阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
Dogs were first raised at home at least 150 centuries ago. Since then, the dog 1. (be) humans’ best friend. Now, they have another job — to help doctors to diagnose (诊断) cancer.
After a long-standing research of smell, a Finnish professor has said that certain 2. (type) of cancer are able to be discovered by their smell, 3.(make) it possible to train cancer-sniffing dogs to help diagnose the disease.
A professor, JoukoVepsalainen from the University of Eastern Finland in Kuopio, has focused on nitrogen compounds (氮化合物). The compounds increase 4. (great) when cancer cells grow in an uncontrollable way, allowing them 5.(find) out, the Finnish newspaper Karjalainen reported. That’s where the dog, man’s best friend, may step in with their sharp sense of smell.
According 6. the news agency, researchers in Finland have tried to train dogs to do the job, but 7. will take a dog months, even years, to tell the 8. (different) between sick and healthy people. “Anyone 9. knows how difficult early cancer detection (察觉) is understands 10. a good opportunity this is,” associate professor Anna Hielm-Bjorkman of the University of Helsinki told the Finnish media.
When my son Gene was about 12 years old, I started helping him learn to _______ , I bought twenty chickens and asked him to _________ them. I told him that they would be his own chickens and we would ___________ the eggs from him. However, he would have to buy chicken ___________ with the money he made from the eggs. Whatever money was ___________ would be his to keep. Gene was ___________, thinking he would make _______ .
After several weeks’ successful work, I began to _________ that egg production was going down, I _______ nothing about it. Then one night, Gene told me he didn’t have ______________ money to buy the food. He said the chickens had never ______________ a meal and he could not figure out why some of them had stopped ______________ eggs.
Then I asked him if he had ____________ the amount of feed he had given the chickens. He was____________. It was like he did not think anyone would ever ____________ what he had done. After a long ______________he said yes. He thought he would make more money if he gave them __________ food. I asked him, “Did you fool the chickens?”
I was just astonished at the question in my own __________. I was dumbfounded (惊呆) at the __________ of it. Yes, you can fool everyone else, but you cannot “fool the chickens,” because __________ , you will find out, as the saying goes, “What goes around comes around.”
1.A.share B.cook C.count D.work
2.A.observe B.take care of C.train D.play with
3.A.borrow B.save C.buy D.keep
4.A.soup B.nest C.feed D.meat
5.A.picked up B.given back C.brought in D.left over
6.A.worried B.excited C.satisfied D.discouraged
7.A.devotion B.deal C.money D.choice
8.A.notice B.hear C.predict D.imagine
9.A.found B.said C.thought D.recalled
10.A.honest B.private C.pocket D.enough
11.A.wasted B.missed C.enjoyed D.finished
12.A.laying B.placing C.gathering D.hiding
13.A.checked out B.balanced C.cut down D.measured
14.A.shocked B.delighted C.tired D.disappointed
15.A.allow B.forgive C.discuss D.know
16.A.absence B.silence C.atmosphere D.preparation
17.A.fresher B.heavy C.solid D.less
18.A.job B.life C.mind D.ease
19.A.value B.explanation C.trick D.example
20.A.in the end B.in this respect C.in contrast D.in addition
Too much pizza, and too many video games…You need to make some life decisions to keep off the love handles(腰间赘肉). But be careful! 1. Here are the best ways for kids to lose weight.
Food first
It is very simple to see that if you eat a lot of foods with sugar and fat, you are probably in danger of gaining weight. Healthy diet might not taste as good, it might be more expensive, and it might be less convenient. 2.
Sweating with sports
Sports are a fun way to lose weight. Here are a few great sports that will make you sweat off all the extra fat: Football, basketball, tennis, gymnastics, running, badminton, and swimming. 3. The coach usually makes you work hard and exercise a lot.
A special sport
4. Yoga(瑜伽)helps to stretch(伸展)your body into strange positions about which you might feel uncomfortable at first; but as you get used to it, your body will thank you. Not only will yoga make you keep thin, but it will shape your body perfectly.
5.
Another way to lose weight is to avoid your parents’ car. By refusing to get rides to school, walking or biking to school will totally keep you in good shape.
It is never easy to lose weight. Everyone wants a quick and easy solution, but you have to realize that the best way to lose weight is to keep slow and lasting.
A.Parents’ guide
B.Kill the car
C.But it will bring you happiness and a great body.
D.One of the biggest trends to lose weight is yoga
E.Maybe you can’t lose weight for the first weeks and then you give up.
F.Joining a team with a coach is the best way to lose weight.
G.Losing weight in a wrong way can also be dangerous especially for kids.
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
It was not easy to buy a delicious pineapple more than 10 years ago. The fruits that made it to the UK were green on the outside and, more often than not, hard with an unpleasant taste within. Then in 1966, the Del Monte Gold pineapple produced in Hawaii first hit our shelves.
The new type of pineapple looked more yellowy-gold than green. It was slightly softer on the outside and had a lot of juice inside. But the most important thing about this new type of pineapple was that it was twice as sweet as the hit-and-miss pineapples we had known. In no time, the Del Monte Gold took the market by storm, rapidly becoming the world’s best-selling pineapple variety.
In nutrition (营养) it was all good news too. This nice tasting pineapple contained four times more vitamin C than the old green variety. Nutritionists said that it was not only full of vitamins, but also good against some diseases. People were eager to be able to buy this wonderful fruit. The new type of pineapple was selling fast, and the Del Monte Gold pineapple rapidly became a fixture in the shopping basket of the healthy eater.
Seeing the growing market for its winning pineapple, Del Monte tried to keep market to itself. But other fruit companies developed similar pineapples. Del Monte turned to law for help, but failed. Those companies argued successfully that Del Monte’s attempts to keep the golden pineapple for itself were just a way to knock them out of the market.
1.We learn from the text that the new type of pineapple is __________.
A.good-looking outside and soft inside B.green outside and sweet inside
C.a little soft outside and sweet inside D.yellowy-gold outside and hard inside
2.Why was the new type of pineapple selling well?
A.It was less sweet and good for health. B.It was rich in nutrition and tasted nice.
C.It was developed by Del Monte. D.It was used as medicine.
3.The underlined word “fixture” in Paragraph 3 probably refers to something _________.
A.that is always present B.that people don’t like eating
C.that is difficult to get D.that people use as a gift
4.We learn from the last paragraph that Del Monte _________.
A.succeeded in keeping the pineapple for itself
B.slowed other companies to develop pineapples
C.planned to help the other companies
D.tried hard to control the pineapple market
There is a test for you. Which way is the wind blowing? How many kinds of wildflowers can be seen from your front door? If your awareness (意识) is as sharp as it could be, you’ll have no trouble answering these questions.
Most of us observed much more as children than we do as adults. A child’s day is filled with, newness and wonder. Curiosity gave us all a natural awareness. But differences that were sharp to us as children become unclear; we are numb (麻木的)to new stimulation (刺激), new ideas. Relearning the art of seeing the world around us is quite simple, although it takes practice and requires breaking some bad habits.
The first step in awakening senses is to stop predicting what we are going to see and feel before it occurs. This blocks awareness. One cold night when I was hiking in the Rocky Mountains with some students, I mentioned that we were going to cross a mountain stream. The students began complaining about how cold it would be. We reached the stream, and they unwillingly walked ahead. They were almost knee-deep when they realized it was a hot spring (泉水). Later they all admitted they’d felt cold water at first.
Another block to awareness is the obsession (痴迷) many of us have with naming things. I saw bird watchers who spotted a bird, immediately looked it up in field guides to check its name, and said, a “ruby-crowned kinglet”. They no longer paid attention to the bird and never learned what it was doing.
The pressures of “time” and “destination (目的地)” are further blocks to awareness. I met many hikers who were headed to a distant camp-ground with just enough time to get there before dark. It seldom occurred to them to wander a bit, to take a moment to see what’s around them. I asked them what they’d seen. “Oh, a few birds,” they said. They seemed bent on their destinations.
Nature seems to unfold to people who watch and wait. Next time you take a walk, no matter where it is, take in all the sights, sounds and sensations. Wander in this way and you will open a new dimension (维度) to your life.
1.According to Paragraph 2, compared with adults, children are more ____________.
A.sensitive to others’ feelings B.anxious to do wonders
C.likely to develop unpleasant habits D.eager to explore the world around them
2.What idea does the author convey in Paragraph 3?
A.To avoid jumping to conclusions. B.To stop complaining all the time.
C.To follow the teacher’s advice. D.To admit mistakes honestly.
3.The bird watchers’ behavior shows that they __________.
A.are really attracted by nature B.are very patient in their observation
C.care only about the names of birds D.question the field guides
4.Why do the hikers take no notice of the surroundings during the journey?
A.The natural beauty isn’t attractive to them.
B.They focus on arriving at the camp in time.
C.The forest in the dark is dangerous for them.
D.They are eager to see the rare animals at the destination.
