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plateau (高原) have been used to the high speed trains flying by above them.
"The heavy use of the underpasses (铁路下过路口 )shows the animals'
migration (迁徙)habits have not been affected by the railway," said Yang Qisen,
who has been studying the railway's impact (影响) on wildlife since it opened
five years ago.
Yang, who is a researcher with the Institute of Zoology under the
Chinese Academy of Sciences (中科院动物研究厅), said a group of 3,000
antelopes live mostly in eastern Qinghai Province. However, every June, some
of them migrate to the Kekexili region of western Qinghai and northeastern Tibet
to give birth to their young.
The animals make their return journey in August, which means they pass
under the railway twice a year, he said.
For the past five years, between June and September, Yang and his team
have stayed near the railway to find out what it had done on local wildlife. They
have paid close attention to the migration patterns of the antelopes.
In 2004, 96 percent of the migrating antelopes were seen using the
underpasses. After 2005, the figure rose to 98 percent, Yang said.
B. The railway on the plateau.
C. The impact of the railway on antelopes.
D. Researchers studying the antelopes.
B. the railway's influence on wildlife
C. the migration of antelopes
D. the habits of wild animals
B. August
C. September
D. The text doesn't tell us
B. directly
C. by flying by
D. three times a year
B. a group of 3,000 antelopes live mostly in eastern Tibet
C. the migration of antelopes has been affected by the railway
D. after 2005, more and more antelopes are using the underpasses to migrate
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 pilot 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. If 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 pilots 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?
【小题1】 Which picture means "it's not safe land"?
【小题2】 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. |
| 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 |
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 pilot 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. If 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 pilots 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?
【小题1】 Which picture means "it's not safe land"?
【小题2】 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. |
| 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 |
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 pilot 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. If 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 pilots 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?
1. Which picture means "it's not safe land"?
2. 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.
3. 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
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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 pilot 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. If 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 pilots 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?
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.
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.