The way you write for people can _________ wh...

The way you write for people can _________ whether or not they believe you. You need to strike a balance between being polite and formal and getting _________on your side.

A. affect; them         B. effect; it                C. tell; it                     D. show; them

高三英语单项填空中等难度题查看答案及解析

In many ways, the magic of AI is ________ it’s not something you can see or touch.

A. whether B. what

C. that D. why

高三英语单项填空简单题查看答案及解析

Whether ways can be found to stop pollution or not is just ____ worries the public．

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

高三英语单项填空中等难度题查看答案及解析

You can tell a lot about people by looking at their hair — not just whether they brush, spray or blow-dry. Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications.

Water is central to the new technique. The liquid makes up more than half an adult human’s body weight. Our bodies break water down into hydrogen(氢) and oxygen. Atoms of these two elements end up in our tissues, fingernails, and hair.

But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. In the case of hydrogen, for example, there are three types according to their weights. Each type is called a hydrogen isotope(同位素). And depending on where you live, tap water contains different isotopes.

Can hair record this information? That’s what James R. Ehleringer, an environmental chemist at the University of Utah, wondered. To find it out, he and his colleagues collected hair from hair stylists in 65 cities across the United States. Even though people drink a lot of bottled water these days, the researchers have found that people’s hair has the same isotopes as found in local tap water. That’s probably because people usually cook their food with the local water.

Authorities can now use the information to analyze hair samples from criminals or crime victims and narrow their search for clues. For example, one hair sample used in Ehleringer’s study came from a man who had moved from San Francisco to Salt Lake City. As his hair grew, it reflected his change in location.

1.What do we know about the hydrogen isotopes according to Paragraph 3?

A. They are classified by size.

B. Each type of them differs in weight.

C. They can improve the quality of tap water.

D. Some of them cannot combine with oxygen.

2.Why is it possible to know where people are from by analyzing their hair?

A. People use the same bottled water.

B. People wash their hair in different ways.

C. People’s hair is affected by the weather of the places they stay.

D. People’s hair indicates the type of water in the places they stay.

3.The last paragraph is mainly to show _______.

A. how to recognize criminals　　 B. how to collect hair samples

C. the usefulness of hair analysis　　 D. the process of Ehleringer’s study

4.Which of the following can be the best title for the passage?

A. Water composition　　 B. Change your hair

C. Hair detectives　　 D. No way out

高三英语阅读理解困难题查看答案及解析

Have you ever noticed how the way you feel about yourself sometimes depends on whether or not you get confirmation of your value from others?

I have______a lot about nurturing a positive identity of love and appreciation from the man who taught me to train dogs.

First, he started out by ______his dogs with love and respect, and by showing them an infinite amount of______as they were learning.

Then, the______thing he did was a true stroke of genius. He would cut a small piece of______for each dog. He would place it in the dog's sleeping area, for him to______each night. He would also take this carpet during the______and set it down in various locations, and sit the dog on the carpet, as he______the dog for being good.

Next, Frank would teach the dog to______the carpet himself, and carry it to_____ they were going. The dog would then set the carpet down when they______, with Frank all of the time praising him. Now Frank said, "The dog begins to feel that he truly______in every place he travels to, and no matter where he goes, he______my love and appreciation. "

If this strategy______so brilliantly with dogs, would it not work just______with human beings?

1.A.learned B.accumulated C.improved D.distinguished

2.A.pleasing B.treating C.surrounding D.chasing

3.A.sympathy B.comfort C.patience D.honor

4.A.first B.last C.next D.least

5.A.cloth B.meat C.area D.carpet

6.A.lie on B.hide in C.stand beside D.play with

7.A.morning B.afternoon C.evening D.day

8.A.blamed B.encouraged C.praised D.accompanied

9.A.carry with B.care for C.cut up D.pick up

10.A.wherever B.whenever C.however D.whatever

11.A.ran B.stopped C.stood D.turned

12.A.participated B.breaks C.belongs D.corresponds

13.A.receives B.expects C.ignores D.takes

14.A.works B.goes C.agrees D.applies

15.A.as possible B.as well C.better than D.still less

高三英语完形填空困难题查看答案及解析

Could your cellphone give you cancer? Whether it could or not，some people are worrying about the possibility that phones，powerlines and wi-fi could be responsible for a range of illnesses，from rashes to brain tumors.

For example，Camilla Rees，48，a former investment banker in the US，moved out of her apartment in San Francisco because of the radiation coming from next door．Rees told the Los Angeles Times that when her neighbors moved in and installed a wi-fi router she lost her ability to think clearly．“I would wake up dizzy in the morning．I’d fall to the floor．I had to leave to escape that nightmare，” she saiD． Since then，she’s been on a campaign against low-level electromagnetic fields，or EMFs（低频电磁场）.

And she’s not alone．Millions of people say they suffer from headaches，depression，nausea and rashes when they’re too close to cellphones or other sources of EMFs.

Although the World Health Organization has officially declared that EMFs seem to pose little threat，governments are still concerneD． In fact，last April，the European Parliament called for countries to take steps to reduce exposure to EMFs．The city of San Francisco and the state of Maine are currently considering requiring cancer-warning labels on cellphones.

If these fears are reasonable，then perhaps we should all be worried about the amount of time we spend talking on our phones or plugging into wi-fi hotpots.

Some say there is evidence to support the growing anxieties．David Carpenter，a professor of environmental health sciences at the University at Albany，in New York，thinks there’s a greater than 95% chance that power lines can cause childhood leukemiA． Also there’s a greater than 90% chance that cellphones can cause brain tumors.

But others believe these concerns are unreasonable paranoia (猜疑)．Dr．Martha Linet，the head of radiation epidemiology at the US National Cancer Institute，has looked at the same research as Carpenter but has reached a different conclusion．“I don’t support warning labels for cellphones，” said Linet．“We don’t have the evidence that there’s much danger.”

Studies so far suggest a weak connection between EMFs and illness — so weak that it might not exist at all．A multinational investigation of cellphones and brain cancer，in 13 countries outside the US，has been underway for several years．It’s funded in part by the European Union，in part by a cellphone industry group．

According to Robert Park，a professor of physics at the University of Maryland in the US，the magnetic waves aren’t nearly powerful enough to break apart DNA，which is now known threats，such as UV rays and X-rays，cause cancer.

Perhaps it’s just psychological．Some experts find that the electro-sensitivity syndrome seems to be similar to chemical sensitivity syndrome，which is a condition that’s considered to be psychological.

Whether EMFs are harmful or not，a break in the countryside，without the cellphone，would probably be good for all of us.

高三英语填空题中等难度题查看答案及解析

The________of surfing the Internet is how you can tell whether the information is true or not.

高三英语单项填空中等难度题查看答案及解析

Whether in your life or work, the following things are not the reasons for you to feel embarrassed. It's OK and just move on.

1. Mistakes while learning

There will be times when you have people above you(a boss) or even next to you(a coworker) that will get really annoyed with you for“ruining"　 something "important".　 1.　　 Even if you make mistakes and get a punishment, persevere and push on. You do not need to be embarrassed for learning from your mistakes.

2.Food choices

People are different and have different taste buds（味蕾）.Whether it is healthy or not, food is a choice and it is part of life.　 2.　 You do not need to be embarrassed for food you do or do not like. Tell them, "It is a personal choice I have made, and I am committed to it.”

3．Your past

Allowing positive experiences to define, limit, improve, and outshine（凸显）you may cause you to be caught up in the past and unable to truly live in the present. Whether your history is positive, negative, or somewhere in between, don't hold on to the negative experiences and let it reflect your current behavior， 3.

4. The clean lines of your car／home／workspace

When everyone gets in the car, you realize your Starbuck bags are still on the floor. So what? Think about it this way: everyone has a"messy" aspect of their life. Maybe their home is completely clean, but the relationship with their spouse（配偶）is messy. Someone's car gets washed once a week, but his/her work life could use some help. 4. We don't apologize to others about our personal limitations. By being outwardly embarrassed, it only brings more attention to the fact!

5. Putting yourself first

If you find yourself saying no to something or making up lies to get out of it,tell them the truth,　 and don't apologize. You will feel much better in the long run if you are honest with them and yourself. If you're not up to a voluntary duty, you don't have to be. You can politely refuse the person's request.

5. Put yourself first.

A. It is simply a personal choice that people make for their own reasons.

B. It is okay to be selfish from time to time.

C. Errors are bound to happen when you have on your training wheels.

D. Each of them waits for your immediate help.

E. Let bygones(过去的事)　 be bygones.

F. Forgetting history means betrayal.

G. No one on Earth lives a perfectly " clean"　 life in every aspect.

高三英语七选五中等难度题查看答案及解析

Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources, as well as one of the oldest. Evidence shows that windmills(风车) began to be used in ancient Iran back in the 7th century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.

For many centuries, people used windmills to grind(磨碎) wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote(偏远的) areas began to use them to produce electricity. This allowed them to have electric lights and radio. However, by the 1940s when electricity was available(可利用的) to people in almost all areas of the United States, windmills were seldom used.

During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher costs. Today, there is a global movement to supply more and more of our electricity through the use of wind.

1.From the text we know that windmills__________.

A. were invented by European armies

B. used to supply power to radio in remote areas

C. have a history of more than 2,800 years

D. have rarely been used since electricity was discovered

2.What was a new use for wind power in the late 19th century?

A. Producing electricity.　　 B. Sailing a boat.

C. Grinding wheat into flour.　　 D. Pumping water from ground.

3.One of the reasons wind was rediscovered in the 1970s is that______.

A. the supply of coal and gas failed to meet needs

B. it is one of the oldest power sources

C. it was cheaper to create energy from wind

D. wind power is cleaner

4.The passage is mainly about______________.

A. the global pollution from burning coal and gas

B. the worldwide movement to save energy

C. the history of using wind power

D. the advantages of windmills

高三英语阅读理解中等难度题查看答案及解析

Think about the different ways that people use the wind. You can use it to fly a kite or to sail a boat. Wind is one of our cleanest and richest power sources, as well as one of the oldest. Evidence shows that windmills(风车) began to be used in ancient Iran back in the seventh century BC. They were first introduced to Europe during the 1100s, when armies returned from the Middle East with knowledge of using wind power.

For many centuries, people used windmills to grind(碾碎) wheat into flour or pump water from deep underground. When electricity was discovered in the late 1800s, people living in remote areas began to use them to produce electricity. This allowed them to have electric lights and radios. However, by the 1940s when electricity was available to people in almost all areas of the United States, windmills were rarely used.

During the 1970s, people started becoming concerned about the pollution that is created when coal and gas are burned to produce electricity. People also realized that the supply of coal and gas would not last forever. Then, wind was rediscovered, though it means higher cost. Today, there is a global movement to supply more and more of our electricity through the use of wind.

1.From the text we know that windmills________.

A. were invented by European armies

B. have a history of more than 2,800 years

C. used to supply power to radio in remote areas

D. have rarely been used since electricity was discovered

2.What was a new use for wind power in the late 19^th century?

A. Sailing a boat.

B. Producing electricity.

C. Grinding wheat into flour.

D. Pumping water from underground.

3.One of the reasons wind was rediscovered in the 1970s is that_______.

A. wind power is cleaner

B. it is one of the oldest power sources.

C. it was cheaper to create energy from wind

D. the supply of coal and gas failed to meet needs

4.What would the author probably discuss in the paragraph that follows?

A. The advantages of wind power.

B. The design of wind power plants.

C. The worldwide movement to save energy.

D. The global trend towards producing power from wind.

高三英语阅读理解中等难度题查看答案及解析