If you are afraid of the dark,it’s not a big deal.It’s perfectly normal to feel afraid After all,animals do too. “Fear matters,”says Karen Warkentin,an ecologist.“It’s a good thing,” she adds, “because fear makes you do things that keep you alive.”
Like kids,many animals experience fear and they respond to the feeling in variety of ways.A frightened turtle pulls its head and legs inside its shell.A small fish will swim away when a big,hungry fish approaches.
Some animals respond to fear in ways you might not expect.The first example is that the fear of being eaten can scare some frogs right out of their eggs. Warkentin made the surprising discovery while studying red—eyed tree frogs in Costa Rica.
In this species,female frogs attach jellylike clumps(果冻一样的块状物)of their eggs to the undersides of leaves.The leaves hang on branches that dangle(悬挂)over ponds.After they hatch from the eggs,the tadpoles(蝌蚪)then fall into the water,where they eventually grow into adult frogs.
Tree frog eggs usually grow for 6 days before hatching.If they sense that a hungry snake is about to attack,however,they can hatch up to 2 days ahead of schedule. As the snakes are unable to swim,by falling into the water early,the tadpoles can escape.
If hatching early helps protect red—eyed tree frogs from snakes,you might wonder why their eggs don’t always hatch sooner.It turns out that hatching early brings its own danger.Once tadpoles land in the water,hungry fish and other animals like to eat them too.Staying in their eggs for a full 6 days,then,allows frog embryos(胚胎)to grow big and strong.This extra growth improves their chances of surviving in the water.
1.It can be inferred from the passage that fears .
A. help animals grow bigger and stronger
B. are less common among young animals
C. help animals move a lot to fit the environment
D. are more or less important in order for animals to survive
2.We are told in the passage that tree frogs .
A. face danger both inside their eggs and in the water
B. will grow fast if they fall into the water later
C. are surprisingly clever when inside their eggs
D. stay in their eggs longer if they are frightened
3.Why do the tadpoles hatch up to 2 days ahead of the schedule?Because
A. They like falling into the water early
B. They want to grow into adult frog
C. They sense a hungry snake is about to attack
D. Frog embryos can grow strong
4.What is the best title of the passage ?
A. What is Fear B. Why do we feel afraid
C. You feel afraid,animals do too D. Fear is a good thing
5.What do you think would be discussed in the following paragraph?
A. Further explanations as to why tree frogs hatch ahead of schedule.
B. How the unborn frogs know when a snake is about to attack them.
C. Another example of animals that responds to fear in an unexpected way.
D. How tree frogs improve their chances of survival before falling into the water.
高一英语阅读理解中等难度题
If you are afraid of the dark,it’s not a big deal.It’s perfectly normal to feel afraid After all,animals do too. “Fear matters,”says Karen Warkentin,an ecologist.“It’s a good thing,” she adds, “because fear makes you do things that keep you alive.”
Like kids,many animals experience fear and they respond to the feeling in variety of ways.A frightened turtle pulls its head and legs inside its shell.A small fish will swim away when a big,hungry fish approaches.
Some animals respond to fear in ways you might not expect.The first example is that the fear of being eaten can scare some frogs right out of their eggs. Warkentin made the surprising discovery while studying red—eyed tree frogs in Costa Rica.
In this species,female frogs attach jellylike clumps(果冻一样的块状物)of their eggs to the undersides of leaves.The leaves hang on branches that dangle(悬挂)over ponds.After they hatch from the eggs,the tadpoles(蝌蚪)then fall into the water,where they eventually grow into adult frogs.
Tree frog eggs usually grow for 6 days before hatching.If they sense that a hungry snake is about to attack,however,they can hatch up to 2 days ahead of schedule. As the snakes are unable to swim,by falling into the water early,the tadpoles can escape.
If hatching early helps protect red—eyed tree frogs from snakes,you might wonder why their eggs don’t always hatch sooner.It turns out that hatching early brings its own danger.Once tadpoles land in the water,hungry fish and other animals like to eat them too.Staying in their eggs for a full 6 days,then,allows frog embryos(胚胎)to grow big and strong.This extra growth improves their chances of surviving in the water.
1.It can be inferred from the passage that fears .
A. help animals grow bigger and stronger
B. are less common among young animals
C. help animals move a lot to fit the environment
D. are more or less important in order for animals to survive
2.We are told in the passage that tree frogs .
A. face danger both inside their eggs and in the water
B. will grow fast if they fall into the water later
C. are surprisingly clever when inside their eggs
D. stay in their eggs longer if they are frightened
3.Why do the tadpoles hatch up to 2 days ahead of the schedule?Because
A. They like falling into the water early
B. They want to grow into adult frog
C. They sense a hungry snake is about to attack
D. Frog embryos can grow strong
4.What is the best title of the passage ?
A. What is Fear B. Why do we feel afraid
C. You feel afraid,animals do too D. Fear is a good thing
5.What do you think would be discussed in the following paragraph?
A. Further explanations as to why tree frogs hatch ahead of schedule.
B. How the unborn frogs know when a snake is about to attack them.
C. Another example of animals that responds to fear in an unexpected way.
D. How tree frogs improve their chances of survival before falling into the water.
高一英语阅读理解中等难度题查看答案及解析
If the way ___ you think of is not good enough, you can learn the way____ the top students deal with their study.
A. in which; \ B. which; which
C. that; which D. \;\
高一英语单项填空中等难度题查看答案及解析
If the way _____ you think of is not good enough, you can learn the way ______the top students deal with their study.
A.in which; / B.which; which
C.that; which D./; /
高一英语单项填空中等难度题查看答案及解析
If you are lost in the mountains, stay calm in the face of darkness, loneliness, and the unknown. It will greatly increase your chances of survival. Many people think that preparing necessary equipment and knowing how to use it are very important, but in fact eighty percent of mountain survival is your reaction(反应) to fear.
Finding a hiding place
Unnecessary labor (劳动) will make you sweat and make you cold. Find a hiding place around you before trying to start your own construction. If you are in a snow-covered area, you may be able to dig a cave in deep snow for protection from the wind. You should try to hide yourself in the middle of the mountain if possible. Stay out of the valleys--- cold air falls, and the valley floor can be the coldest area on the mountain.
Signal(发信号) rescuers for help
The best time to signal rescuers is during the day. Signal for help from the highest point possible--- it will be easier for rescuers to see you, and any sound you make will travel farther. If you take a box of matches and a space blanket ( a special blanket for traveling ), build three smoky fires and put your blanket ---gold side facing out --- on the ground.
Do not walk away
It will make finding you more difficult , as search teams will be trying to follow your path and may miss you if you have gone off in a different direction. Searchers often end up finding a car with no one in it. If you get frostbitten(冻伤) , do not rewarm the affected area until you are out of danger.
You can walk on frostbitten(冻伤) feet, but once you warm the area and can feel the pain, you will not want to walk anywhere. Try to protect the frostbitten area and keep it dry until you are rescued.
1. When lost in the mountains, you can increase your chances of survival if you _____.
A.take a space blanket with you | B.do more physical labor |
C.try to find a car immediately | D.walk as far as possible |
2. According to the passage, people most probably fail to survive if they ______
A.do not take enough equipment | B.stay in the middle of the mountain |
C.do not keep themselves warm | D.stay in a snow-covered area |
3.What can we infer from the passage?
A.Don’t travel by yourself | B.Mountain traveling is dangerous |
C.Don’t get frightened in danger | D.Avoid going to unfamiliar places |
4. Which statement is not true according to the passage?
A.If lost in the mountains, you must try to find a way out quickly. |
B.Stay out of the valleys when looking for a hiding place |
C.The best time to signal rescuers is during the day |
D.With a space blanket, you can put it on the ground---gold side facing out |
高一英语阅读理解中等难度题查看答案及解析
—Do you mind if I keep pets in the building?
—______.
A. I’m afraid you can’t B. Of course not, it’s not allowed here
C. Great! I love pets D. No, you can’t
高一英语单项填空中等难度题查看答案及解析
—Hi, Bob, are you going to attend tomorrow’s conference?
—Oh, I’m afraid not, invited to.
A. even if B. as if C. if D. since
高一英语单项填空中等难度题查看答案及解析
—Hi, Bob, are you going to attend tomorrow’s conference?
—Oh, I’m afraid not, invited to.
A. even if B. as if C. if D. since
高一英语单项填空中等难度题查看答案及解析
Are you 1 for a place in the southwest of China? If your answer is “yes”, why not pay a trip to Shangri-la, which is 2 mysteries and beauty.
The world “Shangri-la” first appeared in the 1993 novel Lost Horizon 3 the British writer James Hilton. He described a beautiful kingdom where three rivers 4 together and snow-capped mountains reached to the sky, with fields of long grass covering the earth. In this perfect world lived people who had discovered how to stay 5 forever.
Three mountains are covered with snow and tower 6 the land. These snowy mountain tops form 7 beautiful picture that we can’t wait to fly there.
Lakes, 8 by vast grasslands, look like diamonds. Sheep, cows, horses and animals feed 9 on the green grass and the forests around are 10 to lots of birds and animals. In this heavenly world, people live in perfect harmony with nature.
1. A.tired B.thirsty C.hungry D.angry
2. A.full of B.lack of C.short of D.fill with
3. A.with B.by C.for D.to
4. A.put B.got C.joined D.formed
5. A.calm B.still C.young D.the same
6. A.over B.above C.on D.beyond
7. A.so a B.such a C.such D.so
8. A.covered B.surrounded C.separated D.divided
9. A.simply B.deeply C.mostly D.finally
10. A.family B.room C.space D.home
高一英语完型填空中等难度题查看答案及解析
Visitors are not permitted ________ the park after dark, because of the lack of lighting.
A. entering B. entering in
C. to enter in D. to enter
高一英语单项填空中等难度题查看答案及解析
Visitors are not permitted ________ the park after dark, because of the lack of lighting.
A. to enter B. entering
C. to enter in D. entering in
高一英语单项填空中等难度题查看答案及解析