1 . Many animals hide (隐藏) to stay alive. They hide in many different kinds of ways.
| A．Lots of animals try to look big to stay alive. |
| B．Some animals hide in trees; some animals hide in snow. |
| C．Some animals will run away from them. |
| D．This helps them stay alive. |
| E．Their body can change into the same color as what is around them. |
2 . International Day of Friendship!
Good friends are really important for our happiness.
What makes a good friend?
A good friend is always there for you, whatever happens. They don’t judge you. They accept you, value you and respect you for who you are.
Friendship is so important that, in 2011, the United Nations decided to make a special day for it! The International Day of Friendship takes place on 30 July every year. The idea is that friendship between different groups of people, countries and cultures can help us live more peacefully together.
Friendship Days around the world
The International Day of Friendship on 30 July is not the only day celebrating friendship around the world.
The main purpose of the International Day of Friendship is to show your friends that you care about them and that you value their friendship. You could make a card or write a note telling them why they’re such a great friend. Whatever you do on this day, it’s a time to have fun and celebrate with friends, and perhaps make some new ones! Happy International Day of Friendship!
| A．They share good times with us. |
| B．Some countries celebrate on different days. |
| C．What is the International Day of Friendship? |
| D．You can be yourself when you’re around them. |
| E．What do people do on the International Day of Friendship? |
3 . In English, when someone is very angry, we say this person “sees red”, like the way a bull (公牛) goes wild after seeing a red cloth. Now it turns out that “seeing red” is not just an expression for angry people, but also a scientific fact.
Researchers at North Dakota State University in the US found that there is a connect ion between the color red and anger. Angry people really do “see red” where others don’t. And a preference (偏爱) for red over blue may even suggest a more hostile personality (性格).
The study includes a number of experiments. In the first, researchers asked a group of people which color they preferred, red or blue. Participants (参加者) then did personality tests. Results showed that those who chose red may be more hostile.
During a second test, participants looked at faded (褪色的) pictures that could be seen as either red or blue. Those who saw red scored 25 percent higher on hostility in the personality test.
“Hostile people have hostile thoughts; hostile thoughts are connected with the color red, and therefore hostile people see this color more often,” the researchers told The Independent.
Finally, the participants were told about imaginary (虚构的) situations in which they could take different actions. Results showed that in these situations, red-preferring people were more likely to show that they would hurt another person than those who preferred blue.
“An important message from this research is that color can send psychological (心理的) meaning,” the researchers said.
根据材料内容选择最佳答案。1. What does it mean by saying someone “sees red”?
| A．The person prefers red. | B．The person is very angry. |
| C．The person is able to see red. | D．The person likes to wear red clothes. |
| A．Unfriendly. | B．Polite. | C．Responsible. | D．Popular. |
| A．They did personality tests. |
| B．They looked at faded pictures. |
| C．They could take different actions in imaginary situations. |
| D．They were asked to choose which color they preferred. |
| A．Participants did personality tests in the study. |
| B．Participants took three tests in the study. |
| C．Participants were tested on seven different colors. |
| D．Red-preferring people were more likely to hurt others. |
| A．Why people like red more. | B．How important the study is. |
| C．Why red makes bulls wild. | D．How color influences personality. |
a. Getting fat. b. Having bad teeth. c. Sleeping less well. d. Making us younger.
| A．a, b, c | B．a, b, d | C．a, c, d | D．b, c, d |
| A．There are 4 g of sugar in 66 g of ice cream. |
| B．330 ml of cola has less sugar than three ice creams. |
| C．A woman can eat as much sugar a day as a man can. |
| D．We need more sugar when we are young. |
| A．Sugar can hurt our body. |
| B．Foods and drinks with sugar are popular with children. |
| C．We often have more sugar than we can without knowing it. |
| D．We should have enough sugar to make foods and drinks taste good. |
| A．To make us laugh. | B．To try to teach us skills. |
| C．To ask us not to waste sugar. | D．To advise us to eat healthily. |
| A．Nature. | B．Travel. | C．Health. | D．Education. |
Have you ever heard someone say, “breakfast is the most important meal of the day”, or give you advice about why
It seems that this feast (美味佳肴), for many of us, is necessary for our day to start well, but is it really that important? The word “breakfast” comes
So, while breakfast has its benefits, it might not be the most important meal. A balanced diet might be more important for many of us than just one single meal.
6 . There’s much to see under the sea, but you need to remember that light behaves differently in water than in air. The objects appear closer to you than they exactly are. You might find yourself reaching out to touch something and completely miss it.
Objects underwater will appear larger than they would on the surface, too. Be careful not to tell any stories about the big fish that got away. That fish might not be so big after all! It’s just because sometimes things can seem to be as much as about 33 percent bigger in water!
What’s more, in deeper water, colors just don’t seem as bright. In fact, it looks as if some colors are missing. Remember the color of an object results from the wavelengths (波长) of light that are reflected (反射) from its surface. And light is taken in as it moves down through the water.
Swimmers wear wet suits to keep warm underwater. Let’s take a bright red, yellow, and blue wet suit as an example. These colors are hard to miss on the surface of water. Watch carefully the changes in color as you descend in the water. The red part now looks almost black because the red light wavelengths, the longest among these three colors, are missing. As you go down deeper, the same thing will happen to the yellow part and in the end to the blue part. Even at a place of about 6 to 9 meters underwater, you will look terrible, like a ghost（鬼怪)! And you have to wait for your return to the surface to enjoy the bright colors again.
1. You miss the object underwater when you want to touch it because ________.| A．it disappears very quickly | B．it is not as close as it seems |
| C．you are not quick enough | D．your eyesight is quite poor |
| A．the weight | B．the position | C．the size | D．the color |
| A．下潜 | B．屏息 | C．增加 | D．上升 |
| A．You will see a ghost if you go as deep as 6 to 9 meters into the sea. |
| B．Much water will be taken in by the swimmer deep in the water. |
| C．The wavelengths of red light are longer than those of blue light. |
| D．A four-meter-long fish looks three meters long underwater. |
| A．The Behavior of Light Underwater | B．The Brightness of Color Underwater |
| C．The Direction of Light Underwater | D．The Standard of Color Underwater |
7 . We know mosquitoes (蚊子) very well. They can fly wherever they want to go.
Mosquitoes are one of many kinds of insects.
After enjoying a delicious meal from you, mosquitoes are lucky enough to run away. Now they are very tired.
When mosquitoes bite (叮咬) you, they may spread some diseases.
| A．You need to take action ahead of time to keep away from them. |
| B．During the whole process, they act quietly and quickly. |
| C．They have a small and light body. |
| D．We can find them all over the world. |
| E．They just want a good place to have a good rest. |
8 . China’s South-to-North Water Diversion Project (南水北调工程) is a huge project which has three water lines: east, central and west. Each water line is over 1,000 kilometers. The central line is over 1,400 kilometers long. It starts at Danjiangkou and runs through Henan, Hebei, Beijing and Tianjin. On such a long transportation journey, how can we make sure the water is clean and safe?
All year round, the instruments under the water are working for changes of water. If something unusual is found, the staff will take action right away.
The drones (无人机) over the water surface are flying to check the river. They can fly up to 400 meters in height and 5 kilometers in distance. The cameras carried by the drones can provide the water condition of the river. On these facts, people will know whether the water situation is safe or not.
Besides, the water from Danjiangkou needs to go through the “two nets” before entering the riverbed. Almost all the big floating (漂浮) objects on the water are kept off the gates. Then the cleaning robots will work much further against the small ones.
The staff are required to monitor the water quality every day so that every drop of water can meet the safety standard. The central line project includes 5 fixed laboratories, I mobile laboratory, 13 water quality monitoring stations...in Henan, Hebei, Tianjin, and Beijing. They are all working day and night to make people drink clean and safe water.
The primary purpose of the central line is to provide living water for the people along the line. So the water quality is of great importance. With those efforts, the water quality of the central line project meets the Class Ⅱ standard for surface water, Nearly 80 million people along the line get clean water from it since its opening in December, 2014.
根据材料内容选择最佳答案，并将其标号填入题前括号内。1. Where is Danjiangkou?
| A．To the south of Henan. C. To the west of Beijing. |
| B．To the north of Hebei. D. To the east of Tianjin |
| A．They can make the water level higher. |
| B．They can stop the big floating objects away from the gates. |
| C．They can keep the cleaning robots working safely. |
| D．They can protect the riverbed. |
| A．Watch and check. | B．Try drinking. |
| C．Put in different bottles. | D．Recycle properly. |
A． | B． | C． | D． |
| A．The purpose of South-to-North Water Diversion Project. |
| B．The background of South-to-North Water Diversion Project. |
| C．The way to keep the water from South-to-North Water Diversion Project safe and clean. |
| D．The introduction to the three water lines of South-to-North Water Diversion Project. |
| end; feeling; big; sing; even; afraid; make; health; you; because |
Are you shy about singing because you think you’re bad at it? Are you
One of the
Also, singing works your lungs (肺). It
Singing also does good to our
The benefits of singing don’t
Your singing may
10 . If you’ve ever thought that dogs seem to know when people are stressed (有压力的), you were right. Scientists did a study which showed that dogs can tell the difference between the smell of a person when they’re relaxed and when they’re stressed.
All day long, our bodies go through changes and produce different chemicals (化学物质). These chemicals come out in our breath and sweat (汗液), changing the way we smell. But it wasn’t known if stress could cause changes that could be discovered.
So the researchers collected breath and sweat samples (样本) from 36 different people. They got samples when the people were relaxed, and also when they were stressed. To stress people out, the scientists asked a really difficult math problem, and forced people to do it in their heads quickly. And they weren’t nice about it. They kept telling them to hurry up. That lasted three minutes. Then the researchers collected two more sweat and breath samples.
The scientists used one of the stressed samples, along with two clean pieces of cloth, to train the dogs to find the stressed smell. Then came the challenge (挑战) —the dogs had three choices: a sample from a relaxed person, a stressed sample from that same person, and a clean piece of cloth. In all, the dogs did 720 tests. They correctly identified the stressed sample about 94% of the time.
The results make it clear that stress does have a smell that dogs can find. Scientists say the news could be especially useful in training service dogs, since their job is to help people who have stress.
根据材料内容选择最佳答案。1. Why did the scientists use samples of breath and sweat to test the dogs?
| A．Because they make our bodies smell different. | B．Because our bodies become stronger day by day. |
| C．Because stress could be changed by sweat and breath. | D．Because our bodies produce different sweat every day. |
| A．By comparing facts. | B．By giving examples. | C．By describing the steps. | D．By showing the findings. |
| A．Hundreds of tests. | B．A clean piece of cloth. |
| C．The sample from different persons. | D．The sample from the same person. |
| A．提供 | B．交换 | C．阻止 | D．识别 |
A． | B． | C． | D． |
