Maybe it is true that we do not know what we have got until we lose it,but it is also true that we do not know what we have been missing until it arrives.

It takes an hour to like someone,and a day to love someone,but it takes a lifetime to forget someone. Giving someone all your love is never an assurance(保证)that they will love you back. Do not expect love in return;but if it does not,be content it has grown in yours. Do not rely on one's appearance;it can trick you. Do not rely on wealth;even that fades away. Rely on someone who makes you smile,because it takes only a smile to make a dark day seem bright.

There are moments in life when you miss someone so much that you just want to pick them from your dreams and hug them. Dream what you want to dream;go where you want to go;be what you want to be,because you have only one life and one chance to do all the things you want to do.

The brightest future will always be based on a forgotten past. You cannot go on well in life until you let your past failures and heartaches go off. May you have enough happiness to make you sweet,enough trials(考验)to make you strong,enough sorrow to keep you human,enough hope to make you happy. The happiest people do not necessarily have the best of everything;they just make the most of everything that comes along their way. Happiness waits for those who cry,those who appreciate the importance of people who have touched their lives. Always put yourself in others' shoes. If you feel that it hurts you,it probably hurts the other person,too.

When you were born,you were crying and everyone around you was smiling. Live your life so that when you die,you are the one who is smiling and everyone around you is crying.

1.In this passage,the writer wants to tell us ______.

A. what to do in our life B. where to go with other persons

C. how to treat our life D. how to get on well with other persons

2.Which of the following statements is TRUE according to the passage?

A. If you give someone your love,you are sure to receive love in return.

B. We often don't know what we have lost until it happens someday.

C. It is wise not to rely on anybody because you are likely to be cheated.

D. If it takes you a short time to love someone,you will forget the person.

3.One should ______ the painful past according to the writer.

A. value B. remember C. consider D. forget

The demands of the modern world are growing day by day and this is putting more pressure on scientists to do research. However, as stated by Griffiths, “There is no hope of doing perfect research”. Naturally, there have been a lot of criticisms (批评), as many scientists immediately announce that their research methods are very safe and that they have the perfect research theory (理论).

However, scientific history is filled with examples, in which a perfect scientific solution that was based on decades of scientific research has been overturned (推翻) with new theories. Naturally the first example that comes to mind is the fact that Newton’s Theories were thought to be very safe and they were used in all fields of science. For centuries, thousands of scientists around the world used Newton’s Theories to formulate (规划) other theories.

However, after nearly two centuries of use, Newton’s Theories were found to be not as perfect as they were thought. Through Einstein’s publication on the General Theory of Relativity, it was found that Newton’s laws were imperfect in explaining all motions (运动) that were taking place in our universe. It was found to be imperfect under some conditions, even though, Newton’s laws are still used today to predict motion at low speeds.

Thus, perfect research is only a myth (神话). Of course, this does not mean that a scientist should simply give up and accept imperfection in his or her research efforts. Improvements and changes in research techniques and methods are a natural part of evolution (进化) and it is each scientist’s responsibility to take it forward as much as possible.

While the final answer to the universe’s questions may never exist, a time will come when there will be fewer questions as new answers are found and more improved research is carried out by scientists around the world.

1.Why have there been a lot of criticisms?

A. The modern world demands mor e and more.

B. Scientists have a negative attitude.

C. Many scientists arrive at their conclusions (结论) too fast.

D. Griffiths does not believe what scientists say.

2.Through the publication of the General Theory of Relativity, Newton’s Theories turned out to be ______.

A. not so perfect B. completely wrong C. very safe D. very exact

3.What will scientists do to deal with the “imperfectness” problem?

A. Accept the fact and give up.

B. Improve and change their methods and techniques.

C. Try their best to carry out the perfect study.

D. Ignore it and do as they please.

4.We can learn from the last paragraph that ______.

A. the universe’s questions are sure to have a final answer

B. the number of questions is sure to increase with the passing of time

C. scientists are carrying out improved studies

D. there will be more scientists in the world in the future

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,并在答题卡上将该项涂黑。选项中有两项为多余选项(注:选项E在答题卡上涂AB;选项F在答题卡上涂AC;选项G在答题卡上涂AD)

Each Indian tribe had a different language.Many Indians never learned any language except their own.Do you know how Indians from different tribes talked to each other?They had two ways to talk without sound.1.

Sign language is a way of talking by using signs.Indians used sign language when they met strangers.In this way, they could find out whether the stranger was a friend or an enemy.In the Indian sign language,signs were made with the hands.Indians usually used signals when they wanted to send messages to someone far away.To make signals,an Indian might use a pony.2.Or he might use smoke,a mirror or fire arrows.

To signal that he had seen many animals,an Indian rode his pony in a large circle.Sometimes the Indian gave a signal like this and then went away to hide.3.

The blanket signal was visible from far away.An Indian held the comers of a blanket in his hands.Then he began to swing the blanket from side to side in front of him.4.He could also send many signals with a mirror.He usually used the mirror to warn someone of danger.Or he attempted to get the attention of a person for away.But he also used it to send messages in code.5.At night,Indians used fire arrows for signaling.

Now you can see that Indians didn't need to learn each other’s language.They could talk to one another by using signals or sign language.

A.This meant that there was danger.

B.He might use a blanket.

C.Different things mean different to them.

D.One way was by sign language;the other way was signals.

E.An Indian could send many different signals with his blanket.

F.But they still can make themselves understood.

G.Of course,mirrors could be used only when the sun was shining.

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