Bats are the only mammals(哺乳动物) which can fly...

Bats are the only mammals(哺乳动物) which can fly properly. Other flying mammals have wings of thin skin which cover their sides between their front and back legs. They can only fly from tree to tree, but they cannot change direction when they want to.

All bats fly at night and most of them hunt for flying insects(昆虫), such as bees. The common bat finds its food by making a constant noise that the human ear cannot hear. The bat listens for echoes(回声) of the noise as it bounces(反射) off the insects showing the bat their position.

The Fruit bat feeds on many different kinds of fruit. It does not use echoes but instead has very large, special eyes to see even in low light. The largest Fruit bat has a wing length of 0.75 meters. The Vampire bat drinks the blood of large mammals, and a few bats catch fish, birds and even other bats.

1. Some flying mammals are not real flyers because _____.

A. they do not have wings                     B. their wings are too thin

C. they have skin between their legs             D. they cannot turn around in the air

2. When common bats hunt for food they _____.

A. use echoes to kill the insects           B. make a noise to draw insects to them

C. produce a sound and listen to the echoes     D. listen noise made by the insects

3. Unlike other bats, the Fruit bat _____.

A. can see very well                   B. eats fruit and fish

C. has very long wings                    D. has excellent hearings

4.The word "it" in the second paragraph refers to _____.

A. the bat           B. the echo      C. the noise       D. the insect

高二英语阅读理解中等难度题查看答案及解析

Sydney’s Royal Botanic Gardens are to start a war on gray-headed flying foxes. These super bats have invaded one of Australia’s most famous public spaces. Officials have said the animals are destroying trees and have to move on.

These unwanted guests at Sydney’s Royal Botanic Gardens look like tiny foxes with wings. Officials have estimated there are about 11,000 of them living in the harbor-side park. After inspecting damage to dozens of trees they now believe there are twice as many as previously thought. Branches have been breaking under the weight of these furry invaders and their droppings have been poisoning plants.

Help may well be at hand, however, in the shape of the ordinary garbage bin. The gardens’ director Dr. Tim Entwistle hopes the unpleasant sounds of crashing bin lids will agitate the flying foxes and force them to move on. “The way to disturb them is to use noises, so we’ve used the loud noises made by rubbish bins in the past. You can also use speakers as long as you move the noise around, and what we’ll do is to have a series of noises, at the beginning and end of the day. What we’ve found in the past is that the flying foxes leave the gardens and go somewhere else,” said Tim.

The gray-headed flying fox is Australia’s largest bat. It flies around at night using its eyes and a powerful sense of smell to search for fruit and flowers. Officials at the Royal Botanic Gardens in Sydney have said they’re optimistic the unwelcome colony can be uprooted. If and when the bats do move to other parts of the city they will of course then become someone else’s problem.

1.Why do people want to get rid of the flying foxes?

A. Because the gardens are important public places.

B. Because they are polluting the city.

C. Because many garbage bins have been damaged by them.

D. Because they’re threatening the survival of trees and other plants.

2.What are people doing to get rid of the flying foxes?

A. Shooting them.　　 B. Making loud noises.

C. Shaking the trees hard.　　 D. Cutting some trees down.

3.Which of the following can replace the underlined “agitate” in Paragraph 3?

A. excite　　 B. kill

C. disturb　　 D. discourage

4.What does the writer imply from the last paragraph?

A. The bats will still stay in the gardens.

B. Some other areas will have to deal with the bats.

C. The grey-headed flying fox often eats trees.

D. The damage caused by the bats is serious.

高二英语阅读理解中等难度题查看答案及解析

Sydney's Royal Botanic Gardens are to start a war on gray-headed flying foxes. These super bats have invaded one of Australia’s most famous public spaces. Officials have said the animals are destroying trees and have to move on.

These unwanted guests at Sydney’s Royal Botanic Gardens look like tiny foxes with wings. Officials have estimated there are about 11,000 of them living in the picturesque harbor-side park. After inspecting damage to dozens of trees they now believe there are twice as many as previously thought. Branches have been breaking under the weight of these furry invaders and their droppings have been poisoning plants.

Help may well be at hand, however, in the shape of the ordinary garbage bin. The gardens’ director Dr. Tim Entwistle hopes the unpleasant sounds of crashing bin lids will agitate the flying foxes and force them to move on. “The way to disturb them is to use noises, so we’ve used the loud noises made by rubbish bins in the past. You can also use speakers as long as you move the noise around, and what we’ll do is have a series of noises, at the beginning and end of the day. What we’ve found in the past is that the flying foxes leave the gardens and go somewhere else,” said Tim.

The gray-headed flying fox is Australia’s largest bat. It flies around at night using its eyes and a powerful sense of smell to search for fruit and flowers. Officials at the Royal Botanic Gardens in Sydney have said they’re optimistic the unwelcome colony can be uprooted. If and when the bats do move to other parts of the city they will of course then become someone else’s problem.

1.According to the passage, Why do people want to get rid of the flying foxes ?

A.Because the garden are important public places.

B.Because they are polluting the city.

C.Because many garbage bins have been damaged by them.

D.Because they’re threatening the survival of trees and other plants.

2.In order to get rid of the flying foxes, what are people doing?

A.They are shooting them.

B.They are using rubbish containers.

C.They are shaking the trees hard.

D.They are cutting some trees down.

3.Which of the following can replace the underlined “agitate” in Paragraph 3?

A.Excite B.kill

C.disturb D.discourage

4.What does the writer imply from the last paragraph?

A.The bats will still stay in the gardens.

B.Some area will have to deal with the bats.

C.The grey-headed flying fox often eat trees

D.The damage caused by the bats is serious

高二英语阅读理解中等难度题查看答案及解析

This kind of ___ can not only run on the road but also fly in the sky.

A. the car               B. a car                C. car              D. cars

高二英语单项填空简单题查看答案及解析

At night, bats fly through the air, catching hundreds of insects and other small animals. But during the day, they hardly move at all. Instead, bats pass the time hanging upside down from a secret spot.

There are a couple of reasons why bats rest this way. First of all, it puts them in a position for takeoff. Unlike birds, bats can’t fly into the air from the ground. Their wings don’t produce enough lift to take off from a dead stop, and their hind legs are so small and underdeveloped that they can’t run to build up the necessary takeoff speed. Instead, they use their front claws to climb to a high spot, and then fall into flight.

During the hours when most enemies are active, bats gather where few animals would think to look and most can’t reach. This allows them to disappear from the world until night comes again. There’s also little competition for these resting spots, as other flying animals don’t have the ability to hang upside down.

Bats have a unique physiological adaptation that lets them hang around this way without using any energy. For you to hold your fist around an object tight, you contract（紧缩）several muscles in your arm, which are connected to your fingers by tendons（腱）；as one muscle contracts, it pulls a tendon, which pulls one of your fingers closed. A bat’s talons（爪）close in the same way, except that their tendons are connected only to the upper body, not to a muscle. To hang upside down, a bat pulls its claws open with other muscles. To get the talons to take hold of the surface, the bat simply lets its body relax. The weight of the upper body pulls down on the tendons connected to the talons, causing them to hold tight. Therefore, the bat doesn’t have to do anything to hang upside down.

1.Bats hang upside down because________．

A. they haven’t developed a pair of strong claws   B. they can’t start to fly from the ground directly

C. they have no hind legs to support their body    D. they can’t find quiet places to stay during the day

2.The third paragraph tells us that bats’ hanging upside down_______.

A. is to save their energy for night movement      B. is a way to fight against flying animals

C. is a great way to hide from danger             D. is a skill to compete for the flying places

3.Why can bats hang upside down easily?

A. Because their upper body is light.

B. Because they have strong muscles.

C. Because their talons are linked to muscles tightly.

D. Because their tendons are linked to their upper body.

4. What is the passage mainly about?

A. The living habits of bats.             B. How and why bats hang upside down.

C. The importance of bats’ hanging upside down.    D. How bats use their energy at night.

高二英语阅读理解简单题查看答案及解析

______is known to us all, only the theory ______ on practice can be practical.

A．Which; base       B．Which; based      C．As; based         D．As; basing

高二英语单项填空中等难度题查看答案及解析

He is the only man ______ I can find for the work.

A. as      B. whose       C. that        D. which

高二英语单项填空中等难度题查看答案及解析

Mom used only half of the money, the rest of which ______ saved for other purposes.

A. is                 B. are              C. was              D. were

高二英语单项填空困难题查看答案及解析

Words are the tools through which we can heal or destroy. They are weapons that hurt people as well as magical sticks that repair everything.1.

Good words are encouraging words, caring and loving words, powerful words etc. To fill someone’s wound, the good words should be used. So, just say, good things are going to happen. I am always with you. You can make it.

Good words have healing power.2. The author uses healing and powerful words, which affects the core of our heart. Don’t use painful words which hurt people. Your words can lift or drop anyone.

3. Bad words are discouraging words, painful words, fearful words, and words can destroy the future and our relationships. Therefore, we should learn to take words seriously, because they can determine whether we have good feelings or bad feelings, and decide how we get along with the others.

To avoid hurting others with your words, you’d better speak the way you want others to speak to you. Whatever you say and whoever you’re speaking to, be aware of your words.4. While they are speaking, they never take any time to reflect on what effect their words are putting on others. How we speak to others decides how far our relationship will go. So be aware of your words.

5. Therefore, we must learn to use words properly to explain what we mean to say.

A. Now what are bad words?

B. The same sentences apply for other purposes as well.

C. But sadly, nowadays people speak without thinking.

D. All in all, a proper word says a lot than to speak lots of words uselessly.

E. When we read motivational books, the book motivates us by its words.

F. So in our language words need to be good because our •words tell about us.

G. When you involve in an argument, remember that no one has won in argument.

高二英语七选五中等难度题查看答案及解析

Whales live in the ocean, but they are not fish. They are warm-blooded mammals and must have air to breathe. The babies are born alive and drink milk from the mother's body. It took millions of years for the whale to develop as it is today.

Every spring groups of whales swim hundreds of kilometers to warm places to bear their young. Each group goes to the same place every year. The mothers take very good care of their babies. The fully grown whales are very gentle and playful with each other, and with humans. They “talk” to each other with a high noise that  sounds beautiful. This“talking” can be heard for more than 300 kilometers in open waters.

Yet humans kill over a hundred whales a day. They kill them to make whale oils and a lot of other things. Killing them is a modern business with modern machines and even harpoons( 鱼叉炮) that explode( 爆炸) inside the whales. A whale dies very slowly and in great pain. Some ships kill every whale they can find, even the mothers and babies. Then there are no young whales to grow up or to bear more young.

1.A commonly mistaken belief is that ____.

2.In the passage “mammals” refer to ____.

3.Every spring each group of whales ____.

4.When whales talk, it sounds like ____.

5.Every year humans kill ____ all over the world.

高二英语阅读理解中等难度题查看答案及解析