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。
Do oil and water never mix together? Let’s do an experiment and find it out.
Here 1. what you need. You need a small soft drink bottle, some water, food coloring and two table-spoons of cooking oil.
Now I’ll tell you 2. to do. First, add a few 3. (drop) of food coloring to the water. Then, put about two tablespoons of the colored water along with the two tablespoons of cooking oil 4. the small soft drink bottle. After 5. (do) that, cover the bottle tight and shake it as hard as you can. Finally, put the bottle back down and have a look. It may have seemed as though the liquids were mixing together 6. the oil will float back to the top.
What’s happening? While water often mixes with other liquids, oil and water do not. Water molecules are 7. (strong) attracted to each other. This is 8. same for oil. They are more attracted to 9. (they) own molecules so they just don’t mix. The oil floats above the water because it is 10. (light) than water.
根据提示写出单词的正确形式。
1.It is advisable that you should a__________________ a recent photo of yours to your application form.
2.She was in a good m__________________ because she was accepted by the company.
3.The fire was s__________________ fast, but we were finally able to get all the people to leave the scene.
4.John Spencer p__________________ his first novel at his early twenties.
5.Standing on the top of the hill, you can get a wonderful v__________________.
6.Maybe you can come up with an _______________(可供选择的) suggestion concerning the location of the new market.
7.__________________(交流) between old and young people is not so difficult as you think.
8.You have to believe that NOTHING may __________________(逃脱) our teacher’s attention.
9.According to some philosopher, everything in __________________(存在) is reasonable.
10.We must continue to work until we find a peaceful __________________(解决办法).
Since I taught in southern China, I have learned a lot about Chinese life and culture and found them very interesting．
First, family life is quite ______ in China from that in the USA．In the USA, many young people ______ home after they finish their education and start working．However, in China, it is ______ for people to live with their parents until they get married．______ , many of my Chinese friends told me that their ______ lived with them and helped take care of them when they were children．It seems that Americans think independence is more important ______ the Chinese think family relationships are more important．
Bargaining is another ______ that I have tried to learn．In the USA, prices are ______ and you can’t ask for a lower price．However, in some small Chinese stores and tourist places, you are ______ to bargain．My Chinese friends taught me to ask for 40 percent or 50 percent ______ the original price．If the salesperson doesn’t agree to my price, I should ______ to leave and he might let me come back and sell me the item．It is a skill that you have to ______ if you live in China．
Tipping hasn’t been easier to ______ ．In the USA, many people in the service ______ want to get ______ money for serving customers．Tipping is not a part of Chinese culture．______ I tried to tip a taxi driver．He looked a little ______ and refused to take the money．
In dinners, perhaps what surprises an American visitor most is that some of the Chinese hosts like to put food into the plates of their ______ ．Actually, this is a ______ of true friendship and politeness．My Chinese friend told me if I didn’t want to eat it, I should just ______ the food in the plate．
1.A. different B. unique C. private D. harmonious
2.A. come B. build C. abandon D. leave
3.A. regular B. true C. usual D. common
4.A. Still B. Also C. Therefore D. Although
5.A. parents B. relatives C. grandparents D. babysitters
6.A. since B. while C. when D. as
7.A. custom B. way C. lesson D. habit
8.A. made B. agreed C. set D. charged
9.A. taught B. expected C. suggested D. required
10.A. up B. away C. on D. off
11.A. pretend B. decide C. promise D. hope
12.A. tolerate B. understand C. consider D. practise
13.A. turn to B. adjust to C. refer to D. stick to
14.A. area B. department C. industry D. branch
15.A. extra B. easy C. pocket D. prize
16.A. Once B. Often C. Sometimes D. Before
17.A. excited B. satisfied C. confused D. frightened
18.A. own B. children C. guests D. neighbors
19.A. signal B. mark C. feature D. sign
20.A. remain B. leave C. put D. taste
Like any good machine, the brain needs a little care and attention as it ages to ensure it continues to run in good working order. 1. .
Don’t lose faith in your abilities
As people get older, it’s easy to think that your memory is already poor. 2. . So if you do find yourself hesitating in a doorway not really knowing where you are meant to be, just see it as a reminder to push your memory a little bit harder.
Learn a language or a musical instrument
3., such as learning the piano or picking up a new language. Both rely on a wide skill set, exercising your memory, attention and so on.
4.
Obesity can harm your brain in many ways. The good news is that certain nutrients seem to reduce age-related damage to the brain. This may explain why older people eating a typically Mediterranean diet tended to show the same cognitive skills as people 7.5 years their younger.
Build your body
5.. Physical activity not only builds a better blood flow to the brain, but also increases proteins such as “nerve growth factor”. So just choose a training that suits your fitness.
A. Don’t feast on junk food
B. Benefit your brain from a healthy diet
C. We tend to lose confidence in our mental abilities
D. Here are some promising ways to sharpen your brain
E. You should consider a more ambitious mental workout
F. In fact, it is just as likely to happen to young and old alike
G. Getting in shape is one of the surest ways to build your mind
Children who spend more time outdoors may have a lower risk of becoming nearsighted, new research suggests.
In the study, researchers looked at about 1,900 schoolchildren. The scientists found that the kids who had been instructed to spend more time outdoors over three years were 23 percent less likely to develop nearsightedness during this time than those who had not been instructed to spend more time outdoors. Moreover, among the kids who did become nearsighted during the study, the degree to which their eyesight worsened was slightly smaller among those who spent more time outdoors.
The researchers selected six schools and required the children, whose average age was 7 at the start of the study, to attend one additional 60-minute class of outdoor activities during each school day for three years. The parents of these children were also encouraged to engage their children in outdoor activities after school, especially during weekends and holidays. The other half of the children, from another six schools, continued their usual activity patterns. After three years, 30.4 percent of the kids in the intervention(干预) group had become nearsighted, compared with 38.5 percent of the kids in the other group.
It is not clear exactly why spending more time outside would benefit children’s eyesight, the researchers said. However, some research has suggested that the higher levels of light intensity found outdoors may increase the release of the chemical dopamine(多巴胺) of the eye. In turn, dopamine is known to restrain the type of growth in the eye that is associated with nearsightedness.
Based on the new results, the researchers recommend that children spend more time outdoors because of the potential benefits to their eyesight. However, it’s important to protect kids’ skin and eyes from UV light, which can be damaging.
1.What did the children in the intervention group do during each school day?
A. Continue to do their usual activities.
B. Spend one hour in doing eye exercises.
C. Attend an extra class of outdoor activities.
D. Participate in outdoor activities with parents.
2.What can we learn about the chemical dopamine?
A. It can control people’s growth. B. It can lead to poor sight.
C. It means low levels of light intensity. D. It is good to eyesight.
3.What does the underlined word “restrain” in Paragraph 4 probably mean?
A. recover. B. increase.
C. limit. D. convey.
4.What may be discussed in the following paragraph?
A. How to prevent kids becoming nearsighted.
B. How to protect kids’ skin and eyes from UV light.
C. How to encourage kids to join in outdoor activities.
D. How to design outdoor activities for kids to cure their nearsightedness.
American Baylor spends most of his time in New York, working as a performer in the Broadway musical—The Lion King．But since 2011, he has also spent weeks in Kigali, the capital of Rwanda．There, he teaches dance to boys who live on the street．His teaching is part of an effort by the Rebecca Davis Dance Company．The project helps young people learn more about dance and learn how to behave in a classroom environment．
Baylor describes his students as genocide(种族屠杀) survivors. They have lost all of their families, some even have been in prison. “They have been through things that no one should ever have to go through,” said Baylor. Dance classes provide the children with structured learning and self-expression that they've never had before．They can also take classes in information and technology after they have learned to attend classes and follow directions．
Boys who have done best in the classes win scholarships and are sent to the Sunrise Boarding School．About 30 boys have won this kind of financial aid. All the students are male, because few girls in Rwanda live freely on the street.
The Rwanda program is the largest one set up by the Rebecca Davis Dance Company, founded and directed by Rebecca Davis. Ms．Davis has also set up dance programs in Bosnia-Herzegovina and Guinea．About 2,000 children in the three countries have taken part in the project since it was begun in 2010．
As for Baylor, he knows from his own experience how dance can lead to a better life. He is from Camden, New Jersey. Camden has sometimes been called America’s poorest and most dangerous city. Mr. Baylor says that growing up in Camden, it took a long time for him to find out what he wanted to do. He now thinks dancing saved his life.
1.It can be learned from the text that the children in Rwanda __________.
A. worked hard to win scholarships B. have committed violent crimes
C. have gone through tough times D. focused mainly on dancing
2.In how many countries are the dance program launched?
A. Two. B. Three.
C. Four. D. Five.
3.Which of the following in TRUE of the dance project?
A. Most children participating in it were boys.
B. It has gained much support from the world.
C. It is aimed to improve the kids’ dancing skills.
D. The project could date back to the year 2010.
4.What can be the main idea of the text?
A. Dance offers street children path to education.
B. The largest dance project was set up in Guinea.
C. Education is important to street children.
D. Where you grow up decides what you are.
