Cats like climbing trees and there are logica...

Cats like climbing trees and there are logical reasons behind this behavior. Interestingly, due to some of their physical features, cats will meet trouble getting down from the trees after climbing up, which may seem unusual.

There are several reasons why cats climb trees, mostly to do with defensive purposes. Cats, as predators(捕食者), like to understand their environment well. As they are small animals, their scope of vision is considerably smaller. Cats often climb trees to get a better view of their surroundings to help them see any potential dangers.

While cats are predators, they are also easy to get attacked from larger animals, such as dogs or even other cats. A tree often provides a safe hiding place. In the wild, cars climb up trees to give them a resting or napping place that is out of predators’ range. It also helps disguise their presence.

Some cats may climb trees for fun, on occasion, or possibly to work on improving their climbing abilities. Small cats frequently test out their claw skills by trying to climb up anything and everything, from bookcases to trees to a person’s leg. Climbing practice is good for cats; it can improve their strength and flexibility and teach them an important defensive skill.

If a cat has gotten up a tree and cannot get down, the owner may wonder why its remarkable climbing abilities only work in one direction. A cat’s claws curve inward, allowing it to grip onto surfaces while going up head first. Unfortunately, this useful climbing curve does nothing to help the animal get back down again.　

Eventually, most trapped cats will either jump out of the tree or realize that they can get down by going tail first. Either way, a cat up a tree is usually nothing to worry about; they are intelligent animals and will figure out how to get down sooner or later.

1.According to the text small cats like to climb a person’s leg to______.

A. Show love to the person

B. Test out their claw skills

C. Avoid the attack from the dog

D. Get food from a person’s hand.

2.Why do cats have trouble getting down from a tree?

A. They are afraid of height.

B. They are easy to get lost in a tree.

C. They don’t know how to jump off a tree.

D. Their climbing ability doesn’t help when climbing down.

3.What should you do when you see a cat trapped in a tree?

A. Just let it alone.

B. Lead it down patiently.

C. Teach it the right way to get down.

D. Watch it closely until it comes down.

4.What does this text mainly talk about.

A. Why cats like to climb trees.

B. Why cats can’t climb down a tree.

C. How cats manage to climb down a tree.

D. What owners do to help cats down a tree.

高二英语阅读理解困难题查看答案及解析

Trees should only be pruned (修剪) when there is a good and clear reason for doing so and , the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.

First, pruning may be done to make sure that trees have desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches, which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut out diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the center and so preventing the free movement of air.

One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease , but it is a wound that will heal (愈合). Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce that risk of death as far as possible. It is important to make the area, which has been pruned, smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hours and then paint it with one of the materials available from garden shops produced especially for this purpose. Pruning is usually done in winter , for then you can see the shape of the tree clearly without interference (妨碍) from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly .

1.．Why should pruning be done?

A．To make the tree grow taller.        B．To improve the shape of the tree.

C．to get rid of the small ranches .    D．To make the small branches thicker.

2.．Trees become unhealthy if the gardener__________.

A. giving a tree a special shape and a definite height

B. removing small side branches and making a tree look less thick

C. allowing too many branches to grow in the middle

D. having a tree surrounded by many other trees

3.．Why is a special material painted on the tree?

A．To help a wound to dry.      B．to cover a rough surface.

C．To make a wound smooth.      D．To prevent disease entering a wound.

4.．A good gardener prunes a tree _________ .

A．several times throughout the year    B．as quickly as possible

C．occasionally when necessary          D．regularly every winter

5.．What was the author’s purpose when writing this passage?

A．To discuss different methods of pruning.

B．To introduce some common knowledge of pruning.

C．To explain how trees develop disease.

D．To give practical instruction for pruning a tree.

高二英语阅读理解简单题查看答案及解析

（题文）Why are the speakers putting off their picnic?

A. There are cats and dogs outside.

B. It is raining heavily.

C. They have no time.

高二英语短对话简单题查看答案及解析

—Tom, if it doesn’t rain, we can go climbing and have a picnic there.

— ________ I like  climbing.

A．Well done         B．That’ s great.     C．No problem        D．That’s it

高二英语单项填空中等难度题查看答案及解析

All over the world, and for many different reasons, there are millions of people who rarely or never eat meat. These people are called vegetarians. To people who eat meat, being a vegetarian may seem like a very strange thing, diets for several different reasons.

First, vegetarians have an enormous health advantage. One of the major health problems in modern societies is not too much protein but too much fat, especially in the form of animal fats. Medical evidence suggests that animal fats, including butter, contribute to the development of cholesterol in the human body. High amount of cholesterol seem to be part of the cause of heart disease. Most vegetarians have low level of cholesterol. High amounts of animal fats also seem to lead to certain kinds of cancer, and vegetarians are typically less vulnerable to these cancers than people who eat a lot of meat. Overall, studies comparing the health of vegetarians and meat-eaters show that the meat-eaters are twice as likely to die of heart disease as vegetarians are.

Better health is one reason that people choose to become vegetarians. Another reason is religion. Some religions forbid the eating of meat. The largest of these is the Hindu religion, which has about 600 million believers in the world. Although not all Hindus are vegetarian, many are, and there are many believers of other religions such Buddhism and even some Christian religions that also do not eat meat.

Many vegetarians do not eat meat simply because they do not like the taste of it. They have no religious or philosophical reasons; they just do not like meat. Another important reason that vegetarians give for not eating meat is the health advantages that were given above. Lastly, there are many people who do not eat meat because they just do not like the idea of killing animals for food. They believe that life, all life, is valuable , and that we do not have to destroy life to feed ourselves when there are other good sources of food.

1.According to the passage, people choose to be vegetarians for the following reasons EXCEPT________.

A．they want to stay healthy

B．they are too kind to put the idea of killing animals

C．they live in areas where meat supply is not adequate

D．they should not eat meat due to their religious belief

2.Which of the following is true according to Paragraph 2 ?

A．Vegetarians enjoy a more healthy life than the meat eaters.

B．Heart disease and cancer are caused by large amounts of protein.

C．There are twice as many meat-eaters as vegetarians who die of cancer.

D．There are less health problems in modern society due to advanced medical care.

3.What does “vulnerable” mean in Paragraph 2?

A．Having low level of cholesterol.

B．Having high level of cholesterol.

C．Having weak ability to resist diseases and harms.

D．Having strong ability to resist disease and harms.

4.It can be inferred from the passage that __________.

A．being a vegetarian may be a very strange thing

B．vegetarians eat meat on some special occasions

C．all vegetarians have reasons for their not eating meat

D．most vegetarians believe that life without meat is happy.

高二英语阅读理解中等难度题查看答案及解析

It is reported that there are various reasons _____more and more people feel depressed at this time of year.

A. why      B. when    C. what     D. how

高二英语单项填空简单题查看答案及解析

There are many reasons why people can’t get a good night’s sleep and as with any other health conditions, things are not likely to improve until you find a way to break the cycle.

1..

Worry and stress

We have all been kept awake by many factors that cause worry and stress in our lives. Money problems, relationship issues and work stresses can have you sitting up all night.

2.. Keep a pen and paper next to your bed and before you go to sleep, write down your thought and worries, create a to-do list for the following day or set down solutions and ideas that relate to work.

Diet and eating patterns

What and when you eat can have a major impact on your ability to sleep. 3.. These foods take a long while to digest and the after effects of indigestion and heartburn are not going to set you up well for a good quality sleep.

Alcohol and caffeine

Tea, coffee and energy drinks contain caffeine that helps to stimulate the nervous system and make you more alert, which is great if you need a pick-me-up. Dosing up on caffeine during the day can affect your ability to sleep later on in the evening. Alcohol is a double-edged sword when it comes to sleep. 4..

5.

“Your bedroom should be dark once the lights are switched off because melatonin, a sleep-regulating hormone, is very light-sensitive. Maintaining the right temperature can also help with sleep as a room that is too hot may prevent your core temperature from going down, which is essential for switching on the sleep mechanism within the body.

A. Bedroom light

B. Bedroom environment

C. The following are some ways to improve the situation

D. A useful habit is to download your thoughts at the end of the day

E. These are some of the main factors that need to be addressed

F. Eating too late or taking in a rich or spicy meal can keep you awake

G. While a little may help to result in sleep, even in small amounts it can cause broken sleep patterns

高二英语七选五中等难度题查看答案及解析

There are many reasons why people can’t get a good night’s sleep and as with any other health conditions, things are not likely to improve until you find a way to break the cycle.

These are some of the main factors that need to be addressed.

Worry and stress

We have all been kept awake by many factors that cause worry and stress in our lives. Money problems, relationship issues and work stresses can have you sitting up all night. A useful habit is to download your thoughts at the end of the day. Keep a pen and paper next to your bed and before you go to sleep, write down your thought and worries, create a to-do list for the following day or set down solutions and ideas that relate to work.

Diet and eating patterns

What and when you eat can have a major impact on your ability to sleep. Eating too late or indulging in a rich or spicy meal can keep you awake. These foods take a long while to digest and the after effects of indigestion and heartburn are not going to set you up well for a good quality sleep.

A research suggests that both calcium and magnesium may be linked to poor sleep. Even low intakes of magnesium found in green vegetables, beans, nuts and seeds have been shown to make it harder to stay asleep. Calcium is found in dairy foods, soybeans and green vegetables and low levels have also been shown to make it more difficult to nod off.

Alcohol and caffeine

Tea, coffee and energy drinks contain caffeine that helps to stimulate the nervous system and make you more alert, which is great if you need a pick-me-up. Dosing up on caffeine during the day can affect your ability to sleep later on in the evening. Try limiting your intake of caffeine to the morning and switch to decaffeinated options such as herbal teas. Alcohol is a double-edged sword when it comes to sleep. While a little may help to induce slumber, even in small amounts it can cause fragmented sleep patterns.

Bedroom environment

“Your bedroom should be dark once the lights are switched off because melatonin, a sleep-regulating hormone, is very light-sensitive. Maintaining the right temperature can also help with sleep as a room that is too hot may prevent your core temperature from going down, which is essential for switching on the sleep mechanism within the body.

1.Which of the following is TRUE according to the passage?

A. Melatonin is a chemical in our bodies that disturbs our sleep.

B. The lower the temperature is, the easier you will find it to sleep.

C. Drinking a little coffee in the morning may not affect your sleep at night.

D. You should eat more vegetables and wholegrains for supper to get a better sleep.

2.The passage can be found in the column of ________ in a newspaper.

A. Science　　 B. Health　　 C. Fashion　　 D. Education

高二英语阅读理解简单题查看答案及解析

课文背诵，用所背段落的单词填空。

Art is1._________ by the customs and2._________ of a people.

There are various reasons 3.________ people write poetry. Some poems tell a story or4._________ something in a way that will give the reader a strong5.________. Others try to6._________ certain emotions. Poets use many different forms of poetry to express7.________.

There is no doubt that the earth is becoming warmer see 8._________ and that it is9._________ that has caused this global warming rather than a10._________ but natural…

高二英语语法填空中等难度题查看答案及解析

There are ______ flowers and trees shown in the park and_______ people go to have a look.

A.plenty of; much B.various; many

C.varieties of; various of D.quite a few; quite a little

高二英语单项填空中等难度题查看答案及解析