnegie Mellon University？

A．People spend more time on the Interact now.

B．People spend less time with their families and friends now.

C．The Net proves socially healthier than television.

D．Interact use may cause a drop in psychological health.

ay ____.

A.in any emergency or if in any doubt as to what decision or measures to take

B.in the event of any impending action in machinery spaces that may cause reduction in ship's speed

C.when isolating and bypassing machinery to be worked on

D.co-operating with any engineer in charge of maintenance work

Forces other than damaging winds are also at work inside tornadoes (龙卷风) . Sometimes,as the wind passes a house, the walls and ceiling burst apart as if a bomb had gone off inside. This explosion is caused by the low air pressure at the center of a tornado.

The pressure at the center of a tornado is usually 13 pounds per square inch. However,inside the house the air pressure is normal, about 15 pounds per square inch.The difference of 2 pounds per square inch between the inside and outside pressure may not seem like much. But suppose a tornado passes over a small building that measures 20 by 10 by feet. On each square inch of the building, there is 2 pounds of pressure from the inside

that is not balanced by air pressure outside the building. On the ceiling, that adds up to an unbalanced pressure of 57600 pounds. The pressure of the four walls adds up to 172800 pounds.

If windows are open in the building, some of the inside air will rush out through them.This will balance the pressure inside and outside the building.But if the windows are shut tightly, the huge inside pressure may cause the building to burst.

Unfortunately, heavy rain often occurs in the storms that later produce tornadoes,so people often shut their windows. This may cause far worse damage later.

21、 What did the paragraph before this passage most probably discuss？

A、 Measuring rainfall from a storm

B、 The kinds of damage caused by explosions

C、 The powerful winds of tornadoes

22、 Which of the following is the main topic of the passage？

A、 How tornadoes can be prevented

B、 When tornadoes usually occur

C、 Why tornadoes cause so much damage

23、 Tornadoes can destroy buildings because the()

A、 force of a tornado increases the air pressure in a building

B、 air pressure inside a tornado is less than the air pressure inside a building

C、 air pressure at the center of a tornado is over 172000 pounds

24、 What is the difference per square inch between the air pressure inside a building and the air pressure inside a tornado？

A、 2 pounds

B、 13 pounds

C、 15 pounds

25、 What would happen if the windows are shut tightly in the stormy weather？

A、 Tornadoes may be formed

B、 The house may be apart

C、 There may not be any pressure inside the building

towards success.The often told “ spider story ” is about Robert Bruce, a leader of the Scots (苏 格兰人) in the 13th century, who was hiding himself in a cave from the English.He watched a spider making a net.The spider tried to reach across a place which was very difficult to get to in the rock.He tried six times without success.On the seventh time he made it and went on to make his net.Bruce is said to have taken heart and to have gone on to defeat the English army.Edison, the inventor of the light bulb(电灯泡., made hundreds of models that failed before he found the right way to make one.So what？ First, always think about your failure.What caused it？ Were conditions right？ What can you change so things go right next time？ Second, is the goal you are trying to reach the right one？ Try to do some thinking about what your goals may be.Think about this question.“ If I do succeed in this, where will it get me？” this may help you prevent failure in things you shouldn’t be doing anyway.The third thing to remember is that failure is a part of life.Learn to “ live with yourself” even though you may have failed.

1.Robert Bruce was hiding in a cave to _____.

A.learn how failure could be a next success

B.protect himself from the English enemy

C.think about what failure was

D.watch a spider making a net

2.“ Made it “ in this text means “____”.

A.reached

B.succeeded

C.got it

D.failed

3.Both the “spider story” and Edison’s story tell us mainly about _____.

A.the value of failure

B.famous failure

C.ways of failure

D.the cause of failure

4.The writer tells you to do all the following EXCEPT ____.

A.to think about the cause of your failure

B.to decide on the right goal for yourself in difficulty

C.to remember that you will never fail in your life

D.to consider failure to be normal

5.Which of the following is NOT true？ ()

A.Bruce and Edison were successful examples

B.One should always improve things in order to be successful

C.Failure may be regarded as a way towards success

D.Edison also learned a lot from the Robert Bruce’s story

children do not show them proper respect, while children complain that their parents do not understand them at all.

What has gone wrong？ Why has the generation gap appeared？

One important cause is that young people want to choose their own life style. In more traditional societies, when children grow up, they are expected to live in the same area as their parents, to marry people on their children are another cause of the generation gap.

Parents often expect their children to do better than they do, to find better jobs, to make more money; the high wishes that parents place on their children are another cause of the generation gap.

Finally, the high speed of social changes deepens the gap. In a traditional culture, people are valued for their wisdom, but in our society today the knowledge of a lifetime may be out of use overnight.

According to the passage, children today expect their parents to ______.

A．give them more independence

B．choose a good job for them

C．live together with them

D．make more money