________ an egg safe and warm, the male pengu...

________ an egg safe and warm, the male penguin keeps it on its feet for 60 days until the baby penguin hatches out.

A. Keep　　 B. Kept

C. Keeping　　 D. To keep

高一英语单项填空中等难度题查看答案及解析

It is so cold in Antarctic that the penguins have to stand _______to each other to keep warm.

高一英语单项填空中等难度题查看答案及解析

Starting the day on an egg could keep your blood pressure (血压) under control, research suggests. Scientists have shown that eggs produce proteins with a function similar to that of powerful pressure-lowering drugs.

The research, from the University of Alberta in Canada, showed that when eggs come in contact with stomach enzymes (酶) they produce a protein that acts in the same way as Ace inhibitors, but more work is needed to show the effects outside a lab and in the human body.

Earlier this month, British researchers declared that, contrary to popular beliefs, it is healthy to go to work on an egg. They concluded that the type of cholesterol (胆固醇) found in eggs has little effect on increasing heart disease risks.

Researcher Professor Bruce Griffin, from the University of Surrey, said: ‘The wrong beliefs linking egg eating to high blood cholesterol and heart disease must be corrected. The amount of fat in our diet has an effect on blood cholesterol that is several times greater than the relatively small amounts of cholesterol found in eggs. The UK public do not need to be limiting the number of eggs they eat. They can be encouraged to include them in a healthy diet as they are one of nature’s most nutritious foods.”

The British Heart Foundation dropped its three-egg-a-week limit in 2005. However, almost half of Britons believe the limit still applies.

1.From the text we know that Ace inhibitors are 　　　　 .

A. a kind of medicine　　 B. a kind of protein

C. a kind of illness　　 D. a kind of food

2.According to what Professor Bruce said, eggs 　　　　 .

A. are the most nutritious food.

B. have no effect on blood cholesterol

C. can be included in a healthy diet

D. are forbidden to be eaten in the UK

3.We can infer from the text that 　　　　 .

A. drugs to lower blood pressure will be replaced by eating eggs

B. stomach enzymes mixed with eggs can cure heart diseases

C. most Britons agree the three-egg-a-week limit should be dropped

D. about 50% of Britons think eating an egg a day is bad for their health

4.The text is meant to 　　　　 .

A. introduce scientific findings about eggs

B. introduce a medicine made from eggs

C. tell people how to lower their blood pressure

D. advise people to eat as many eggs as possible

高一英语阅读理解简单题查看答案及解析

When the weather turns warm, everyone wants to be in or around the water. Learning how to keep safe is necessary if you plan to go swimming.

“Buddy up!” Always swim with a partner, every time-and this is very important. Even experienced swimmers can become tired or face sudden accidents, which might make it difficult to get out of the water. When you swim together, you can help each other or go for help in a minute.

Get skilled. It’s good to go be fully prepared. Learning some life-saving skills can help you save a life. A number of organizations offer free classes to both beginning and experienced swimmers and boaters. Check with local hospitals, or the Red Cross.

Know your limits (极限). Swimming an be a lot of fun and you might want to stay in the water as long as possible. If you’re not a good swimmer or you’re just learning to swim, don’t go in water that’s so deep for you and don’t try to keep up with skilled swimmers. That can be dangerous, especially when your friends are challenging you.

If you are a good swimmer and have had lessons, keep an eye on friends who aren’t as comfortable or as skilled as you are. If they or you are getting tired, you should take a break for a while.

Swim in safe areas only. It’s a good idea to swim only in places that are directed by a lifeguard. No one can expect changing ocean currents (水流), sudden storms, or other dangers. In the event that something does go wrong, lifeguards trained in life-saving skills are ready to help.

Swimming in an open body of water like a lake is different from swimming in a pool. Do your research so you know where not to swim, and pay attention to any warning sign(警告标志) posted in the area.

高一英语其他题中等难度题查看答案及解析

Spring is here and so is the cycling season. Here are some tips on how to do it safely and comfortably.

Watch your feet—Pushing with the wrong part of the foot can raise your risk of developing a painful injury of the heel and arch（脚心）, says Rob Werstine, a sports physiotherapist（理疗师）and board member of the Canadian Physiotherapy Association.  You should push with the ball of your foot, he says.

Layer up—While it’s still cool, wear layers of clothing, with clothing close to the body that breathes and outer layers that do not absorb water. Go for bright colors that increase your visibility（可见度）.

Be reasonable—If you are just starting out and aren’t in good shape, don’t sign up for a 50-kilometre ride. And while cycling is great exercise for people who want to get into shape, if your doctor advises you not to do tiring exercise, cycling shouldn't be your starting position, Werstine says. Walk to begin getting into shape and then graduate to cycling.

Fix the fit—If you develop lower back pain or numbness in your hands and fingers from cycling, it could be your bike isn’t adjusted properly for your height. A good cycle shop can help you find the right height for the seat and handlebars, but if you have continuing problems, consider consulting a bike fit physiotherapist, Werstine says.

Be mindful—You have to pay attention on the roads to vehicles, other cyclists and pedestrians（行人）.Consider taking a cycling safety course to practise your skills. Or do some reading about how to avoid dangerous cycling situations. bicyclesafe.com, for instance, lists 10 types of car-bike accidents and how to avoid them.

1.Which part of the foot should one use when cycling?

A．The heel.          B．The arch.          C．The ball.          D．The toes.

2. From Paragraph 4 we can conclude______.

A．not everyone can exercise by cycling        B．walking is better than cycling

C．cycling is popular with people              D．cycling is helpful to everyone

3.According to the last paragraph, if you want to avoid danger when cycling, you should ______.

a. consider taking a cycling safety course

b. search for information on bicyclesafe.com

c. consider consulting a bike fit physiotherapist

d. adjust the bike properly for your height

A．a. c              B．c. d              C．a. b              D．b. d

高一英语阅读理解困难题查看答案及解析

It was on a warm day last summer. I was walking by the sea. The waves came and went. But I didn’t see them. I was lost in my thoughts.

A row of small holes soon caught my eyes. They lay in the sandy earth by the side of a road. In a minute I would have stepped on them.

What are these holes? I wondered. It had an answer soon. A fat, hairy insect crawled up from the earth. It had a wide tail. It was using the tail to dig in the ground.

The insect moved round and round in one spot(地点). Soon it had made another hole. When it was finished, the insect hid at the bottom. It covered its head with sand.

By now my thoughts of the early morning had gone. This new hole and the insect were all my world. So I sat quite still by the side of the road. And I waited.

As I watched, a small ant crossed the road. It passed my foot, and then it crossed the sandy earth. In a little while it reached the edge of the hole. I saw it start to fall in. The ant tried to turn back. But it couldn’t.

And then I knew. I knew why the holes were there. For just then the fat insect came up out of the hole. It ate the ant who was trapped there.

Later I learned the insect’s name. It’s called ant lion. It digs holes to catch ants.

I’ll never forget that day. The holes looked so small to me. But to the ant and the ant lion they were the whole world.

I took my walks by the sea that summer. But I never again learned as much as I did on the one.

1. What did the ant lion use to dig holes?

A. Its tail       B. Its feet.            C. Its head         D. Its whole body

2. Why did the ant lion hide in the hole?

A. To keep the sun away           B. So no one would catch it.

C. So the ant wouldn’t see it        D. To keep warm.

3. Why did “I” sit down by the side of the road?

A. To think                           B. To eat her lunch

C. To watch the little holes          D. To catch ants.

4.Why did the ant lion dig the holes?

A. To play a game                 B. To catch its food

C. To hide its eggs                   D. To hide from its enemy

5.Why did “I” never forget that day?

A. Learned something          B. Had a nice time

C. Saw the ant lion whenever she took a walk

D. Felt sorry for the ant.

高一英语阅读理解中等难度题查看答案及解析

Nowadays, a hospital always manages to keep its beds full. This is good on the one hand, and it’s bad on 36  hand.

One day, I went to see a sick friend at the hospital. I first went to the 37  desk, where I could get a permit to visit the patient.

38  I could ask which room my friend was in, the lady set down my name, age, filled out a form and 39  a bell. I was just about to tell her what I was coming for when two men arrived with a wheelchair, 40  me in it and pushed me down the hall.

“I’m not 41 ,” I shouted. “I’m just looking for a friend.”

“When he comes,” one man said, “we’ll 42  him up to your room.”

In a minute I 43  myself in a small room. In no time they undressed me and covered some other things 44  me. One man said “If you need anything, press the button.”

“I want to get my 45  back.” I begged.

“Oh, you can 46  us,” a voice said, “Even if the 47  happens, we will see that your wife will get everything.” They left and locked the door 48  them.

I was trying to think of how to escape by the door when Dr. Ward came in with several of his 49 .

“Thank God you finally came,” I said.

“It hurts that badly?” he asked.

“No, on the contrary, I am not ill 50 .”

Dr. Ward looked 51 . “If you don’t feel any pain, that means it’s much more 52  than we expected.” Then he turned to his students, “This is the most difficult kind of patient to deal with because he refuses to 53  that he is ill. __54__ he won’t tell us where it hurts, he will never be well again until we find the hurt out for 55  by doing exploratory surgery (手术探查) .”

1.A. another            B. other            C. the other        D. others

2.A. meeting           B. office          C. information      D. medicine

3.A. Before            B. Until          C. While         D. When

4.A. beat               B. rang          C. struck         D. took

5.A. pushed            B. placed          C. pulled        D. invited

6.A. well              B. sick            C. good            D. healthy

7.A. command          B. carry           C. send          D. order

8.A. found            B. realized        C. felt            D. understood

9.A. on               B. from            C. up              D. to

10.A. money           B. friend            C. clothes               D. form

11.A. upset            B. expect           C. wonder       D. believe

12.A. best             B. hardest         C. worst           D. easiest

13.A. behind           B. before         C. beside         D. by

14.A. friends           B. students         C. relatives          D. teachers

15.A. at al             B. in all           C. after all          D. above all

16.A. excited          B. worried        C. satisfied         D. surprised

17.A. interesting        B. comfortable    C. serious         D. pleasant

18.A. add              B. settle            C. concern        D. recognize

19.A. Before           B. Since            C. When            D. As soon as

20.A. himself          B. themselves       C. yourselves       D. ourselves

高一英语完型填空中等难度题查看答案及解析

Do 　　　　 in case of fire and find the safe way out.

A. keep cool　　 B. keeping cool　　 C. not stay calm　　 D. staying calm

高一英语单项填空困难题查看答案及解析

Penguins are flightless birds that spend half their time on land and half in the water.

1. They have dark and white feathers, and their wings have evolved into flippers (脚蹼). Most penguins feed on fish, squid and other forms of sea life caught while swimming.

2. They are mostly found in groups that include thousands of penguins. Penguins each have their own unique mating call, and they use that to locate their mate and chicks in such a large group.

Although almost all penguin species are native to the Southern Hemisphere, they are not found only in cold Antarctica.3. Several species are even found in the temperate zone, and one species, the Galátpagos penguin, lives near the equator (赤道).

Unfortunately, many penguin species worldwide are facing threats. The biggest is climate change and global warming. As the earth warms up, the sheets of ice have melted, and the algae (藻类)that grow under the ice decrease. The algae are eaten by tiny creatures called zooplankton. When there is a drop in zooplankton, it affects the fish that depend on it.4.

Another major threat is from oil spills. If coated with oil, penguins cannot float or swim in water. Also, if oil is swallowed, penguins will die from poison.5.

A.These birds are very social.

B.In fact, only a few of them live so far south.

C.Penguins are highly adapted for life in the water.

D.The biggest threat for penguins comes from humans.

E.They have a tendency to live in a community together.

F.As a result, penguins have less fish to eat and thus starve.

G.Others include overfishing, illegal egg harvesting, and natural enemies.

高一英语七选五中等难度题查看答案及解析

阅读理解。

The kings of ancient Egypt planned strong tombs to keep their bodies safe after death and to hold their treasure.The Great Pyramids along the Nile are on its west bank.The ancient Egyptians compared the rising of the sun to the beginning of life and the setting of the sun to the end of life.This is why their dead bodies were buried on the west bank of the Nile.

The people of Mexico also built pyramids.They did not build the pyramids for tombs.They used to build a pyramid and then a temple on top of it.The pyramids of Mexico are not as high as the pyramids of Egypt,but they are bigger.Each of the pyramids has a wide stairway(楼梯) that goes from the bottom to the top.

The biggest pyramid in Mexico is almost 2,000 years old.Scientists think it took 10,000 men more than ten years to build it.On the top they built a temple of the sun.The temple is no longer there,but people still call it the Pyramid of the Sun.Near it is another huge pyramid,the Pyramid of the Moon.

1.In ancient Egypt pyramids were built 　　 .

A.in honour of the gods

B.for the kings’ tombs

C.for visitors to see

D.as places of interest

2.All the pyramids along the Nile are on its west bank,because in ancient Egypt people thought 　　 .

A.they died in the west

B.the sun sets in the west

C.the end of their lives was like the setting of the sun

D.they would go to the west after death

3.Which of the following is TRUE?

A.The pyramids of Mexico are as big as those of Egypt.

B.The pyramids of Egypt are not higher than those of Mexico.

C.The pyramids of Mexico are just the same as those of Egypt.

D.The pyramids of Mexico are quite different from those of Egypt.

4.The pyramids in ancient Mexico were built 　　 .

A.for the kings　　　　　　　 B.for the people

C.for wars　　　　　　　　　　 D.for the gods

高一英语阅读理解中等难度题查看答案及解析