结合语境写出划线词（组）在语境中的确切含义1.Heavy drinking can cau...

结合语境写出划线词（组）在语境中的确切含义

1.Heavy drinking can cause permanent damage to the brain.

2.According to the law, all foreigners have to register with the local police within two weeks of arrival.

3.I love technology and try to keep up with it so I can relate to my students.

4.Lack of exercise is also a risk factor for heart disease but it's relatively small when compared with the others.

5.Often the lives of writers resemble the lives of the characters they create.

6.The seven-year-old was found crying with scratches on his face and neck.

7.Many farmers spray chemicals on crops to kill weeds and insects.

8.The space underneath could be used as a storage area.

9.Nothing can substitute for the advice your doctor is able to give you.

10.He was eventually diagnosed as suffering from terminal cancer.

11.I know I was a naive fool to trust him but he is a real charmer who totally took me in.

12.Panic set in, but Mary could not run—she was frozen to the spot.

13.Be careful not to damage other people's property.

14.During the period prior to the travel restrictions in China, only about 13 to 14 percent of all infections were documented.

15.With respect to your children, listen attentively to them without offering advice.

16.Viruses lie around our environment all of the time, waiting for a host cell to come along.

17.It helps regulate the planet’s temperature by influencing the circulation of the atmosphere and ocean.

18.Currently, GCPC's free services are open to all countries and regions around the globe, aiming at helping people tackle the current difficulties together.

19.A fifth year of drought is expected to have dramatic effects on the California economy.

20.An internet healthcare company has announced the launch of a global epidemic-prevention and control platform in a bid to integrate medical resources from home and abroad.

高三英语英译汉简单题查看答案及解析

Exposing living tissue to subfreezing temperatures for long can cause permanent damage. Microscopic ice crystals (结晶体) cut cells and seize moisture (潮气), making donor organs unsuitable for transplantation. Thus, organs can be made cold for only a few hours ahead of a procedure. But a set of lasting new antifreeze compounds (化合物)—similar to those found in particularly hardy (耐寒的) animals—could lengthen organs’ shelf life.

Scientists at the University of Warwick in England were inspired by proteins in some species of Arctic fish, wood frogs and other organisms that prevent blood from freezing, allowing them to flourish in extreme cold. Previous research had shown these natural antifreeze molecules (分子) could preserve rat hearts at -1.3 degrees Celsius for up to 24 hours. But these proteins are expensive to extract (提取) and highly poisonous to some species. “For a long time everyone assumed you had to make synthetic (人造的) alternatives that looked exactly like antifreeze proteins to solve this problem, ”says Matthew Gibson, a chemist at Warwick who co-authored the new research. “But we found that you can design new molecules that function like antifreeze proteins but do not necessarily look like them. ”

Most natural antifreeze molecules have a mixture of regions that either attract or repel water. Scientists do not know exactly how this process prevents ice crystal formation, but Gibson thinks it might throw water molecules into push-pull chaos that prevents them from tuning into ice. To copy this mechanism, he and his colleagues synthesized spiral-shaped molecules that were mostly water-repellent—but had iron atoms at their centers that made them hydrophilic, or water-loving. The resulting compounds were surprisingly effective at stopping ice crystals from forming. Some were also harmless to the roundworm Caenorhabditis elegans, indicating they might be safe for other animals.

“These compounds are really cool because they are not proteins—they are other types of molecules that nonetheless can do at least part of what natural antifreeze proteins do, ”says Clara do Amaral, a biologist at Mount St. Joseph University, who was not involved in the research. Gibson’s antifreeze compounds will still need to be tested in humans, however, and may be only part of a solution. “We don’t have the whole picture yet, ”do Amaral adds. “It’s not just one magical compound that helps freeze-tolerant organisms survive. It’s a whole suite of adaptations.

1.What will happen if organs are kept for a long time in temperatures below zero?

A. They will have ice crystal formation inside.

B. They will not suffer permanent damage.

C. They will have longer shelf life.

D. They will be fit for transplantation.

2.What can we learn about natural antifreeze proteins?

A. They look like Gibson’s antifreeze compounds.

B. They are composed of antifreeze molecules harmless to other species.

C. They are spiral-shaped and have iron atoms at their centers.

D. They can be found in organisms living in freezing cold weather.

3.How are antifreeze molecules prevented from ice crystals?

A. By creating compounds both water-repellent and water-loving.

B. By extracting the proteins from some hardy animals.

C. By making synthetic alternatives like antifreeze proteins.

D. By copying spiral-shaped molecules mostly water-resistant.

4.What’s the main idea of the passage?

A. Push-pull chaos might prevent water molecules from turning into ice.

B. The final solution to preserving donor organs has been found recently.

C. Chemicals inspired by Arctic animals could lengthen organs’ shelf life.

D. Gibson’s antifreeze compounds can do what natural antifreeze proteins do.

高三英语阅读理解困难题查看答案及解析

.

Heavy drinking used to be acceptable, but as drunken driving has caused so many tragedies public opinion is no longer________.

高三英语单项填空简单题查看答案及解析

Heavy drinking used to be acceptable, but as drunken driving has caused so many tragedies public opinion is no longer ______.

A. accurate                              B. tolerant                     C. appropriate               D. reliable

高三英语单项填空简单题查看答案及解析

It can be easy to _______ such bad habits as smoking and heavy drinking, but it is not so easy to quit.

A．slide into          B．turn into          C．put into           D．draft into

高三英语单项填空简单题查看答案及解析

单词拼写:根据首字母或汉语注释写出单词的正确形式。

1．His health s   ________   terribly from heavy drinking in the past．

2．As far as I am c  ______ ，I can't agree with what you have said．

3．The worker i  _____  his own danger and jumped into the river to save the boy．

4．Now t  ____   like to surf the internet；some even forget his own studies．

5．Soon the robber was found   ________ (躲藏) in a mountain village．

6．I am now in a difficult   _______ (情形，情况)．I badly need your help．

7．The news quite   _______ (使他心烦意乱)him．

8.  I like being __________ (忙碌的).

9.  It’s my __________ (梦想) to see the Great Wall one day.

10.  Usually, it’s so _________ (拥挤的) that I can’t find anywhere to sit.

高三英语单词拼写简单题查看答案及解析

We often talk about ourselves as if we have permanent genetic defects （缺陷） that can never be changed．“I’m impatient．” “I’m always behind．” “I always put things 21!” You’ve surely heard them．Maybe you’ve used them to describe 22．

These comments may come from stories about us that have been 23 for years—often from 24 childhood．These stories may have no 25  in fact．But they can set low expectations for us．As a child, my mother said to me, “Marshall, you have no mechanical （操作机械的） skills, and you will never have any mechanical skills for the rest of your life．” How did these expectations 26 my development? I was never 27 to work on cars or be around 28．When I was 18, I took the US Army’s Mechanical Aptitude Test．My scores were in the bottom for the entire nation!

Six years later, 29 , I was at California University, working on my doctor’s degree．One of my professors, Dr．Bob Tannbaum, asked me to write down things I did well and things I couldn’t do．On the positive side, I 30 down, “research, writing, analysis, and speaking．” On the 31 side, I wrote, “I have no mechanical skills．”

Bob asked me how I knew I had no mechanical skills．I explained my life 32 and told him about my 33 performance on the Army test．Bob then asked, “34 is it that you can solve 35 mathematical problems, but you can’t solve simple mechanical problems?”

Suddenly I realized that I didn’t 36 from some sort of genetic defect．I was just living out expectations that I had chosen to 37．At that point, it wasn’t just my family and friends who had been 38 my belief that I was mechanically hopeless．And it wasn’t just the Army test, either．I was the one who kept telling myself, “You can’t do this!” I realized that as long as I kept saying that, it was going to remain true．39 , if we don’t treat ourselves as if we have incurable genetic defects, we can do well in almost 40 we choose．

高三英语完型填空中等难度题查看答案及解析

The number of traffic accidents caused by drinking is ____ as the number of those caused by non-drinking driving．

A．as twice many    B．many as twice    C．as twice large  D．twice as large

高三英语单项填空中等难度题查看答案及解析

The number of traffic accidents caused by drinking is ____ as the number of those caused by non-drinking driving.

A. as twice many　　 B. many as twice

C. as twice large　　 D. twice as large

高三英语单项填空中等难度题查看答案及解析

Heavy downpours last month in Rhode Island led to widespread flooding, causing millions of dollars in property damage and leaving thousands homeless. The flood waters also poured vast amounts of raw sewage(未经净化的污水) into the rivers and streams that flow into Narragansett Bay.

It sounds like the makings of an environmental nightmare. But in fact it’s just the opposite. To scientists’ delight. The sewage-loaded floodwaters have caused a well-timed growth of phytoplankton. The microscopic creatures that form the foundation of marine(海洋的) food chains. With more food available for fish. Clams and other sea creatures. The bay’s fisheries industry is expected to benefit.

In decades past. Narragansett Bay typically experienced a late winter early spring algal(海藻) bloom that fed creatures up and down the water column. But in recent years, the waters of Narragansen Bay warmed greatly, meriting this seasonal event.

Mark Berman, an oceanographer with the Nationa. Marine Fishertes Service. Said the flood seemed to have sent the bay back in its normal state.

However, local, mutate and federal officials in Rhode Island leave been batting other algal blooms that, by contrast, are causing widespread harm to the Narragansett Bay ecosystem. During summer months, sewage and agricultural runnel flows into the bay. Causing large blooms. But inseam of becoming food for sea creatures, much of the phytoplankton is consumed by bacteria, which grow last in the warmer waters. The rapid bacteria growth leads to hypoxia decrease of oxygen in the water that can cause large fish tools. One such die-off occurred in 2003. when millions of oxygen-starved fish washed up on the belches of Narragansett Bay.

The flood’s positive impact will probably be a one-time event, Mr Berman said. Mcanwhile efforts to curb the harmhl summer honors continue; in 2003. for instance, Providence completed a $359 million sewage tonal under the city designated to reduce the polluted storm overflow into Narragansett Bay.

1.Scientists believe that the row sewage flowing into the bay will________.

A．pollute the island’s environ mean                 B．cause lots of property damage

C．increase the fisheries production                  D．destroy the food chains in the bay

2.The potential benefit of fisherics industry rclics on the________.

A．warm temperatures of the bay.    B．growth of phytoplankton

C．large summer alga blooms         D．consumption of oxygen by beaters

3.People struggle against the summer blooms because they will________.

A．pollute the local natural environment

B．increase the prcducmon of fishery industry

C．cause large fish kills of the bay indirectly

D．provide too much food ior sea creatures

4.It can be inferred that________.

A．money spent on the summer blooms has been wasted

B．the government is inverting to promote the local fisheries

C．research of accanology should he encouraged

D．she raw sewage impacts are currently con radiator

5.The underlined word “carb” n the hast postage can be defined as “________”.

A．control        B．consume        C．cause          D．cure

高三英语阅读理解中等难度题查看答案及解析