.– You are not afraid of snakes, are you?--- ...

.– You are not afraid of snakes, are you?

--- No, certainly not. Not rats, not flies, and ____ ants.

高三英语单项填空中等难度题查看答案及解析

She’s not afraid of anything. Snakes? No problem. Walking alone in the dark? Easy. We’re not talking about a superhero here -- SM is a 44-year-old mother.  And she’s fearless because she happens to be missing part of her brain: the amygdala(扁桃腺).

Shaped like a pair of almonds sitting in the middle of your brain, the amygdala helps control fear and anxiety. A rare condition called Urbach-Wiethe disease left SM without her amygdala, and seems to have completely erased her sense of fear.

To try to understand how the amygdala works, a team of researchers made their efforts to scare SM. They showed her horror movies and took her to the Waverly Hills Sanatorium Haunted House in Kentucky. She pushed out one of the monsters(巨物) and laughed. SM said she didn’t like snakes, but at a pet store full of poisonous creatures, she kept asking to touch them. When asked to rate her feelings, SM reported feeling surprised or disgusted, but never fearful.

“She tends to approach everything she should be avoiding,” says Justin Feinstein of the  University of Iowa. This means the amygdala could control deeper urges to approach or avoid danger. Other scientists have a different opinion, though.  “I don’t believe you can make a general statement about what the amygdala does by a single case study,” Elizabeth Phelps said. In 2002, Phelps published a study on a similar patient with amygdala damage who still showed fear.

It may sound like fun to be totally fearless, but we get scared for a good reason. “The nature of fear is survival and the amygdala helps us stay alive by avoiding situations, people, or objects that put our life in danger,” Feinstein said. SM was once followed in a park after dark by a man with a knife, and she simply walked away. “It is quite remarkable that she is still alive,” said Feinstein.

1.SM dares to walk alone in the dark mainly because ____________.

A. she is a superhero

B. she has experienced such conditions a lot

C. she is a mental patient

D. she has no sense of fear

2.Researchers tried their best to frighten SM in order to find ___________.

A. The function of a particular organ

B. SM’s reaction of fear and anxiety

C. The process of removing amygdale

D. A special way to get along with monsters

3.What do we know from the research on SM?

A. It was easy for her to avoid danger.

B. SM never felt fearful but disgusted.

C. SM was frightened by nothing except monsters.

D. SM got along well with the snakes.

4.What is Elizabeth Phelps’ attitude toward the function of the amygdala based on the research on SM?

A. Indifferent    B. Supportive    C. Disapproving     D. Interested

5.What can we infer from the last paragraph?

A. People can remove their amygdala to be fearless.

B. SM will be admired because of her bravery.

C. No one can survive if their amygdala is removed.

D. The sense of fear is crucial to humans.

高三英语阅读理解中等难度题查看答案及解析

— Are you sure you won’t have another cup of coffee?

—Okay,

A. I’m afraid not.　　　　 B. I’d rather not.

C. go on then.　　　　　　 D. stop in then.

高三英语单项填空中等难度题查看答案及解析

—Are you sure you’re ready for the best?

—_________. I’m well prepared for it.

A. I’m afraid not 　　　　 　 B. No problem

C. Hard to say　 　　　　　　 D. Not really

高三英语其他题中等难度题查看答案及解析

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 a 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.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.

高三英语阅读理解中等难度题查看答案及解析

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.

高三英语阅读理解中等难度题查看答案及解析

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.

高三英语阅读理解中等难度题查看答案及解析

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.

高三英语阅读理解中等难度题查看答案及解析

Even if you’re not an astronomy fan, chances are that you can easily recognize certain constellations (星座) and stars such as the Big Dipper (北斗七星) and the North Star.

The North Star is the brightest star in the constellation known as the Little Dipper. It is so-called because of the special position. If you were to stay up all night looking at the stars, you’d slowly see them move around a point in the sky known as the North Celestial Pole.

You would notice, however, that one star remains still. This is the North Star, so named for its location almost directly in line with the North Celestial Pole.

Due to its position in the sky, at one time sailors used the North Star as a navigational tool. By measuring the angle between the northern horizon and the North Star, a navigator could accurately determine the ship’s latitude.

But latitude, or the imaginary lines stretching across the globe parallel to the equator, was not enough to plot a ship’s location. Knowing latitude only allowed navigators to locate themselves on a particular latitude line at a particular distance from the equator. It was only with the invention of a way to accurately measure longitude that precise navigation became possible.

Although the North Star is no longer used by navigators, it remains a heavenly symbol of human curiosity and exploration.

1.Which of the following statements about the North Star is TRUE?

A. The North Star is the brightest star in the night sky.

B. The North Star, together with some other stars, make up the Little Dipper.

C. The North Star moves along the same course with other stars.

D. The North Star is exactly located in line with the North Celestial Pole.

2.What can be inferred from the passage?

A. The North Star could help navigators set a straight course of their ship in the past.

B. Real lines that are parallel to the equator are called “latitude”.

C. Either latitude or longitude could make precise navigation possible.

D. Now the North Star is no longer a navigational tool used by sailors.

3.Which is probably the best title of the passage?

A. What is a navigational tool?

B. What can be called the earliest GPS?

C. What makes the North Star so special?

D. What is the symbol of human exploration?

高三英语阅读理解中等难度题查看答案及解析

－Are you going to take the job?

－Certainly, though the salary is not so good．        ，you know．

A．A bird in the hand is worth two in the bush

B．A golden key can open any door

C．Actions speak louder than words

D．Better late than never

高三英语单项填空简单题查看答案及解析