Scientists don’t think that a warm winter alw...

Scientists don’t think that a warm winter always has a negative influence on our life,____?

A. don’t they  B. do they         C. hasn’t it        D. has it

高三英语单项填空中等难度题查看答案及解析

Scientists think that the continents ______ always where they _______ today.

A. aren’t; are         B. aren’t; were            C. weren’t; are        D. weren’t; were

高三英语单项填空中等难度题查看答案及解析

Scientists think that the continents ________ always where they ________ today.

A. aren’t; are           B. aren’t; were         C. weren’t; are         D. weren’t; were

高三英语单项填空困难题查看答案及解析

（题文）The__________ that there is life on other planets in the universe has always inspired scientists to explore the outer space.

A. advice　　 B. order

C. possibility　　 D. invitation

高三英语单项填空中等难度题查看答案及解析

Man has a big brain. He can think, learn and speak. Scientists thought that men are different from animals because they can think and learn. They know now that dogs, cats and birds can learn too. They are beginning to understand that. They make noises when they are afraid, or angry or unhappy. Apes(猿) can understand some things more quickly than human, one or two of them have learnt a few words. But they can not join words to make sentences. They can not think like us because they have no language. Language is a wonderful thing. Man has been able to build a modern world because he has language. Every child can speak his own language very well when he is four or five, —but no animal learns to speak. How do children learn it ? Scientists do not really know. What happens inside our body when we speak? They do not know. They only know that man can speak because he has a brain.

1.The best title for this passage is          .

2.Men are different from animals in the way that           .

3.An ape can not           .

4.Scientists now know            .

5.Which of the following is NOT true ?

高三英语阅读理解简单题查看答案及解析

I don’t think that it’s true. She’s always ______ lies.

高三英语单项填空简单题查看答案及解析

He also hopes that he always has the courage to pursue his love of music, ________ what others think.

A.apart from B.in spite of C.regardless of D.in addition to

高三英语单项填空简单题查看答案及解析

It’s always cold in Zhejiang in winter, but it ____ be warm at times.

A. can    B. may    C. will    D. might

高三英语单项填空中等难度题查看答案及解析

Iceland, an island just south of the Arctic Circle, has fairly mild winters,　 thanks to warm ocean currents. Time your vacation here during the winter months to take advantage of off-season deals.

Off-season means good deals on flights, hotels and tours. You may also find that the locals are a bit friendlier and more welcoming when tourists aren’t arriving in crowds.

In the winter months, there are less than seven hours of daylight; thus, chances are good you’ll catch sight of the northern lights. Sunsets are also beautiful at this time, making for some great photo opportunities.

In Iceland, winter is the perfect time to hike glaciers, go ice climbing, explore caves made out of hardened lava(岩浆) and much more. One of the most popular activities is off-roading(越野比赛) in a specially-equipped “super jeep”.

Before booking your trip, be sure to check for volcano alerts. There are about 130 volcanoes on or around Iceland. Thirty-five of them are active. In 2010, a volcano named Eyjaallajokull exploded, sending clouds of ash up to four kilometers into the atmosphere. The ash drifted toward the UK and Europe. Because the ask could damage aircraft engines, airlines operating in the region were forced to cancel flights for six days. As a result, thousands of people were stuck in airports.

Recently, another volcano named Bardarbunga has become active, erupting ash into the air. Such events, if large enough, could prevent your trip from going ahead. So check the latest volcano news prior to making your reservations.

1. According to this article, why are you more likely to see the northern lights in the winter?

A. They move from rural areas to cities.

B. The weather is more stable at that time.

C. They’re a special feature of many festivals.

D. The sky is dark for longer periods then.

2. According to the article, how do visitors to Iceland have fun in the winter?

A. They learn how to ski down the mountains.

B. They photograph famous historic sites..

C. They explore the countryside in well made vehicles..

D. They spend a week at one of the seaside resorts.

3. What is true about the volcanoes of Iceland?

A. The majority of them are quiet.

B. Their age hasn’t been determined.

C. All but one of them are extinct.

D. Citizens aren’t affected by them.

4. What does this article explain?.

A. Some of Iceland’s urban cultural attractions.

B. A way t reduce the cost of a trip to Iceland.

C. Reasons for visiting Iceland in June and July.

D. The average price for a short tour of Iceland.

高三英语阅读理解中等难度题查看答案及解析

Against the assumption that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space.

This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling.

This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat.

Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone（臭氧）levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling.

“We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere.” Scientists tracked the change in amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicated, 0.5 watts per square meter of area burned are soaked up by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.

1. According to the new findings, taking steps to prevent northern forest fires may _______.

A. result in a warming climate                   B. cause the forest fires to occur more frequently

C. lead to a longer fire season                     D. protect the forests and the environment there

2. Earlier studies about northern forest fires ________.

A. analyze all aspects of how northern fires influence climate

B. indicate that forest fires will pollute the atmosphere

C. suggest that people should take measures to protect environment

D. suggest that the fires will speed up climate warming

3. The underlined phrase “soaked up” in the last paragraph most probably means ________.

A. released          B. absorbed            C. created               D. disturbed

4. From the text we can draw a conclusion that forest fires in Alaska, Canada and Siberia may ______.

A. warm the climate as the assumption goes

B. allow more snow to reflect more sunlight into space and thus cool the climate

C. destroy large areas of forests and pollute the far-off sea ice

D. help to gain more energy rather than release more energy

高三英语阅读理解简单题查看答案及解析