We have every reason to believe that our busi...

We have every reason to believe that our business has shown a(n) ____ to improve.

A．direction                              B．tendency

C．aspect                                D．effect

高二英语单项填空中等难度题查看答案及解析

We have every reason to believe that our business has shown a(n) ____ to improve.

A．direction          B．tendency          C．aspect            D．effect

高二英语单项填空中等难度题查看答案及解析

We have every reason to believe that ______ 2012 London Olympic Games will be ______ success．

A． / ； a         B． the ；/            C． the ；a            D． a ；a

高二英语单项填空中等难度题查看答案及解析

We have every reason to believe that ____ 2010 World Expo in Shanghai will be ______ success.

A. /; a　　　　 B. the; /

C. the; a　 　 D. a; a

高二英语单项填空中等难度题查看答案及解析

We have every reason to believe that____2010 World Expo in Shanghai was_____ success.

A. /; a             B. the; /            C. the; a           D. a; a

高二英语单项填空中等难度题查看答案及解析

We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______success.

A. the; a         B. the; /               C. /; a         D. a; a

高二英语单项填空中等难度题查看答案及解析

Recently, we have already shown that climate change has led to a dramatic increase in storm surge risk in New York City, making devastating events like Hurricane Sandy more likely.

What can we say about the role of climate change in the unprecedented disaster that is unfolding in Houston with Hurricane Harvey? There are certain climate change-related factors that we can, with great confidence, say worsened the flooding.

Sea Level rise attributable to climate change-some of which is due to coastal subsidence(下沉) caused by human disturbance such as oil drilling-is more than half a foot(15cm) over the past few decades. That means the storm surge was half a foot higher than it would have been just decades ago, meaning far more flooding and destruction.

In addition to that, sea surface temperatures in the region have risen about 0.5℃(close to 1F) over the past few decades from roughly 30℃(86F) to 30.5℃(87F), which contributed to the very warm sea surface temperatures(30.5-31℃, or 87-88F). There is a simple thermodynamic(热力学的) relationship known as the Clausius-Clapeyron equation that tells us there is a roughly 3% increase in average atmospheric moisture content for each 0.5℃ of warming. Sea surface temperatures in the area where Harvey intensified were 0.5-1℃ warmer than current-day average temperatures, which translates to 1-1.5℃ warmer than “average” temperatures a few decades ago. That means 3-5% more moisture(水分) in the atmosphere. That large amount of moisture creates the potential for much greater rainfalls and greater flooding. The combination of coastal flooding and heavy rainfall is responsible for the devastating flooding that Houston is experiencing.

Not only are the surface waters of the Gulf of Mexico unusually warm right now, but there is a deep layer of warm water that Harvey was able to feed upon when it intensified at near record pace as it neared the coast. Human-caused warming is penetrating down into the ocean. It’s creating deeper layers of warm water in the Gulf and elsewhere. Harvey was almost certainly more intense than it would have been in the absence of human-caused warming, which means stronger winds, more wind damage and a larger storm surge.

Finally, the more tenuous but potentially relevant climate factors: part of what has made Harvey such a devastating(毁灭性的) storm is the way it has stalled near the coast. It continues to strike Houston and surrounding regions with a seemingly endless flood, which will likely top out at nearly 4ft(1.22m) of rainfall over a days-long period before it is done. The stalling is due to very weak prevailing winds, which are failing to steer the storm off to sea, allowing it to spin around and wobble back and forth. This pattern, in turn, is associated with a greatly expanded subtropical high pressure system over much of the US at the moment, with the jet stream pushed well to the north. This pattern of subtropical expansion is predicted in model simulations of human-caused climate change. More tenuous(微弱的), but possibly relevant still, is the fact that very persistent, nearly “stationary” summer weather patterns of this sort, where weather anomalies(both high-pressure dry hot regions and low-pressure stormy/rainy regions) stay locked in place for many days at a time, appears to be favoured by human-caused climate change.

In conclusion, while we cannot say climate change “caused” Hurricane Harvey, what we can say is that it exacerbated several characteristics of the storm in a way that greatly increased the risk of damage and loss of life. Climate change worsened the impact of Hurricane Harvey.

1.What’s the main purpose of writing the passage?

A. To offer tips on climate change.

B. To advocate paying more attention to current climate change urgently.

C. To share experiences on avoiding climate change.

D. To criticize human-caused climate change.

2.The underlined word “intensified” in Paragraph 4 probably means ________.

A. worsened　　 B. caused

C. favoured　　 D. increased

3.What is the best title for the passage?

A. Climate change made Hurricane Harvey more deadly

B. Sea level rise sea and surface temperatures changed Hurricane Harvey

C. Hurricane Harvey and its characteristics

D. The climate change-related factors and human-caused warming

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

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

A. 　　 B.

C. 　　 D.

高二英语阅读理解困难题查看答案及解析

Can trees talk? Yes, but not in words. Scientists have reason to believe that trees do communicate (交际) with each other. Not long ago, researchers learned some surprising things. First a willow tree attacked in the woods by caterpillars (毛虫) changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves and stopped eating them. Then even more astonishing, the tree sent out a special smell---a signal (信号) causing its neighbors to change the chemistry of their own leaves and make them less tasty.

Communication, of course, doesn’t need to be in words. We can talk to each other by smiling, raising our shoulders and moving our hands. We know that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals, flying in certain patterns that tell other bees where to find nectar (花蜜) for honey. So why shouldn’t trees have ways of sending message?

1. It can be concluded from the passage that caterpillars do not feed on leaves that ______.

2.According to the passage, the willow tree was able to communicate with other trees by ______.

3.According to this passage, bees communicate by ______.

高二英语阅读理解中等难度题查看答案及解析

Can trees talk? Yes, not in words. Scientists have reasons to believe that trees do communicate 1. each other.

Not long ago, researchers 2.(learn) some surprising things. First a willow tree 3.(attack) in the woods by caterpillars(毛虫) changed the chemistry of its leaves and made them taste so terrible that they got tired of the leaves 4.(gradual) and stopped eating them. Then even more 5.(astonish), the tree sent out a special smell—a signal causing 6. neighbors to change the chemistry of their own leaves and make them less tasty.

Communication, of course, doesn’t need to be in words. We can talk to each other by smiling, raiding our shoulders and moving our hands. 7. we know is that birds and animals use a whole vocabulary of songs, sounds, and movements. Bees dance their signals. 8.(fly) in certain patterns that tell other bees where 9. (find) nectar(花蜜) for honey. So why shouldn’t trees have 10.(way) of sending messages?

高二英语短文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