Some plants are so difficult to grow that the...

Some plants are so difficult to grow that they can only ______ in a perfectly clean environment.

A. communicate　　 B. exchange

C. survive　　　　 D. afford

高一英语单项填空简单题查看答案及解析

Algae(水藻) are very simple plants. They grow in fresh water or salty water. Seaweed is algae that grow in salty water. Seaweed is red or brown in color. The Japanese people use these plants from the sea in many ways. From it, they make a food called Kombu. Kombu is seaweed that has been dried, cooked and pressed together. Then it is dried again and cut into long pieces. The Japanese eat a lot of Kombu and like it very much.

Japanese farmers often use seaweed as fertilizer. It makes their plants grow better. Many farmers also find seaweed makes a fine food for their animals.

From seaweed the Japanese also get iodine(碘), which they sell to other countries. Iodine is used in many ways all over the world. It is used in making medicine. It is added to the salt we use at the table. Scientists even use one form of iodine to “ seed clouds” when they want rain to fall.

1. Kombu is a kind of ____ according to the text.

A. plant         B. medicine          C. food        D. fertilizer

2.In the last sentence of the text, “seed clouds” means ____.

A.      clouds spreading like seeds

B.      the seeds like clouds

C.      to make rain fall with human power

D.      dropping seeds by clouds

3.The main idea of the story is that ____.

A.      The Japanese eat seaweed when they want rain to fall.

B.      Kombu is made into medicine for farmers.

C.      The Japanese use seaweed in many ways.

D.      The Japanese eat a lot of Kombu.

高一英语阅读理解简单题查看答案及解析

Many gardeners believe that “talking” to their plants helps them grow---it turns out that they may not be crazy after all. According to the scientists from the University of Exeter, plants may keep communicating with each other through a secret “unseen” language.

For their experiment, the scientists picked a cabbage plant that is known to send out a gas when its surface is cut. In order to get video evidence of the communication, they changed the cabbage gene by adding the protein---luciderase(虫荧光素酶), which is what makes fireflies(萤火虫) glow in the dark.

When the changed cabbage plant was in full bloom, they cut a leaf off with a pair of scissors, and almost immediately, thanks to the luciderase, they could see the plant sending out “methyl jasmonate(茉莉酸甲酯)”.

While this was a known fact, what was surprising was the fact that the minute this gas began to give out, the nearby cabbage plants seemed to sense some kind of danger and started to send out a gas that they normally have to keep predators(捕食者) like caterpillars(毛虫) away.

What the scientists are not sure is whether the plants are trying to warn the other leaves or the near plants about the danger---something that will require further research However, the team, which is led by Professor Nick Smirnoff, is quite excited about the findings because this is the first time it has been proved that plants do not live a passive life, but actually move, sense and even communicate with each other.

However, before you get all concerned, they are quite sure that plants do not feel the pain when they are cut, since they do not have nerves---so go ahead and bite into that juicy carrot!

1.What’s the best title of the passage?

A.　 Plants Can Send Some Gas

B.　 Plants Can Communicate with Each Other

C.　 The “Unseen” Language of Plants

D.　 Plants Can’t Feel Pain

2.What does the underlined word “they” in Paragraph 1 mean?

A.　 Gardeners　　　　　　 B.　 Plants

C.　 Scientists　　　　　　 D.　 Fireflies

3.When the plant sent out methyl jasmonate, which of the following statements is NOT TRUE?

A.　 The nearby cabbage plants seemed to sense some kind of danger.

B.　 The nearby cabbage plants started to send out a gas.

C.　 The nearby cabbage plants tried to warn the near plants.

D.　 The nearby cabbage plants communicated through a secret language.

4.According to the experiment, plants ________________.

A.　 don’t live a passive life

B.　 can feel pain when they are cut

C.　 can warn the other leaves about danger

D.　 can talk with each other

高一英语阅读理解中等难度题查看答案及解析

Many gardeners believe that “talking” to their plants helps them grow---it turns out that they may not be crazy after all. According to the scientists from the University of Exeter, plants may keep communicating with each other through a secret “unseen” language.

For their experiment, the scientists picked a cabbage plant that is known to send out a gas when its surface is cut. In order to get video evidence of the communication, they changed the cabbage gene by adding the protein---luciderase(虫荧光素酶), which is what makes fireflies(萤火虫) glow in the dark.

When the changed cabbage plant was in full bloom, they cut a leaf off with a pair of scissors, and almost immediately, thanks to the luciderase, they could see the plant sending out “methyl jasmonate(茉莉酸甲酯)”.

While this was a known fact, what was surprising was the fact that the minute this gas began to give out, the nearby cabbage plants seemed to sense some kind of danger and started to send out a gas that they normally have to keep predators(捕食者) like caterpillars(毛虫) away.

What the scientists are not sure is whether the plants are trying to warn the other leaves or the near plants about the danger---something that will require further research However, the team, which is led by Professor Nick Smirnoff, is quite excited about the findings because this is the first time it has been proved that plants do not live a passive life, but actually move, sense and even communicate with each other.

However, before you get all concerned, they are quite sure that plants do not feel the pain when they are cut, since they do not have nerves---so go ahead and bite into that juicy carrot!

1.What’s the best title of the passage?

A.　 Plants Can Send Some Gas

B.　 Plants Can Communicate with Each Other

C.　 The “Unseen” Language of Plants

D.　 Plants Can’t Feel Pain

2. What does the underlined word “they” in Paragraph 1 mean?

A.　 Gardeners　　　　　　 B.　 Plants

C.　 Scientists　　　　　　 D.　 Fireflies

3.When the plant sent out methyl jasmonate, which of the following statements is NOT TRUE?

A.　 The nearby cabbage plants seemed to sense some kind of danger.

B.　 The nearby cabbage plants started to send out a gas.

C.　 The nearby cabbage plants tried to warn the near plants.

D.　 The nearby cabbage plants communicated through a secret language.

4.According to the experiment, plants ________________.

A.　 don’t live a passive life

B.　 can feel pain when they are cut

C.　 can warn the other leaves about danger

D.　 can talk with each other

高一英语阅读理解中等难度题查看答案及解析

Sometimes they may play to passers-by in the street or subway so that they can earn some______ money for themselves or to pay for their instruments.

A. certain       B. extra     C. various      D. unusual

高一英语单项填空中等难度题查看答案及解析

Some children are too selfish today. They should be taught to _____things with others so that they will show concern for others.

A. show             B. give             C . share            D. enjoy

高一英语单项填空中等难度题查看答案及解析

Some office workers often go to the gym to _______ regularly so that they can keep fit.

高一英语单项填空简单题查看答案及解析

Malls are popular places for Americans to go to. Some people spend so much time at malls that they are called mall rats. Mall rats shop until they visit hundreds of stores.

People like malls for many reasons. They feel safe because malls have police stations. Parking is usually free. And the weather inside is always fine. The newest malls have beautiful rest places with waterfalls and large green trees.

The Mall of America in Minnesota is one of the most popular ones. It covers 4.2 million square feet. It has 350 stores, eight nightclubs, and a large park! There are parking spaces for 12,750 cars. About 750,000 people shop there every week.

The first indoor mall in the United States was built in 1965 in Edina Minnesota. People love doing all their shopping in one place. More malls are built around the country. Now malls are town centers where people come to do many things. They shop, and of course, they also eat in food courts that have food from all over the world. They see films at theaters. Some people even get their exercise by doing the new sport of “mall walking”. Others go to malls to meet friends.

In some malls, people can see a doctor and even go to church. In other words, people can do almost everything in malls. Now people can live in their favorite shopping centers in fact.

1.Mall rats usually _____.

A. shop after visiting lots of stores

B. spend lots of time at malls

C. buy nothing at malls

D. do almost everything in malls

2.Which of the following is NOT a reason why Americans like malls?

A. Personal safety. B. Free parking.

C. Low prices.　 　　 D. Pleasant weather.

3.Paragraph 3 mainly tells us that the Mall of America is very _____.

A. ordinary　 B. safe　　 C. beautiful　　 D. large

4.According to the text, people can do all the things in some malls EXCEPT _____.

A. seeing a doctor B. going to church

C. eating food　 　 D. go to school

5.What is this passage mainly about?

A. The safety in American malls.

B. The functions of American malls.

C. The popularity of American malls.

D. The similarity of American malls.

高一英语阅读理解中等难度题查看答案及解析

1.Sometimes the musicians may play to passers-by in the street or subway so that they can earn some extra money for themselves or to pay for their i_________.

2.The passers-by showed great m_________ to the beggars in the street on a cold night.

3.India has a national festival on October 2 to honor Mohandas Gandhi, the leader who helped gain India’s i__________ from Britain.

4.Weather p__________, we may go out and have a picnic.

5.I don’t think she’s ever f__________ me for lying to her that time.

6.You have to b__________ the advantages of living in the countryside against the disadvantages.

7.We a__________ the old scientist for his great contribution to the country.

8.I believe learning shouldn’t be l__________ to the textbooks.

9.Many people like the film because it has c__________ education with recreation.

10.The teacher told him not to s_________ over the failure of yesterday’s test.

高一英语单词拼写中等难度题查看答案及解析

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 environment) 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(触发) hairs. When an insect lands on them, the trap 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(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 forms 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(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 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.We can conclude from the third paragraph that ________.

A.carnivorous plants are dangerous

B.carnivorous plants are fictional

C.carnivorous plants occasionally eat books

D.carnivorous plants are harmless to humans

3.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.

高一英语阅读理解中等难度题查看答案及解析