But for friction (摩擦力), people ______ neither...

But for friction (摩擦力), people ______ neither walk, nor even stand up.

A. can                                        B. were able to      C. will be able to                   D. could

高二英语单项填空中等难度题查看答案及解析

If you don’t go to the party tomorrow evening, ______.

A.  so do I      B. so will I    C. nor do I         D. neither shall I

高二英语单项填空简单题查看答案及解析

课文填空

Neither its cause nor its 1. was understood. So many thousands of 2.people died every time there was an outbreak. John Snow wanted to face the 3. and solve this problem. He knew that cholera would never be controlled 4. its cause was found.

England is the largest of the four countries, and for 5.　 it is divided 6. into three zones. ... .Although, 7., these cities are not as large as 8.in China, they have world-famous football teams and some of them even two!

Having said this he spread some food on the table, and produced a bed from the floor. After he left, I had a 9. meal and a hot bath. Exhausted, I slid into bed and fell fast 10..

高二英语根据课文内容填空简单题查看答案及解析

Apparently，we are safe neither at home nor in the business office．We use water in both places，but the research shows that chemicals added to our local water supply to kill harmful bacteria can have unwanted side effects．These chemicals can cause potential harm through drinking and in seemingly harmless activities as cleaning one’s house．They are released from water by daily actions like water running out of tap，spraying from garden pipes，or splashing in dishwashers and washing machines．As the water is moving．these chemicals are released into the air and then breathed in. Once inside our bodies, they start to affect our health.

Does this mean we should stop bathing? No, say the scientists, but we should put all pollution into perspective. Activities at home such as the burning of coal, cooking oil, or even candles release carbon monoxide and particulates such as cigarette ashes which have been proven as harmful to health as working or living near heavy traffic. New tugs, bedding, and even clothing give off that“new smell, ”which is a sure sign of chemicals. In the office, newly applied paint, newly purchased telephones and other telecommunications equipment, and computers release polluting chemicals, too. As offices and homes often have inadequate ventilation (通风), these chemicals can build up to become health problems. Their poisonous effects are only now being slowly recognized.

These facts suggest that, at a minimum, proper airing of newly purchased goods with an obvious chemical smell is a wise warning. Home and office windows should be opened during good weather. Even one’s car needs to be ventilated as well while in the garage.

We need further research to understand better other potential health dangers, too. For example, the effects of overcrowding of schools (carbon dioxide build-up ), the factory work environment ( an endless list of potentially dangerous substances ), and even home heating and cooling (the air conditioner may be our enemies, not our friends) have only recently started to come to light. Until we understand the effects of our new technological environment better, we can only hope that“there is no place like home.”

1.What is the main idea of the first paragraph?

A．The air we breathe in is harmful.

B．The water in everyday use is unsafe.

C．Chemicals are added to the drinking water.

D．Chemicals are released in the running water.

2.In Paragraph 2, the underlined sentence means that________.

A．bathing should be done with caution

B．homes and offices should be aired often

C．any pollution should be taken into consideration

D．we should prevent any pollution from doing harm to us

3.What is the purpose of the passage?

A．To call on us to guard our water.

B．To show us that no place is like home.

C．To make us aware of the pollution around us.

D．To argue that neither homes nor offices are safe.

高二英语阅读理解中等难度题查看答案及解析

It’s neither aliens nor a rare disease ________ will threaten the human race in the future, but climate change.

A. whether            B. which            C. what            D. that

高二英语单项填空中等难度题查看答案及解析

PITTSBURGH — For most people, snakes seem unpleasant or even threatening. But Howie Choset sees in their delicate movements a way to save lives.

The 37-year-old Carnegie Mellon University professor has spent years developing snake-like robots he hopes will eventually slide through fallen buildings in search of victims trapped after natural disasters or other emergencies.

Dan Kara is president of Robotics Trends, a Northboro, mass-based company that publishes an online industry magazine and runs robotics trade shows. He said there are other snake-like robots being developed, mainly at universities, but didn't know of one that could climb pipes.

The Carnegie Mellon machines are designed to carry cameras and electronic sensors and can be controlled with a joystick (操纵杆). They move smoothly with the help of small electric motors, or servos, commonly used by hobbyists in model airplanes.

Built from lightweight materials, the robots are about the size of a human arm or smaller. They can sense which way is up, but are only as good as their human operators, Choset added.

Sam Stover, a search term manager with the Federal Emergency Management Agency based in Indiana, said snake-type robots would offer greater mobility than equipment currently available, such as cameras attached to extendable roles.

"It just allows us to do something we've not been able to do before," Stover said, "We needed them yesterday."

He said sniffer dogs are still the best search tool for rescue workers, but that they can only be used effectively when workers have access to damaged building.

Stover, among the rescue workers who handled the aftermath (后果) of Hurricane Katrina, said snake robots would have helped rescuers search flooded houses in that disaster.

Choset said the robots may not be ready for use for another five to ten years, depending on funding.

1.Which institution is responsible for the development of Choset's robots?

A. Robotics Trends.　　 B. Pittsburgh City Council.

C. Carnegie Mellon University.　　 D. Federal Emergency Management Agency.

2.Choset believes that his invention _________.

A. can be attached to an electronic arm

B. can be used by hobbyists in model airplanes

C. can find victims more quickly than a sniffer dog

D. can sense its way as well as its operators

3.By saying "We needed them yesterday" (paragraph 7), Stover means that snake-like robots ________.

A. could help handle the aftermath of Hurricane Katrina

B. should have been put to use in past rescue work

C. helped rescuers search flooded houses yesterday

D. were in greater need yesterday than today

4.What is the text mainly about?

A. Snake-like robots used in industries.

B. Snake-like robots made to aid in rescues.

C. The development of snake-like robots.

D. The working principles of snake-like robots.

高二英语阅读理解中等难度题查看答案及解析

Say you're out for a walk in the woods. 1.. Nor can you tell the direction from which you've come. You're lost. How can you survive? Here's the good news: You don't need to be a survival expert to find your way back to civilization. Just stay calm and remember these tips. Pinpoint (定位) your location.

Take a good look around. What do you see? 2. pinpointing your location will be difficult. If possible, find higher ground, giving yourself a better view of the surroundings. Otherwise, you may end up walking directionless and possibly in circles.

3..

While traveling through the wilderness, be observant. Look for old campsites, fishing line, food bags, cigarette ends, plastic water bottles, or any other kind of litter. If you find any such evidence, examine your surroundings to determine which way they went.

If possible, stick to open country.

4.. This type of terrain (地带) is often a result of farming or logging (伐木), which may put you closer to other people. Plus, being out in the open makes it easier for you to be spotted by a low flying aircraft. Be sure to have something ready to signal with in case a rescue plane flies nearby. Travel downhill.

If you are lost in hilly terrain, your best choice is almost always to travel downhill. People tend to settle in valleys, usually close to water. 5., head down and out of the mountains. Besides, you can cover more terrain and conserve energy traveling downhill.

A. Find your way out

B. Look for signs of people

C. If the answer is a thick forest

D. Sometimes, it's not easy to find open country

E. Suddenly, you don't recognize your surroundings

F. Unless you have seen signs of people at higher places

G. Traveling in open country is a good way to find signs of civilization

高二英语七选五中等难度题查看答案及解析

We are not born with courage, but neither are we born with fear. Fears, even the most basic ones, can totally destroy our ambitions. Fear can destroy fortunes. Fear can destroy relationships. Fear, if left unchecked, can destroy our lives. Fear is one of the many enemies living inside us.

1.__

The first enemy we face is indecision(优柔寡断). Indecision is the thief of opportunity. __2._ Take a sword to this enemy.

The second enemy inside is doubt. __3.__ But you also can’t let doubt take over. Many people doubt the past, doubt the future, doubt each other, doubt the government, doubt the possibilities and doubt the opportunities. Worst of all, they doubt themselves. I’m telling you, doubt will destroy your life and your chances of success. It will empty both your bank account and your heart. __4.__

Do battle with the enemy. Do battle with your fears. 5.__ Be courageous in your life and in your pursuit of the things you want and the person you want to become.

A. Sure, there’s room for healthy doubt. You can’t believe everything

B. Build your courage to fight what’s holding you back, what’s keeping you from your goals and dreams.

C. Let me tell you about two of the other enemies we face from within.

D. Below are the ways which might be useful for us to overcome our fears.

E. Doubt is an enemy. Go after it. Get rid of it.

F. It will steal your chances for a better future.

G. Some people doubt everything.

高二英语信息匹配中等难度题查看答案及解析

Neither television nor radio nor magazines nor books nor any other medium can begin to match newspapers for depth and breadth of coverage (新闻报道). In fact, all these media themselves depend on newspapers to bring them information that they then process and distribute as their own brand of news.

Now many newspapers are locked in a struggle for survival. If they lose—which is by no means impossible—we all lose.

The great task for editors and publishers is to respond to the competitive challenge caused by online news, and at the same time use their own online news to increase their profits (利润). As yet，they haven't figured out a smooth and sure way to do that.

So they cut some more to get profit. The cuts in size that they are making are in some cases risky and in others without considering the results. With every cut, publishers tirelessly argue that readers won't even know the difference. The trouble is that by the time customers do notice that they are getting less for their money，it will be too late—too late to notice the reduction in the number of readers.

The other big cuts, of course, are in staff (员工). The victims would be the oldest and most experienced workers because they are the highest paid.While there is plenty of tired deadwood among them，there is also a lot of talent.

When experienced staff leave in large numbers—as they often do now—the newspaper loses great professional memory. But the real loser is the readers, who are suddenly robbed of the insights (见识) that only the experienced reporters can bring.

As for the future, there is at least one big, bright sign：intelligent young people will continue to flood into journalism in urgent search of jobs, despite its high demands and modest (不太高的) pay.

1.The underlined word “deadwood” in Paragraph 5 may refer to “　　 ”．

A. the staff who are going to retire

B. people who are no longer useful or needed

C. workers who are experienced

D. reporters who are tired of covering events

2.According to the passage，which of the following can best describe the author's attitude towards the ways the editors and publishers have adopted to get profit?

A. The author has no objection.

B. The author is against them.

C. The author has not shown it clearly.

D. The author regards them reasonable.

3.The author seems to agree with the view that 　　　 .

A. experienced workers are the last to be laid off

B. journalism is a job offering highest pay for high demands

C. the challenge of newspapers is that there are not enough intelligent young people

D. it is possible that newspapers may not survive in the end

4.It is stressed by the passage that the most important quality for a journalist is 　　　 .

A. patience 　　　 B. selfishness 　　　 C. insights 　　 D. sensitivity

高二英语阅读理解中等难度题查看答案及解析

Neither television nor radio nor magazines nor books nor any other medium can begin to match newspapers for depth and breadth of coverage (新闻报道). In fact, all these media themselves depend on newspapers to bring them information that they then process and distribute as their own brand of news.

Now many newspapers are locked in a struggle for survival. If they lose—which is by no means impossible—we all lose.

The great task for editors and publishers is to respond to the competitive challenge caused by online news, and at the same time use their own online news to increase their profits (利润). As yet，they haven't figured out a smooth and sure way to do that.

So they cut some more to get profit. The cuts in size that they are making are in some cases risky and in others without considering the results. With every cut, publishers tirelessly argue that readers won't even know the difference. The trouble is that by the time customers do notice that they are getting less for their money，it will be too late—too late to notice the reduction in the number of readers.

The other big cuts, of course, are in staff (员工). The victims would be the oldest and most experienced workers because they are the highest paid. While there is plenty of tired deadwood among them，there is also a lot of talent.

When experienced staff leave in large numbers—as they often do now—the newspaper loses great professional memory. But the real loser is the readers, who are suddenly robbed of the insights (见识) that only the experienced reporters can bring.

As for the future, there is at least one big, bright sign：intelligent young people will continue to flood into journalism in urgent search of jobs, despite its high demands and modest (不太高的) pay.

1.The underlined word “deadwood” in Paragraph 5 may refer to “________”．

A. the staff who are going to retire

B. people who are no longer useful or needed

C. workers who are experienced

D. reporters who are tired of covering events

2. According to the passage，which of the following can best describe the author's　　 attitude towards the ways the editors and publishers have adopted to get profit?

A. The author has no objection.

B. The author is against them.

C. The author has not shown it clearly.

D. The author regards them reasonable.

3.The author seems to agree with the view that________.

A. experienced workers are the last to be laid off

B. journalism is a job offering highest pay for high demands

C. the challenge of newspapers is that there are not enough intelligent young people

D. it is possible that newspapers may not survive in the end

4. It is stressed by the passage that the most important quality for a journalist is________.

A. patience 　　 　 B. selfishness

C. insights　　　　 D. sensitivity

高二英语阅读理解中等难度题查看答案及解析