阅读理解

　　Why don't birds get lost on their long flights from one place to another? Scientists have puzzled over this question for many years. Now they are beginning to fill in the blanks.

　　Not long ago, experiments showed that birds rely(依赖) on the sun to guide them during daylight hours. But what about birds that fly at night? Tests with artificial(人造的) stars have proved that certain night-flying birds are able to follow the stars on their long-distance flights.

　　A dove had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The birds's cage was placed under an artificial starfilled sky. The bird tried to fly in the same direction as that taken by his outdoor cousins. Any change in the position of the make-believe stars caused a change in the direction of his flight.

　　Scientists think that doves, when flying in daylight, use the sun for guidance. But the stars are obviously their principal(主要的) means of navigation(or flying). What do they do when the stars are hidden by clouds? Obviously, they find their way by such landmarks as mountain ranges, coastlines, and river courses. But when it's too dark to see these, the doves circle helplessly, unable to get their bearings(方位).

1．The reason why birds don't get lost on long flights ________.

[　　]

A．is known by everybody

B．still remains a mystery

C．has been discovered recently

D．has been known to scientists for years

2．Experiments showed that ________.

[　　]

A．birds rely on the sun to guide them

B．birds rely on the stars to guide them

C．birds are likely to get lost if there aren't artificial stars

D．day-flying birds rely on the sun while night-flying birds rely on the stars

3．The experiment on the dove indicated(表明) that ________.

[　　]

A．a bird that has been caged will not fly long distances

B．some birds seem to follow the stars when they fly at night

C．a bird having spent its lifetime in a cage has to- be taught how to navigate

D．birds can fly in the same direction as that taken by their cousins

4．Under artificial stars, the bird in the cage ________.

[　　]

A．tried to fly in the same direction as birds not caged

B．changed direction when the position of the stars was changed

C．would not fly well

D．both A and B

5．In total darkness, doves ________.

[　　]

A．circle helplessly

B．use landmarks

C．find their way by clouds

D．fly back home

When you step into a new environment．you must have a strong wish to fit in．Fitting in means making more friends， 36 more influence(影响) on others and getting more chances to live a happier life．Here is some 　37 that Call help you．

Be confident．Confidence attracts most people．Everyone is special and there is only one person like you in this world．Spend 　38 thinking about your strong points．If so，you will be able to build up confidence step by step．You won’t have much difficulty fitting in．

Be kind to everyone．Kindness is the bridge to your own happiness． 39 people notice your kindness，they will return it one day．Always give more than you receive，and think more of others than of 　40 ．A person who cares for others is popular everywhere．

Be active in group activities．Various activities like playing football 　41 help you to be known to others．You may add more friends to your circle．At the same time，you’ll be amazed to see how much they like you． 42 wasting time being alone，go out to dance and sing together with others to develop friendship．

Be optimistic(乐观的)．Optimism makes both you and others feel pleased．It makes a good first impression(印象)．A pleasant smile costs the 　43 and does the most．Humor(幽默) catches others’ attention as well．People win like you for making them live 　44 ．

If you follow what is mentioned above，you 　45 by people around you．As a result，you will fit in very well and enjoy your new life．

(　 )36．A．had　　　　 　　 B．to have 　　　　　　 C．having

(　 )37．A．advice 　　　　　 B．advices 　　　　　　C．suggestions

(　 )38．A．sometimes 　 B．some times 　　　　C．some　 time

(　 )39．A．Though 　　　　 B．When 　　　　　　　 C．Until

(　 )40．A．you 　　　　　　 B．your 　　　　　　　　　 C．yourself

(　 )41．A．can 　　　　　　　B．have to 　　　　　　　　C．needn’t

(　 )42．A．Instead of 　 B．As well as 　　　　　C．As long as

(　 )43．A．1ittle 　　　　　　 B．less　　　　　　　　　 C．1east

(　 )44．A．friendly 　　　　 B．happily 　　　　　　 C．clearly

(　 )45．A．will accept 　　B．won’t accept 　　 C．will be accepted

　　　 Some people have a very poor sense of direction. Unlucky , I am one of them. I have visited a place many times but I may still get lost there the next time.

　　　 When I was a little girl, I never dared ask strangers the way. And so I used to walk round in circle and hope that by chance I would get to the place I was going to.

　　 Now , I am no longer too shy to ask people for directions, but I often receive helpless or even wrong information. So I try to avoid giving people wrong directions. If anyone asks me the way somewhere, I would say,"sorry, I am a stranger here."

　　 Once on my way to work I was stopped by a man. He asked me if I could tell him the way to the Friendship Building. I gave him my usual reply. But just as I walked on only a few steps. I realized that he had asked the way to my office building. However, I had no time to turn back and look for him. I was rushing to meet with someone at my office and I didn't want to keep him waiting.

　　 When I just got to my office, the secretary showed in the man who had asked me for directions. Imagine how embarrassed I was and how surprised he was when we saw each other at the first sight!

41. The writer always refuses to give people directions because 　　　　 .

　 A.she's a strange to the city　　　　 B.she doesn't know the people　　

　 C.she has no time to help others　　　 D.she's afraid of giving wrong directions.

42A man stopped the writer on the way to 　　　　 .

A.sell her something　　　　 B.ask for the time　　

C.make friends with her　　 D.ask for the directions.

43The Friendship Building is the place where the writer 　　　　 　.

A.lives　　 B.studies　　 C.works　　 D.teaches

44The word "embarrassed" 　in the last paragraph means "　　　　　 " .

A.尴尬　　 B.困惑　　 C.激动　　 D.拮据

45Which of the following is TRUE according to the passage?

A、　 The writer is too shy to give others directions　　　　

B、　 The writer has a very poor sense of directions

C、　 The writer never got lost when she was young.

D、　 The man was quite nervous when he saw the writer.

　　　 What do you do if you’re stranded(处于困境的) on a lonely island? Surely you need to find a way to get in touch with the outside world. Your best chance of doing this is to draw the attention of a passing plane.

Body signals (信号)

　　　 Pilots from different countries understand body signals if they have the correct training. When you wave your arms up and down in a straight line, it means “yes”. When you point downwards and swing your arm from side to side, it means “no”. if you want the polite to know that it’s safe to land, push your hands out in front of you and bend (弯曲) your knees. If you want to say that it’s not safe to land, put your arms in the air and move them to one side.

Smoke signals

　　　 The smoke from a fire can be seen from far away, so it’s a good way to draw attention. If the weather is dry, it isn’t hard to start a fire. Remember, however, that fires can be very dangerous if they get out of control. Never light a fire unless you’re sure that it can’t spread. It the ground is dark, light smoke can be seen more easily. Green grass and leaves produce light smoke.

Ground-to-air signals

　　　 It’s a good idea to build some signals, too. Use large pieces of wood to make the symbols(标记). If you can’t find any wood, use earth. Some useful symbols are:

　　　 F　　 “I need food and water.”

　　　 II 　 “I need medicine.”

　　　 I　　 “I am badly hurt.”

　　　 X　　 “I am unable to move from here.

Pilots’ replies

　　　 If the pilot lowers the plane’s wings from side to side, this means “message received and understood”. (At night, the pilot flashes the plane’s green lights.) If the pilot flies the plane in a clockwise circle, this means “message received but not understood”. (At night, the pilot flashes the plane’s red lights.)

　　　 However, there is no signal which means “message not received”. Why not?

54. Which picture means “it’s not safe to land”?

55. What can we learn from the passage?

　　　 A. Swinging your arm from side to side means “yes”.

　　　 B. If the ground is dark, light smoke can’t be seen.

　　　 C. If you need some medicine, make a symbol “II”.

　　　 D. The pilots make replies with a blue light at night.

56. What is the passage mainly about?

　　　 A. The explanation of building signals on an island.

　　　 B. The importance of making signals on an island.

　　　 C. Ways of sending out signals on a lonely island.

　　　 D. Ways of receiving signals from a lonely island.