Some plants get so hungry that they eat flies...

Some plants get so hungry that they eat flies, spiders, and even small frogs. What’s more amazing is that these plants occur naturally (in special environments) in every state. In fact, they’re found on every continent except Antarctica.

You’ve probably seen a Venus’ flytrap. It’s often sold in museum gift stores, department stores, and even supermarkets. A small plant, it grows 6 to 8 inches tall in a container. At the end of its stalks (茎) are specially modified leaves that act like traps. Inside each trap is a lining of tiny trigger hairs. When an insect lands on them, the trap suddenly shuts. Over the course of a week or so, the plant feeds on its catch.

The Venus flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International carnivorous (食肉的) Plant Society’ s Newsletter. Note: Despite any science-fiction stories you might have read, no meat-eating plant does any danger to humans.

Dr. Meyers-Rice says a plant is meat-eating, only if it does all four of the following “attract, kill, digest, and absorb” some from of insects, including flies, butterflies, and moths. Meat-eating plants look and act like other green plants -- well, most of the time.

All green plants make sugar through a process called photosynthesis (光合作用). Plants use the sugar to make food. What makes “meat-eating” plants different is their bug-catching leaves. They need insects for one reason: nitrogen. Nitrogen is a nutrient that they can’t obtain any other way. While almost all green plants on our planet get nitrogen from the soil, “meat-eating” plants can’t. They live in places where nutrients are hard or almost impossible to get from the soil because of its acidity. So they’ve come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soil is poisonous to “meat-eating” plants. Never fertilize them! But don’t worry, either, if they never seem to catch any insects. They can survive, but they’ll grow very slowly.

1.According to the passage, carnivorous plants ________.

A.only grow in wild field B.are rare to see

C.are as common as flies D.cannot grow on Antarctica

2.Venus flytrap preys on insects with ________.

A.its numerous long an thin stalks B.a container where it grows

C.its insect-catching leaves D.the lining of tiny trigger hairs

3.We can conclude from the third paragraph that ________.

A.carnivorous plants are dangerous

B.carnivorous plants are fictional

C.carnivorous plants occasionally eat book

D.carnivorous plants are harmless to humans

4.In the eyes of the author, which of the following statements is TRUE?

A.Carnivorous plants cannot grow in acid soil

B.Carnivorous plants can grow in nutrient-poor soil

C.Carnivorous plants will die if they cannot catch any insects

D.Carnivorous plants can get nitrogen from nutrient-rich soil

高三英语阅读理解中等难度题查看答案及解析

Some plants get so hungry they eat flies, and small frogs. What’s more amazing is that these plants occur naturally (in special environments) in every state. In fact, they’re found on every continent except Antarctica.

You’ve probably seen a Venus’ flytrap. It’s often sold in museum gift stores, department stores, and even supermarkets. A small plant, it grows 6 to 8 inches tall in a container. At the end of its stalks(茎)are leaves that act like traps. Inside each trap is a lining of tiny hairs. When an insect lands on them, the traps suddenly shut. Over the course of a week or so, the plant feeds on its catch.

The Venus’ flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society’s Newsletter. He states despite any science-fiction stories you might have read, no meat-eating plant does any danger to humans.

Dr. Meyers-Rice says a plant is meat-eating, only if it does all four of the following: “attract, kill, digest, and absorb” some form of insects. Meat-eating plants look and act like other green plants—well, most of the time.

All green plants make sugar to produce food. What makes meat-eating plants different is their special leaves, which need insects for one reason: nitrogen(氮). Nitrogen is a nutrient(营养物质) that they can’t obtain any other way. Why?

Almost all green plants on our planet get nitrogen from the soil. Meat-eating plants can’t. They live in places where nutrients are hard or almost impossible to get from the soil because of its acidity .So they’ve come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soil is poisonous to meat-eating plants. Never fertilize(施肥) them! But don’t worry, either, if they never seem to catch any insects. They can survive, but they’ll grow very slowly.

1.According to the passage, Venus flytrap　　　　 .

A. is a small plant which grows in a container

B. is a kind of plant which gets hungry easily

C. can trap and feed on some form of insects

D. grows 6-8 inches tall

2.From the passage, we can infer that 　　　　 .

A. meat-eating plants are found nowhere else except Antarctica

B. All green plants get nitrogen from the soil

C. meat-eating plants endanger humans in science-fiction stories

D. The nutrient-poor soil is beneficial to meat-eating plants

3.Meat-eating plants grow very slowly, 　　　　 .

A. so you’d better fertilize them

B. probably because the supply of nitrogen is cut off

C. simply because they can’t absorb nitrogen from the soil

D. and then they will die slowly

4.Which of the following is true?

A. Meat-eating plants look and act like other green plants.

B. It’ hard to get nutrients in the soil when acidity is high.

C. Venus flytrap eats flies to get nutrient from them.

D. Green plants make sugar at night.

高三英语阅读理解中等难度题查看答案及解析

Some plants get so hungry they eat flies, and even small frogs. What's more amazing is that these plants occur naturally (in special environments) in every state. In fact, they're found on every continent except Antarctica.

You've probably seen a Venus' flytrap -- a small plant, which grows 6 to 8 inches tall in a container. At the end of its stalks (茎) are leaves that act like traps (陷阱). Inside each trap is a lining of tiny hairs. When an insect lands on them, the traps suddenly shut. Over the course of a week or so, the plant feeds on its catch.

The Venus' flytrap is just one of more than 500 species of meat-eating plants, says Barry Meyers-Rice, the editor of the International Carnivorous Plant Society's Newsletter. He states although you might have read some science-fiction stories, no meat-eating plant does any danger to humans.

Barry says a plant is meat-eating, only if it does all four of the following: "attract, kill, digest, and absorb" some form of insects. Meat-eating plants look and act like other green plants -- well, most of the time.

All green plants make sugar to produce food. What makes meat-eating plants different is their special leaves, which need insects for one reason: nitrogen (氮). Nitrogen is a nutrient that they can't obtain any other way. Why?

Almost all green plants on our planet get nitrogen from the soil. Meat-eating plants can't. They live in places where nutrients are hard to get from the soil because of its acidity. So they've come to rely on getting nitrogen from insects and small animals. In fact, nutrient-rich soft is poisonous to meat-eating plants. Never fertilize (施肥) them! But don't worry, either, if they never seem to catch any insects. They can survive, but they'll grow very slowly.

1.According to the passage, a Venus' flytrap ______.

A．is a small plant which grows in a container

B．is a kind of plant which gets hungry easily

C．can trap and feed on some form of insects

D．can only grow 6-8 inches tall

2.From the passage, we can infer that ______.

A．meat-eating plants are found nowhere else except Antarctica

B．all green plants get nitrogen from the soil

C．meat-eating plants endanger humans in science-fiction stories

D．the nutrient-poor soil is beneficial to meat-eating plants

3.Meat-eating plants grow very slowly, ______.

A．so you'd better fertilize them

B．probably because the supply of nitrogen is cut off

C．simply because they can't absorb nitrogen from the soil

D．and then they will die slowly

4.Which of the following is true?

A．Meat-eating plants look and act like other green plants.

B．It's hard to get nutrients in the soil when acidity is high.

C．The Venus' flytrap eats flies to get nutrient from them.

D．Green plants make sugar at night.

高三英语阅读理解困难题查看答案及解析

Food makes us feel good, but some people eat when they aren’t really hungry and eat to simply feel good. This kind of eating habit is called emotional eating, which does not affect adults but also young children. It isn’t a good thing.

A child’s eating habits can develop right from childhood. As we know, a baby cries out if he doesn’t get milk at the usual time of the day. However, sometimes parents immediately stick a bottle in a child’s mouth without trying to find out if the child is really hungry. In fact, children may cry for other reasons. Even as children grow up and start going to school, parents sometimes give them a chocolate bar if they become really unhappy. As the children further grow up, they may become used to having a snack whenever they’re upset or low.

Therefore, they’d like to eat an emotional snack when they have the feeling of unhappiness and boredom. Even when they don’t get high grades, aren’t popular at school or made fun of by others, they will want something to eat. After having the snack, they feel a lot better.

Emotional eating in young children is a thing that needs to be taken seriously. To protect your children from emotional eating, you should satisfy your child’s emotional needs in the best possible way. This includes spending time with your child every day, taking an interest in his school work, helping your child study, providing a health environment without tension at home, etc. Don’t make the child lose face by scolding him. Develop confidence in your child. Make your child eat enough once in a while. Reward him for his achievements.

All this will help your little one develop a healthy eating habit. And always remember love and care is the key to help you child out of trouble and grow up happily.

Title: 　　 1.　　 in Young Children

高三英语填空题中等难度题查看答案及解析

Food makes us feel good, but some people eat when they aren’t really hungry and eat to simply feel good. This kind of eating habit is called emotional eating, which does not affect adults but also young children. It isn’t a good thing.

A child’s eating habits can develop right from childhood. As we know, a baby cries out if he doesn’t get milk at the usual time of the day. However, sometimes parents immediately stick a bottle in a child’s mouth without trying to find out if the child is really hungry. In fact, children may cry for other reasons. Even as children grow up and start going to school, parents sometimes give them a chocolate bar if they become really unhappy. As the children further grow up, they may become used to having a snack whenever they’re upset or low.

Therefore, they’d like to eat an emotional snack when they have the feeling of unhappiness and boredom. Even when they don’t get high grades, aren’t popular at school or made fun of by others, they will want something to eat. After having the snack, they feel a lot better.

Emotional eating in young children is a thing that needs to be taken seriously. To protect your children from emotional eating, you should satisfy your child’s emotional needs in the best possible way. This includes spending time with your child every day, taking an interest in his school work, helping your child study, providing a health environment without tension at home, etc. Don’t make the child lose face by scolding him. Develop confidence in your child. Make your child eat enough once in a while. Reward him for his achievements.

All this will help your little one develop a healthy eating habit. And always remember love and care is the key to help you child out of trouble and grow up happily.

Title: 　　 1.　　　　 in Young Children

高三英语填空题中等难度题查看答案及解析

Animals seem to have the sense to eat when they are hungry and they do not eat more than their bodies need．It has been demonstrated（证明）that rats will, when given a choice over a period of time, prefer water with vitamins(维生素) to water without vitamins even though there is no difference in taste or smell between the two water bottles．When a fragrant（香的）flavor（作料）was added to the vitamin-enriched water, the rats did seem to prefer it and kept drinking it ,even after the vitamins were switched to the clear water．In time, however, they broke the habit and went back to where the necessary vitamins were．

In a classic experiment, babies of 6 to 12 months old were placed in a cafeteria（自助） feeding arrangement, with a wide selection of baby food before them．They were given whatever food they pointed to or appeared interested in．We are told that at first they showed some unusual eating patterns, but that over a period of time they managed to select well-balanced diet．

So, in choosing food, rats and babies do seem to know and act on what's best for them．Apparently, there is a kind of “body wisdom”, which humans soon lose．Most of us do not eat as wisely as we could．Many of our food preferences are culturally determined and influenced by long-formed habits．Some people eat fox, dog and blackbirds, while we eat cows and pigs．So what people eat and how much they eat seems to be greatly influenced by what is going on around them．

1.In the experiment on rats, a fragrant flavor was added to the rats’ drinking water to _____________ .

A．encourage rats to drink vitamins-enriched water

B．test whether rats know which drink is good for them

C．find out rats’ preference in flavor

D．demonstrate the vitamins are tasteless

2.According to the passage ,adults eating habits differ from those of babies because_________．

A．adults know better than babies what kind of food are good for their health

B．adults usually cannot resist the temptation of various delicious foods

C．adults have more choices of food than babies in eating patterns

D．adults' eating habits are closely related to the social and cultural customs

3.The author implied in the passage that most of us_________．

A．eat a balanced diet

B．choose the food that is of nutrition

C．have the habits influenced by the surroundings

D．like to eat the food with a fragrant flavor．

4.As far as their eating habits are concerned, babies and rats are similar in that_________．

A．both prefer flavored food and drink

B．both have the wisdom to choose a balanced diet

C．both have the same eating patterns

D．both develop a taste for the same kinds of flavors

高三英语阅读理解中等难度题查看答案及解析

Some students get so nervous before a test, and they do poorly even if they know the material. Sian Beilock has studied these highly anxious test-takers.

Sian Beilock: “They start worrying about the consequences. They might even start worrying about whether this exam is going to prevent them from getting into the college they want. And when we worry, it actually uses up attention and memory resources. I talk about it as your cognitive horsepower that you could otherwise be using to focus on the exam.”

Professor Beilock and another researcher, Gerardo Ramirez, have developed a possible solution. Just before an exam, highly anxious test-takers spend ten minutes writing about their worries about the test.

Sian Beilock: “what we think happens is when students put it down on paper , they think about the worst that could happen and they reassess the situation. They might realize it’s not as hard as they might think it was before and, in essence, it prevents these thoughts from popping up when they’re actually taking a test.”

The researchers tested the idea on a group of twenty anxious college students. They gave them two short math tests. After the first one, they asked the students to either sit quietly or write about their feelings about the upcoming second test.

The researchers added to the pressure. They told the students that those who did well on the second test would get money. They also told them that their performance would affect other students as part of a team effort.

Professor Beilock says those who sat quietly scored an average of twelve percent worse on the second test. But the students who had written about their fears improved their performance by an average of five percent.

Next, the researchers used younger students in a biology class. They told them before final exams either to write about their feelings or to think about things unrelated to the test.Prefessor Beilock says highly anxious students who did the writing got an average grade of B+, compared to a B- for those who did not.

Sian Beilock: “What we showed is that for students who are highly test-anxious, who’d done our writing intervention, all of a sudden there was no relationship between test anxiety and performance. Those students most likely to worry were performing just as well as their classmates who don’t normally get nervous in these testing situations.”

But what if students do not have a chance to write about their fears immediately before an exam or presentation? Professor Beilock says students can try it themselves at home or in the library and still improve their performance.

1.What may happen if students have the problem of test anxiety?

A．Test anxiety can improve students’ performance to some degree.

B．Students’ attention and memory resources run out when worried.

C．Students may not be admitted into their favorite college if worried

D．Test anxiety is sure to cause students to fail the test.

2.Which of the following is TRUE?

A．The result in the math test agrees with that in the biology test.

B．In the first math test, students who sat quietly performed better.

C．In the second math test, students who wrote about their feelings did worse.

D．Some college students are highly anxious test-takers while others are not..

3.What does the underlined phrase “popping up” mean?

A．Giving out                             B．Fading away

C．Becoming clear                         D．Appearing suddenly

4.What is the main idea of the passage?

A．It is a common practice for students to get worried before a test.

B．Being worried before tests does harm to students’ performance.

C．Anxious students overcome test anxiety by writing down fears.

D．It is important for students to overcome test anxiety.

高三英语阅读理解中等难度题查看答案及解析

Companion planting is the idea that when some crops are planted together, they help each other grow. The compatible plants generally have similar needs for nutrients, soil and moisture.

Advice for companion plantings is sometimes based more on tradition than proof. But Fabian Fernandez at the University of Illinois says there is evidence for some combinations. These can lead to better crops, reduce disease and help with pest control by attracting helpful insects. For example, some kinds of soil bacteria take nitrogen(氮) from the air and make a form that plants can use. The plants keep the nitrogen in their roots.　 Legumes(豆类) are especially good at this. Any crops sharing the same space can get the nitrogen as the roots decompose(腐烂).

Crops like beans and potatoes, carrots and cabbages, beans and rice can also share territory well because their roots reach different levels in the soil. Deep-rooted vegetables get nutrients and moisture from lower down, so they do not compete with shallower plants. But some plants placed together may harm each other's development. For example, tomatoes do not like wet soil but watercress does, as the name suggests. So you would probably not want to put them together.

Even after harvest, some kinds of produce should be kept apart. Apples, for example, release ethylene gas,a plant hormone. It can cause other foods to ripen(成熟)too quickly. Markets often separate high ethylene-producing foods from those that are sensitive to the gas. But sometimes you might want them together. For example, if you put an apple in a bag with a green banana, the banana will be ready to eat sooner.

Now what about peaches, plums and nectarines that are too firm to eat? Growers in California answer this question at eatcaliforniafruit.com. They say an apple,a banana or a riper piece of fruit is not needed. The peaches, plums and nectarines themselves release enough of the gas to ripen successfully.

Here's their advice: place the fruit in afruit bowl or in a paper bag with the top folded over. Keep the fruit at room temperature. When the fruit is soft enough to your liking, either use it or place it in a refrigerator to stop further ripening.

1.What are the basic needs for companion planting?

A. Good old companions.　　 B. Some kinds of soil bacteria.

C. Nutrients, soil and moisture.　　 D. Helpful insects.

2.What does the underlined sentence in Paragraph 2 most probably mean?

A. To some extent, companion planting relies more on traditional experience.

B. In the field of companion planting, proof always speaks louder than tradition.

C. Traditional experience is much less reliable than scientific experiments.

D. Scientific researches have thrown light on the theory of companion planting.

3.According to the text, which group of plants are not suitable to be planted together?

A. Beans and potatoes.　　 B. Tomatoes and watercress.

C. Carrots and cabbages.　　 D. Beans and rice.

4.What can be inferred from the last two paragraphs?

A. We should choose fruit from markets as often as possible.

B. The peaches, plums and nectarines should always be put together to get riper.

C. The fruit in afruit bowl or in a paper bag should be eaten as soon as possible.

D. We should not place any ripening fruit out in direct sunlight.

高三英语阅读理解中等难度题查看答案及解析

They eat only plant foods, and take care to ________ animal products from other areas of their lives．

A．contain　　　　 B．maintain

C．exclude　　　　 D．Include

高三英语单项填空中等难度题查看答案及解析

They eat only plant foods, and take care to ________ animal products from other areas of their lives．

A． contain　　　　 B． maintain

C． exclude 　　　　 D． Include

高三英语单项填空困难题查看答案及解析