---How far do they live apart?
---________I know, they live in the same neighborhood.
A．As long as B．As well as C．As far as D．As soon as
高三英语单项填空中等难度题
------How far apart do they live?
-----________I know, they live in the same neighbourhood．
A. As long as B. As tar as C. As well as D. As often as
高三英语单项填空中等难度题查看答案及解析
---How far do they live apart?
---________I know, they live in the same neighborhood.
A．As long as B．As well as C．As far as D．As soon as
高三英语单项填空中等难度题查看答案及解析
---How far do they live apart?
---________I know, they live in the same neighborhood.
A．As long as B．As well as C．As far as D．As soon as
高三英语单项填空中等难度题查看答案及解析
Plants and animals usually do not live apart, as in many ways they are important to each other. Most green plants can make their own food. The food of other living things, even the food of meat-eating animals, comes directly or indirectly from green plants. For example, some people eat mutton (羊肉); mutton comes from a goat; the goats eat grass. These steps, or links, make up what is called a food chain. Without green plants, all other living things would in time die of starvation.
Plants help animals in other ways too. They furnish homes and shelter for many animals. Many birds, as you know, build their nests in trees. Deer and many other animals use bushes for shelter. And even man depends much upon plants for his shelter. Animals repay some of this debt by helping plants. You may be aware that many insects and some birds do important work for plants by pollinating (授粉) them. You must have also learned how animals often help plants by spreading seeds.
What is waste material for one of these kinds of life is often valuable substance for the other. For example, animals give off carbon dioxide gas when they breathe. When plants make food, they absorb this gas from the air, using the carbon and releasing some of the oxygen back into the air. The oxygen that is released, then, is again supplied to animals. Thus the cycle continues, animals helping plants, and plants helping animals.
All plants and animals have their enemies. Insects eat plants; birds eat insects; other animals kill birds. But here too, animals such as birds and bats help the plants by destroying harmful insects. Many plants and animals are helpful to some living things but are harmful to others. Then there are other rules in nature that act as checks and balances. For example, if there are more animals in a certain area than there is food to support them, some of the animals must migrate or starve. In either case, the number of animals will be reduced until the balance between animals and the available food supply is restored.
These helps and hindrances (障碍) are constantly going on in the plant and animal world to achieve a balance. As long as one living thing is dependent on another, whenever the scales are tipped (使倾斜), nature takes steps to balance the scales again.
(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)
1.What does the author mean by saying “Plants and animals usually do not live apart”?
2.Besides providing food and shelter for animals, plants can also ______ to help animals to live.
3.“Checks and balances” refers to ______ in the world of animals and plants.
4.What will be the final result if some animals migrate or starve for lack of food?
高三英语其他题中等难度题查看答案及解析
听下面一段独白，回答以下小题。
1.Why do some children attend the School of the Air?
A. They live too far away from schools.
B. They are addicted to the Internet.
C. They are seriously disabled.
2.How long is each radio lesson?
A. 25 minutes. B. 30 minutes. C. 35 minutes.
3.How often do children send their work to teachers?
A. Once a week. B. Twice a week. C. Three times a week.
4.What do we know about the teachers of the School of the Air?
A. They never meet the students.
B. They teach five or six hours a day.
C. They send lessons to students by e-mail.
高三英语长对话或独白中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.What do we know about the speakers?
A. They are finding a place to live.
B. They both have plans for the future.
C. They are studying in a foreign country.
2.What does the man find hard to do?
A. Do the course in English.
B. Find his accommodation.
C. Understand other students’ jokes.
3.What is the woman busy with?
A. An essay. B. A job. C. An exam.
4.Why won’t the woman visit the man's university?
A. She is quite busy. B. She isn’t interested. C. She doesn’t have money.
高三英语长对话困难题查看答案及解析
Don’t be too ______ with your children. They know for sure what they will do and how to do it.
A. particular B. tolerate C. tough D. sympathetic
高三英语单项填空中等难度题查看答案及解析
Bowhead whales (弓头鲸) can live 200 years or longer. How they do it is no longer among the secrets of the deep. Scientists have mapped the genetic code of this long-lived whale species. The international effort found unusual features in the Arctic whale’s genes. Those features likely protect the species against cancer and other problems related to old age.
“We hope to learn what is the secret for living longer, healthier lives,” says João Pedro de Magalhães. He is a gerontologist (a scientist who studies old age) at the University of Liverpool in England. He also is co-author of the study that appeared January 6 in Cell Reports. His team hopes, he says, that its new findings might one day be used “to improve human health and preserve human life.”
No other mammal is known to live as long as the bowhead. Scientists have shown that some of these whales have lived well beyond 100—including one that survived to 211. For perspective, if he were still alive, Abraham Lincoln would be turning just 206 this year. De Magalhães’ team wanted to understand how the bowhead can live so long. To study this, the experts analyzed the animal’s complete set of genetic instructions, called its genome (基因组). Those instructions are coded in the animal’s DNA. The team also compared the whale’s genome to those of people, mice and cows.
The scientists discovered differences, including mutations (突变), in the whale’s genes. Those changes are linked to cancer, aging and cell growth. The results suggest that the whales are better than humans at repairing their DNA. That’s important because damaged or flawed DNA can lead to diseases, including some cancers.
Bowheads also are better at keeping abnormally dividing cells in check. Together, the changes appear to allow bowhead whales to live longer without developing age-related diseases such as cancer, says de Magalhães.
1.What do we learn about bowhead whales?
A.Their average life is 100. B.They are the longest-lived animals.
C.They don’t have aging problems. D.They live in the Arctic Ocean.
2.Why did scientists map the genetic code of bowhead whales?
A.To discover the secret of long life.
B.To find out a cure for cancer.
C.To prevent age-related diseases.
D.To lengthen human life.
3.Why does the author mention Abraham Lincoln?
A.To remind us of the time he lived.
B.To show the long life of the bowhead.
C.To compare him with the bowhead.
D.To express people’s respect for him.
4.What allows the bowhead to live a longer and healthier life?
A.Good DNA repair system. B.Gene mutation.
C.Cell division. D.Perfect living environment.
高三英语阅读理解困难题查看答案及解析
Why should most of us hate spiders when we know deeply how much good they do? Is it because they somehow seem so alien? After all, what other land creatures on earth have eight legs? What other creatures spin silk webs in which to catch and wrap their prey to preserve it for the future, much as we put food in the fridge to eat later? I do not personally suffer from arachnophobia, the name given to an abnormal fear of spiders, but I can't say that I like the little beasts. However, some people do, and they actually keep them as pets!
There is a wide variety of spiders in the world. In fact it has been estimated that there are some 35,000 species——from little "money spiders" that live in your back garden, to the "black widow spider", and the “tarantula” ，the spider that is now sometimes kept as a pet.
A tarantula can be any one of a large hairy spiders family and there are about 800 species of them. While experts can tell the difference between species at a glance, most are usually described in reference books as “rather slowly" with “a strong bite which may be poisonous”. They are covered with hairs which can cause a rash （皮疹）if they are handled.
No one has calculated the number of human deaths caused by a bite from a tarantula perhaps because it has never happened, or happened so rarely, and indeed a tarantula will do no harm to anyone if handled correctly. Their disgusting image cannot belie their gentle nature but experts tell us not to handle a tarantula without expert advice.
Tarantulas are popular as pets and it requires very little space to maintain them in excellent condition. They should be kept singly in a glass container, which need not be very large but should have a layer of stones in the bottom. They feed on insects, and while young tarantulas eat twice a week, adults will often eat no more than once every 10 days.
You might like the idea of keeping a tarantula, but personally I am content with just watching them at a distance.
1.According to the text, why do most people dislike spiders?
A.They are abnormal beasts.
B.They take food from fridges.
C.They have unpleasant appearance.
D.They make people suffer from arachnophobia.
2.What do we know about the tarantula?
A.It must be kept in groups.
B.It feeds on poisonous insects.
C.It doesn't belong to hairy spiders.
D.It has mild nature if handled properly.
3.What does the underlined word “it” in Paragraph 4 refer to?
A.The death caused by a tarantula.
B.The number of human deaths.
C.The bite from a tarantula.
D.The rash caused by hairs.
4.What's the best title for the text?
A.Never judge a book by its cover.
B.Nothing seek, nothing find.
C.No sweet without sweat.
D.Once bitten, twice shy.
高三英语阅读理解中等难度题查看答案及解析
根据短文内容，从短文后的选项中选出能填人空白处的最佳选项。选项中有两项为多余选项。
Do you want to know how to live an environmentally friendly lifestyle? Here is a short list of ways that you can help protect the environment.
★Prevent energy leaks（泄漏）at home.
Heating and cooling can make up to 50 percent of your energy bill each month. 1. So you'll save money and reduce your influence on the environment.
★Plant trees in your yard and community.
Everyone knows that planting trees can help the environment. 2. Trees cool your home, reducing the energy used for cooling. Trees improve mental health. Trees reduce noise pollution.
★ 3.
If you use ceiling fans during hot summer days, you can create a cooling environment. A few ceiling or regular fans properly placed in your home can reduce the amount of time you spend with the air conditioning on.
★Use solar energy more often.
4. There are lots of inexpensive solar products you can try out. For example, solar-powered lights. How about solar cell phone chargers? Additionally, there are many forms of passive solar energy that can help you take advantage of the sun.
★Think about green transportation.
Just sit and think about a few environmentally friendly ways you can get from one place to another. 5. You can walk or bike to the corner store. Walking instead of driving to a store is a great way to help the environment!
A. Trees have many good influences.
B. Use natural wind to dry your clothes.
C. There are many ways to use solar power.
D. Use ceiling fans to cool off in summer.
E. You can take a bus when going to the movie theater.
F. Turn off lights and electronic devices when you're not using them.
G. You can heat and cool your home more efficiently by fixing leaks.
高三英语七选五中等难度题查看答案及解析