. ______ it rains when we can’t find a place ...

. ______ it rains when we can’t find a place to escape from the rain?

高二英语单项填空简单题查看答案及解析

Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they lack teeth and claws. But plants can defend themselves by using both physical and chemical means.

Some plants have their own ways to keep animals away. For example, the leaves of the holly plant have sharp spines(刺) that discourage grass-eating animals. Holly leaves on lower branches have more spines than leaves on upper branches. This is because the lower leaves are easier for most animals to reach.

Some plants , such as the oak trees, have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material; eating such grasses wears down the animal’s teeth.

Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a caterpillar(毛虫)bites a tobacco leaf, the leaf produces a chemical messenger. This messenger sends to the roots the information to produce more nicotine. The higher levels of nicotine discourage the caterpillar.

Many plants depends on both physical and chemical defenses. A certain plant in China , for instance, has prickly(多刺的) leaves, and each prickle contains poisonous venom(毒液). A single experience with this kind of plant will teach an animal to stay away from it in the future.

1.The holly plant has more spines on the lower leaves because most animals ________.

2.To defend themselves , oak trees use ________.

3. How does tobacco protect itself against an attack from a caterpillar?

4.What would be the best title for this passage?

高二英语阅读理解中等难度题查看答案及解析

Animals can move from place to place, but plants cannot. When an animal is under attack, it can run away or fight back. Plants certainly cannot run away, and they lack teeth and claws. But plants can defend themselves by using both physical and chemical means.

Some plants have their own ways to keep animals away. For example, the leaves of the holly plant have sharp spines (刺) that discourage grass-eating animals. Holly leaves on lower branches have more spines than leaves on upper branches. This is because the lower leaves are easier for most animals to reach.

Some plants, such as the oak tree, have thick and hard leaves that are difficult for animals to eat. Some grasses may contain a sandy material; eating such grasses wears down the animal’s teeth.

Many plants also have chemical defenses. Some plants produce chemicals that taste bitter or cause an unpleasant reaction. Some plants may fight against an attack by increasing the production of these chemicals. When a caterpillar (毛虫) bites a tobacco leaf, the leaf produces a chemical messenger. This messenger sends to the roots the information to produce more nicotine. The higher levels of nicotine discourage the caterpillar.

Many plants depend on both physical and chemical defenses. A certain plant in China, for instance, has prickly (多刺的) leaves, and each prickle contains poisonous venom (毒液). A single experience with this kind of plant will teach an animal to stay away from it in the future.

1.The holly plant has more spines on the lower leaves because most animals________.

A．are not tall enough             B．like the lower leaves only

C．are not clever enough           D．can get the lower leaves easily

2.To defend themselves, oak trees use________.

A．chemical means B．physical means

C．bitter chemicals                 D．sandy materials

3.How does tobacco protect itself against an attack from a caterpillar?

A．Its leaves fight against the attack by physical means.

B．Its roots send a messenger to discourage the caterpillar.

C．Its roots increase the production of nicotine when it is attacked.

D．Its leaves produce poisonous sand to drive the caterpillar away.

4.What would be the best title for this passage?

A．Plants and Animals           B．How Plants Defend Themselves

C．Attacks and Defenses       D．How Animals Eat Plant Leaves

高二英语阅读理解中等难度题查看答案及解析

Sometimes, when considering our own beliefs, we can find it challenging to accept other ways of life and rituals. However, close-mindedness and prejudice (偏见) are not the way to go, especially when there is so much we can learn about other cultures. Learning to accept and respect other cultures is an important step that opens your mind to the world around you and everyone’s unique differences.

Develop an open mind. Open the doors of your mind to accept what other people believe in. Try not to stereotype or brush things off when you haven’t actually taken a closer look yet. 1.

Take a look at history. The way some civilizations developed can be fascinating! 2. When you start studying, you’ll understand how things moved together to form the world we live in today. It’s a great piece of knowledge to have, so don’t rob yourself of it! There are plenty of books and sites available to fuel your curiosity. Appreciate the way different people fought for what they believed in, even if those beliefs differ from yours.

3..Sample some Italian or try your hand at cooking curry. Enjoy different foods and the different way meals are prepared. Don’t limit yourself, try everything and smile.

Talk to people. 4.It will help you understand that though they may believe and practice different things. That doesn’t make them strange or backward. Developing friendships with those from other cultures can be a really great experience.

Watching movies from different countries, like Bollywood movies or those on ancient happenings can be eye opening and help you appreciate different societies. If you’re into fashion, try sampling different culture’s dress and styles 5. If you’re having issues with racism and discrimination, try talking to someone to understand why you feel this way.

A. Try some new cooking.

B. Try doing something magical.

C. Try studying about ancient times.

D. Learn as much foreign culture as possible.

E. Talk with people from different cultures.

F. Try to get away from the personal opinions.

G. There are lots of magazines available on different fashions.

高二英语七选五中等难度题查看答案及解析

Sometimes, when considering our own beliefs, we can find it challenging to accept other ways of life and rituals. However, close-mindedness and prejudice (偏见) are not the way to go, especially when there is so much we can learn about other cultures. Learning to accept and respect other cultures is an important step that opens your mind to the world around you and everyone’s unique differences.

Develop an open mind. Open the doors of your mind to accept what other people believe in. Try not to stereotype or brush things off when you haven’t actually taken a closer look yet. 1.

Take a look at history. The way some civilizations developed can be fascinating! 2. When you start studying, you’ll understand how things moved together to form the world we live in today. It’s a great piece of knowledge to have, so don’t rob yourself of it! There are plenty of books and sites available to fuel your curiosity. Appreciate the way different people fought for what they believed in, even if those beliefs differ from yours.

3..Sample some Italian or try your hand at cooking curry. Enjoy different foods and the different way meals are prepared. Don’t limit yourself, try everything and smile.

Talk to people. 4.It will help you understand that though they may believe and practice different things. That doesn’t make them strange or backward. Developing friendships with those from other cultures can be a really great experience.

Watching movies from different countries, like Bollywood movies or those on ancient happenings can be eye opening and help you appreciate different societies. If you’re into fashion, try sampling different culture’s dress and styles 5. If you’re having issues with racism and discrimination, try talking to someone to understand why you feel this way.

A.Try some new cooking.

B.Try doing something magical.

C.Try studying about ancient times.

D.Learn as much foreign culture as possible.

E.Talk with people from different cultures.

F.Try to get away from the personal opinions.

G.There are lots of magazines available on different fashions.

高二英语七选五中等难度题查看答案及解析

----Can we borrow books from the library when it is completed ?

----Of course. It is _________ to every citizen only if you get a special card.

高二英语单项填空简单题查看答案及解析

----Can we borrow books from the library when it is completed ?

----Of course. It is _________ to every citizen only if you get a special card.

A．accessible     B．acceptable     C．reasonable     D．available

高二英语单项填空中等难度题查看答案及解析

— We had ______ really damp October this year.

— I can’t remember ______ autumn when it rained so much.

A. a; 不填　　 B. 不填; the　　 C. the; an　　 D. a; an

高二英语单项填空中等难度题查看答案及解析

--- Tomorrow we’ll go hiking in the mountain to experience nature.

---- ___ it rains heavily when we are still halfway?

高二英语单项填空中等难度题查看答案及解析

　1　You can find it on buildings，sidewalks，street signs and trash cans from Tokyo to Paris，from Moscow to Cape Town.Street art has become a global culture and even art museums and galleries are collecting the works of street artists.

Street art started out very secretly because it was illegal to paint on public and private property without permission.　 2　Some think it is a crime and others think it is a very beautiful new form of culture.

Art experts claim that the street art movement began in New York in the 1960s.Young adults painted words and other images on the walls and trains.This colorful style of writing became known as graffiti，whose art showed that young people wanted to rebel against society.

Street artists do their work for different reasons.　 3　They choose street art because it is closer to the people.Some artists try to express their political opinions in their work.Others like to do things that are forbidden and hope they won’t be caught.Advertising companies also use street art in their ads because it gives people the impressions of youth and energy.

　4　Artists can show their pictures to an audience all over the world.Many city residents，however，say that seeing a picture on the Internet is never as good as seeing it alive.

　5　There，it will continue to change and grow.

A. Street art is a very popular form of art that is spreading quickly all over the world.

B．Today，the Internet has a big influence on street art.

C．With the development of science and technology，different art styles come into the Internet.

D．The street art movement lives with the energy and life of a big cityE．People often have different opinions about street art.

F．Street art used to be illegal，but now has become popular.

G．Some of them do not like artists who make so much money in galleries and museums.

高二英语其他题中等难度题查看答案及解析