We are all aware _________ the many threats _...

We are all aware _________ the many threats _________ the environment and we need to take action to prevent us from the bad consequences.

A. of; to                                B. of; on                      C. that; to                                       D. that; on

高二英语单项填空中等难度题查看答案及解析

阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

We are all aware of the threats our planet is facing. Experts agree that it’s mainly humans 1. are responsible for the destruction of the environment. Activities such as mass farming and burning　 2. (harm) our climate now-and we are suffering too through natural 3.　 (disaster) such as flooding and droughts.

One of the most destructive activities we are carrying out is deforestation (砍伐森林). This has been most noticeable in Brazil, which is home to the world’s 4. (large) rainforest. Deforestation there 5. (hit) its highest rate in the past decade, according to official data. The result of widespread deforestation has threatened 6. centuries-old way of life. The future of the rainforest could be 7. danger of being damaged.

The amount of deforestation in the Amazon has 8. (actual) seen a decline but the figures are still large. Brazil has taken some steps to try and decrease deforestation by 9.(introduce) government policies including fines for breaking land use regulations. While humans are largely 10. (blame) for the destruction of the rainforest, it seems only humans will tackle this problem and save planet Earth.

高二英语语法填空中等难度题查看答案及解析

By now, we are all aware that social media has had a powerful influence on our culture, in business, on the world at large. Social media websites revolutionized the way people communicate and socialize on the Web. However, besides seeing your friends' new baby on Facebook, or reading about Justin Bieber's latest conflict with the law on Twitter, what are some of the real influences?

Social networks offer the opportunity for people to reconnect with their old friends and acquaintances, make new friends, share ideas and pictures, and many other activities. Users can keep pace with the latest global and local developments, and take part in campaigns and activities of their choice. Professionals use social media sites like Linkedln to improve their career and business development. Students can work together with their peers to improve their academic and communication skills.

Unfortunately, there are a few downsides too to social networking. If you are not careful, immoral people can target you for cyber bullying(网络欺凌) and disturbance on social sites. School children, young girls, and women can fall victim to online attacks which can create tension and suffering. If you are a victim of cyber bullying, do not take it lying down, but try to take appropriate legal action against the attacker.

Many companies have blocked social networks as addicted employees can distract (分心)themselves on such sites, instead of focusing on work. In fact, studies show that British companies have lost billions of dollars per year in productivity because of social media addiction among employees.

Also, what you carelessly post on the Net can come back to trouble you. Leaking personal information on social sites can make users easily harmed to crimes like identity theft, stalking(尾随犯罪), etc. Many companies perform a background check on the Web before hiring an employee.　 If a potential employee has posted something embarrassing on social media, it can greatly affect their chances of getting the job. The same holds true for our relationships too, as our loved ones and friends may get to know if we post something undesirable on social networks.

Social media has its advantages and drawbacks as each coin has two sides. It is up to each user to use social sites wisely to improve their professional and social life, and exercise caution to ensure they do not fall victim to online dangers.

1.Paragraph 2 mainly shows that social networks 　　　　 .

A.benefit users in various ways B.offer professionals good chances

C.guide users to make right choices D.help students finish their homework

2.Faced with problems caused by social media, some companies 　　　　 .

A.take legal action against the attackers

B.avoid posting embarrassing information

C.refuse to hire potential addicted employees

D.forbid the use of social networks during work time

3.The main purpose of this passage is to 　　　　 .

A.remind people to wisely use social media B.provide some advice on social problems

C.raise public awareness of social problems D.share experiences in using social media

4.Which of the following shows the development of ideas in this passage?

I: Introduction　　 P : Point　　　 Sp : Sub - point (次要点 )　　　 C : Conclusion

A. B. C. D.

高二英语阅读理解中等难度题查看答案及解析

By now, we are all aware that social media has had a tremendous influence on our culture, in business, on the world-at-large. Social media websites revolutionized the way people communicate and socialize on the Web. However, aside from seeing your friends’ new baby on Facebook, or reading about Justin Bieber’s latest conflict with the law on Twitter, what are some of the real influences?

Social networks offer the opportunity for people to re-connect with their old friends and acquaintances, make new friends, share ideas and pictures, and many other activities. Users can keep pace with the latest global and local developments, and participate in campaigns and activities of their choice. Professionals use social media sites like LinkedIn to enhance their career and business development. Students can work together with their peers to improve their academic and communication skills.

Unfortunately, there are a few downsides too to social networking. If you are not careful, immoral people can target you for cyber bullying and disturbance on social sites. School children, young girls, and women can fall victim to online attacks which can create tension and suffering. If you are a victim of cyber bullying, do not take it lying down, but try to take appropriate legal action against the attacker.

Many companies have blocked social networks as addicted employees can distract themselves on such sites, instead of focusing on work. In fact, studies show that British companies have lost billions of dollars per year in productivity because of social media addiction among employees.

Also, what you carelessly post on the Net can come back to trouble you. Revealing(泄露) personal information on social sites can make users vulnerable(易受伤害的)to crimes like identity theft, stalking, etc. Many companies perform a background check on the Web before hiring an employee. If a potential employee has posted something embarrassing on social media, it can greatly affect their chances of getting the job. The same holds true for our relationships too, as our loved ones and friends may get to know if we post something undesirable on social networks.

Social media has its advantages and drawbacks as each coin has two sides. It is up to each user to use social sites wisely to enhance their professional and social life, and exercise caution to ensure they do not fall victim to online dangers.

1.Paragraph 2 mainly shows that social networks _________.

A.help students finish their homework

B.offer professionals good chances

C.benefit users in various ways

D.guide users to make right choices users to make right choices

2.Faced with problems caused by social media, some companies ________.

A.forbid the use of social networks during work time

B.avoid posting embarrassing information

C.refuse to hire potential addicted employees

D.take legal action against the attackers

3.The main purpose of this passage is to _________.

A.share experiences in using social media

B.remind people to wisely use social media

C.provide some advice on social problems

D.raise public awareness of social problems

4.Which of the following shows the development of ideas in this passage?

A. B.

C. D.

高二英语阅读理解中等难度题查看答案及解析

By now, we are all aware that social media has had a tremendous influence on our culture, in business, on the world-at-large. Social media websites revolutionized the way people communicate and socialize on the Web. However, aside from seeing your friends’ new baby on Facebook, or reading about Justin Bieber’s latest conflict with the law on Twitter, what are some of the real influences?

Social networks offer the opportunity for people to re-connect with their old friends and acquaintances, make new friends, share ideas and pictures, and many other activities. Users can keep pace with the latest global and local developments, and participate in campaigns and activities of their choice. Professionals use social media sites like LinkedIn to enhance their career and business development. Students can work together with their peers to improve their academic and communication skills.

Unfortunately, there are a few downsides too to social networking. If you are not careful, immoral people can target you for cyber bullying and disturbance on social sites. School children, young girls, and women can fall victim to online attacks which can create tension and suffering. If you are a victim of cyber bullying, do not take it lying down, but try to take appropriate legal action against the attacker.

Many companies have blocked social networks as addicted employees can distract themselves on such sites, instead of focusing on work. In fact, studies show that British companies have lost billions of dollars per year in productivity because of social media addiction among employees.

Also, what you carelessly post on the Net can come back to trouble you. Revealing( 泄露) personal information on social sites can make users vulnerable(易受伤害的)to crimes like identity theft, stalking, etc. Many companies perform a background check on the Web before hiring an employee. If a potential employee has posted something embarrassing on social media, it can greatly affect their chances of getting the job. The same holds true for our relationships too, as our loved ones and friends may get to know if we post something undesirable on social networks.

Social media has its advantages and drawbacks as each coin has two sides. It is up to each user to use social sites wisely to enhance their professional and social life, and exercise caution to ensure they do not fall victim to online dangers.

1.Paragraph 2 mainly shows that social networks _________.

A. benefit users in various ways

B. offer professionals good chances

C. guide users to make right choices users to make right choices

D. help students finish their homework

2.Faced with problems caused by social media, some companies ________.

A. take legal action against the attackers

B. avoid posting embarrassing information

C. refuse to hire potential addicted employees

D. forbid the use of social networks during work time

3.The main purpose of this passage is to _________.

A. remind people to wisely use social media

B. share experiences in using social media

C. provide some advice on social problems

D. raise public awareness of social problems

4.Which of the following shows the development of ideas in this passage?

I: Introduction　 P: Point　 Sp: Sub-point(次要点)　 C：Conclusion

高二英语阅读理解中等难度题查看答案及解析

We are all busy talking about and using the Internet, but how many of us know the history of the Internet?

Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way, computer network system would keep on working all the time.

At first the Internet was only used by the government, but in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers had become cheaper and easier to use. Scientists had also developed software that made “surfing” the Internet more convenient.

Today it is easy to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular among students.

The Internet has now become one of the most important parts of people’s life.

1.The Internet has a history of about____________ years.

A．70           B．10             C．50             D．20

2. A new network system was set up to_____________.

A. make computers cheaper.

B. make itself keep on working all the time.

C. break down the whole network.

D. make computers large and expensive.

3. At first the Internet was only used by_____________.

A. the government.       B. scientists     C. hospitals and banks     D. schools

4.Which of the following is TRUE?

A．In the 1960s, computer networks worked well.

B．In the early 1970s, the Internet was easy to use.

C．Sending e-mail is now more popular among students.

D.Today it’s still not easy to get on-line.

高二英语阅读理解中等难度题查看答案及解析

Many people are not aware the most healing herbs make up today’s modern medicine. The healing herbs from ancient days are still the healing herbs of modern times. Throughout all of these years herbs have remained unchanged; their quality remain as strong as ancient man and animals found it to be thousands of years ago. What has changed is the way man uses these healing herbs together with modern medicine of today.

Ancient man knew about the many benefits of healing herbs and passed on their knowledge form generation to generation. Today modern man continues to benefit from the wisdom ages ago. Actually, herbs can be any plant, flower, tree or shrub(灌木) that heals the body. According to early writings, man first noticed that when an animal was ill it would bite into specific plants, otherwise the animal will leave them alone.

Observing animal behaviors is still done today. Ten years ago, researchers at the Gombe Stream National Park in Tanzania, noticed chimpanzees(黑猩猩) that were ill were eating Aspirin leaves. Researchers found that Aspirin leaves contained a kind of antibiotic(抗生素). These chimpanzees no doubt knew this plant would help heal their disease.

Most plant life has a pleasant smell. The writings of ancient man note that people rubbed these sweet plants on their bodies to keep insects away.

Some herbs mask the smell of smelly meat. The Egyptians used a variety of herbs to preserve their dead.

In conclusion, ancient herbs had a variety of purposes, and for thousands of years were used for the preservation of our foods, and to heal our bodies. Herbs can continue to play an important part in our lives if we open our minds to their importance and usefulness. In my opinion, it is always better to treat naturally with herbs, than to treat illnesses with man-made medicines. There are few if any side effects to taking herbs.

1.The example of chimpanzees is used to suggest ________.

A. chimpanzees are clever animals

B. man began studying herbs long ago

C. Aspirin leave can cure many diseases

D. animals helped man discover healing herbs

2.According to the text, the Egyptians used herbs ________.

A. to keep off insects B. at the burial service

C. to feed their animals D. for the preservation of foods.

3.Which of the following about healing herbs isn’t introduced in the text?

A. How people knew about healing herbs.

B. The benefits of healing herbs.

C. Side effect of healing herbs.

D. How ancient people use healing herbs in life.

4.What is the author’s attitude towards healing herbs?

A. He thinks highly of them. B. He refuses to accept them.

C. He thinks they’re ineffective. D. He thinks they have side effects.

高二英语阅读理解中等难度题查看答案及解析

The government doesn’t know how to deal with the dangerous situation________all the public are aware of at present.

A. where          B. which          C. when        D. who

高二英语单项填空简单题查看答案及解析

Most of us are already aware of the direct effect we have on our friends and family. But we rarely consider that everything we think, feel, do, or say can spread far beyond the people we know. Conversely(相反地), our friends and family serve as conduits(渠道) for us to be influenced by hundreds or even thousands of other people. In a kind of social chain reaction, we can be deeply affected by events we do not witness that happen to people we do not know. As part of a social network, we go beyond ourselves, for good or ill, and become a part of something much larger.

Our connectedness carries with it fundamental implications(影响) for the way we understand the human condition. Social networks have value precisely because they can help us to achieve what we could not achieve on our own. Yet, social network effects are not always positive. Depression, obesity, financial panic, and violence also spread. Social networks, it turns out, tend to magnify(放大) whatever they are seeded with.

Partly for this reason, social networks are creative. And what these networks create does not belong to any one individual—it is shared by all those in the network. In this way, a social network is like a commonly owned forest: we all stand to benefit from it, but we also must work together to ensure it remains healthy and productive. While social networks are fundamentally and distinctively human, and can be seen everywhere, they should not be taken for granted.

If you are happier or richer or healthier than others, it may have a lot to do with where you happen to be in the network, even if you cannot recognize your own location. And it may have a lot to do with the overall structure of the network, even if you cannot control that structure at all. And in some cases, the process feeds back to the network itself. A person with many friends may become rich and then attract even more friends. This richget-richer dynamic means social networks can dramatically reinforce two different kinds of inequality in our society: situational inequality and positional inequality.

Lawmakers have not yet considered the consequences of positional inequality. Still, understanding the way we are connected is an essential step in creating a more just society and in carrying out public policies affecting everything from public health to the economy. We might be better off vaccinating(接种疫苗) centrally located individuals rather than weak individuals. We might be better off helping interconnected groups of people to avoid criminal behavior rather than preventing or punishing crimes one at a time.

If we want to understand how society works, we need to fill in the missing links between individuals. We need to understand how interconnections and interactions between people give rise to wholly new aspects of human experience that are not present in the individuals themselves. If we do not understand social networks, we cannot hope to fully understand either ourselves or the world we inhabit.

1.What can be inferred from the first paragraph?

A.We can't be easily affected by strangers.

B.We are connected and form a social network.

C.We have negative effects on other social members.

D.We will not make a difference in a specific group.

2.What does the underlined word “it” in the second paragraph refers to ?

A.something larger B.our connectedness

C.the human condition D.a social network

3.A social network can be compared to a commonly owned forest because ______.

A.it remains healthy and productive.

B.it tends to magnify negative things.

C.it is creative and shared by people in the whole society.

D.what it creates can be enjoyed by everyone in the network.

4.What's the author's purpose in writing the passage?

A.To introduce the characteristics of social networks.

B.To urge people to understand how our society works.

C.To show the significance of understanding social networks.

D.To explain the possible consequences of ignoring social networks.

高二英语阅读理解中等难度题查看答案及解析

We all hope to ________ time on the return journey by not stopping at night.

A．take up     B．make up     C．end up     D．fill up

高二英语单项填空中等难度题查看答案及解析