I hope that ________ that I’ve been able to d...

I hope that ________ that I’ve been able to do is of some use to you.

A. a few     B. the few    C. a little     D. the little

高一英语单项填空简单题查看答案及解析

I hope ____ the little ____ I have been able to do has been of some use.

A. that; that       B. 不填；by which   C. what; what   D. 不填；with which

高一英语单项填空简单题查看答案及解析

It is said that many brain training products is able to keep us mentally fit. Some products even claim that brain training can prevent dementia (痴呆) in old age. Many such products are only money-making rubbish. Also, there is no scientific proof that games or other brain exercises can have this effect. That is what the German Institute for Quality and Efficiency in Health Care (IQWiG) pointed out.

As we get older, our thinking gets slower and it is harder for us to learn new things. Many people try to stay mentally fit by, for example, learning a new language or doing crossword puzzles. Computer games that aim to keep the brain active are also becoming increasingly popular. “Doing exercises like trying to find symbols on a computer screen as fast as possible can actually improve your reaction time,” explains Professor Peter Sawicki, the Institute’s Director. “But scientific studies have shown that brain training only leads to an improvement in one aspect that it is aimed at. So if you learn to find symbols quickly, it does not mean that you will be able to improve your memory.”

Research has not shown that brain training can keep up or enhance (加强) people’s overall (全面的) mental abilities as commonly thought. “So there is no need to feel bad if you do not enjoy brain training: there are no health reasons for doing it,” says Sawicki. “But if you think brain training exercises are interesting, you can try out different things. For example, completing the order of letters can improve your logic skills. And practicing word association techniques can help you to remember things better. You can do all of these things at home on your own.”

1.What can we learn about the brain training products according to the passage?

A.They are expensive. B.They are effective.

C.They are harmful to the brain. D.They are unreliable

2.According to Peter Sawicki, brain training exercises can________.

A.only improve a certain ability of people

B.help all people improve their memory

C.keep the brain active for a longer time

D.only improve your reaction time

3.The last paragraph shows that brain training exercises should be done_______.

A.when you can’t learn new things B.in a relaxing way

C.under strict instructions D.when your thinking gets much slower

4.On the whole, researchers think that brain training exercises_______.

A.aren’t as effective as commonly thought

B.are just designed for young people to have fun

C.may benefit people in some indirect ways

D.shouldn’t be encouraged

高一英语阅读理解中等难度题查看答案及解析

I am very grateful for your assistance, and hope that one day 1 may be able to do something for you__________.

A. in turn　　 　　　　 　 B. in case

C. in return　　　　　　 D. In use

高一英语单项填空中等难度题查看答案及解析

It is well known to us all that a lot of rivers _______by factories.

A.are polluting               B.have been polluting

C.are being polluting          D.are being polluted

高一英语单项填空简单题查看答案及解析

Dear students，

Most of us get some exercise walking or riding our bikes to school，but just that is not enough.Why not get into shape by playing the most popular sport in the world—soccer?

Two weeks ago，Mr Goldstein，the physical education teacher，posted a notice about an exciting new soccer club (for Grades 10－12)．To join，all you have to do is sign your name and be at school for the fun of it on Saturday mornings.You’ll make new friends and share information about famous teams and players.

Mr Goldstein will teach，so you’ll learn basic skills and new techniques to improve your game.That’s good news because soccer is a game you can love three seasons a year.The only time you can’t play is when there is snow.

However，it is hard to believe that only nineteen people signed up for the new club.Maybe kids don’t want to give up their Saturday mornings.But if you think about how we spend Saturday mornings now，soccer looks good.Doing housework and watching TV are not as much fun as playing soccer with friends.If you didn’t sign up because you’ve never played soccer before，don’t worry.Beginners are welcome and Mr Goldstein will give you more help.

Just act now! The equipment is cheap.All you have to bring is your feet.

The Students’ Union

1.What can we learn about the club?

A. It was probably started two weeks ago.

B. It is available every day except on Saturdays.

C. It was first set up for beginners.

D. It is just open to students of Grade 12.

2.What does the writer think of playing soccer?

A. It is as interesting as watching TV.

B. It makes people famous easily.

C. It is a very dangerous game.

D. It does students a lot of good.

3.The writer writes the passage mainly to 　　　　　 .

A. talk about how to be an excellent soccer player

B. introduce Mr Goldstein to the students of Grades 10－12

C. advise the students to take more exercise

D. encourage the students to join a soccer club

高一英语阅读理解中等难度题查看答案及解析

Tom worked very hard,  ______ that he would be able to buy a car of his own in two years.

高一英语单项填空简单题查看答案及解析

Have you ever wondered what wild animals do when no one is watching? Scientists have been able to record the “private” moments of wildlife with leading-edge technology. Low-cost, dependable and small modern cameras are of big help.

Cameras placed in hard-to-reach places have taken videos of everything from small desert cats to later snow loving felines (猫科) in the northern Rocky Mountains. These cameras are important tools to learn new information on wildlife.

Some videos help scientists see the effects of climate change. For example, the desert animal javelin and the tree-loving coatimundi have been caught on cameras north of their normal home. This could mean global warming is enlarging their living area northward.

Researchers use cameras along with global positioning systems, or GPS. They attach GPS devices (设备) to mule deer and antelope in and around Yellowstone National Park. Then they can record their movements, or migrations (迁移) . These cameras can be left in very rural (荒野的) areas for days, weeks or even month. They can provide information on how many animals are moving over a given period of time.

Rural video can show details about animal behavior, such as the calls made by migrating. Also some cameras record animal life and show everything from bison in Saskatchewan, Canada, to the underwater weed forest off California’s Channel Islands.

However, rural cameras have their problems too. Animals such as wolverines and bears sometimes attack them. Scientists do not know if the attacks are the result of anger or interest. Also, the devices have become popular tools to help hunters look for animals. Some people argue that it is unfair to use the cameras that way. Even with such problems, rural cameras are clearly an important scientific tool in researching wild animals.

1.Which of the following helps scientists know about climate change?

A. How active animals are. B. What animals eat.

C. Where animals go. D. When animals move.

2.Where are the cameras fixed?

A. Under water B. In the field

C. On GPS devices. D. On wild animals.

3.What may be the disadvantage of the rural cameras?

A. They affect animals' search for good.

B. They make wild animals puzzled.

C. They make animals attack one another frequently.

D. They might bring danger to animals.

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

A. Cameras Record Animals in the Wild B. Every Coin Has Two Sides

C. Animals No Longer Have Secrets D. An Invention Makes Animals Mad

高一英语阅读理解简单题查看答案及解析

Up to now nobody ________ able to do this better than Charlie Chaplin.

A. is            B. has been          C. was           D. will be

高一英语单项填空中等难度题查看答案及解析

Scientists from Australia declared that they were able to find out how some species of birds managed to develop the ability to recognize each other’s language. Together with his partners from the School of Botany and Zoology at the Australian National University in Canberra, Professor Robert Magrath discovered that fairy-wrens (细尾鹩莺) can learn the alarm calls produced by other species of birds.

Although scientists had known that some birds could understand the alarm calls of other species and use their ability to escape danger, it was unknown how they developed this ability. There were several assumptions.

Some researchers suggested that some species of birds were able to understand the alarm calls of other species due to the fact that they were born with the ability to react (反应) to calls that are somewhat similar. There was another assumption that all birds could learn alarm calls from different species over a certain period of time.

In order to find out which assumption was closer to the truth, scientists played the sounds of alarm calls of white-browed scrubwrens (白眉丝刺莺) to fairy-wrens that live side-by-side with white-browed scrubwrens in Canberra. Alarm calls of the two species are somewhat similar. The second step was playing recordings of alarm calls of white-browed scrubwrens to fairy-wrens that live 600 km away from Canberra, in Macquarie Marshes, the region where white-browed scrubwrens don’t live. The experiment showed that fairy-wrens living in Canberra fled (逃跑) but Macquarie Marshes fairy-wrens didn’t, which, according to Magrath, had to do with learning.

Another experiment involved playing recordings of a different alarm call produced by New Holland honeyeaters. Researchers said that after hearing the calls, the fairy-wrens fled, which means that they can learn calls completely different from theirs. “They have a very sharp perception (领悟力) of other species’ calls.” said Magrath.

However, some scientists had different opinions. For example, Professor Gisela Kaplan considered that learning was not the entire reason why birds fled after hearing the alarm calls. She considered that birds’ brain features an emergency pack which includes pre-programmed (预定程序) reactions at birth. The pack may be constructed of neurons that produce a basic reflex (反射作用) when it is touched off by auditory (听觉的) reactions.

“It could be that a certain sound, like a 6 kilohertz high-pitched frequency (频率), causes that basic reflex. Where the learned part comes in is the key to correctly tell whether somebody else is simply making a high-pitch call or whether it is an alarm call,” said Kaplan. She added that her team played the same recordings to magpies (喜鹊) at various distances and discovered that their reaction was different. “It depends on whether the bird’s sound is coming from within the magpie’s territory (领地). The difference can be as small as two meters,” she said.

1.According to Paragraph 2, alarm calls produced by birds mean _____.

A. they need to flee

B. there are visitors

C. there is something to eat

D. they need help to kill their enemies

2.From the experiment in Paragraph 4, we can infer that _____.

A. birds only understand alarm calls similar to theirs

B. birds are born to understand alarm calls of other species

C. birds understand alarm calls of other species by learning

D. white-browed scrubwrens are not enemies of fairy-wrens

3.Which of the following does Kaplan agree with?

A. Magpies react violently to a 6 kilohertz high-pitched frequency.

B. Magpies learn how to tell a high-pitch call from an alarm call.

C. Birds tend to give alarm calls if danger is within two meters.

D. The location of alarm calls is important to magpies’ reactions to them.

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

A. How do birds escape danger?

B. Birds can learn other species’ languages.

C. Birds have a sharp perception of alarm calls.

D. How do birds understand each other’s language?

高一英语阅读理解简单题查看答案及解析