Read the article and select the best answer. Article: You've heard of 3D printing from newspaper and TV programs. It can "print" in plastic, metal, nylon, and over a hundred other materials. 3D printing technology has been around since the 1980s, it was not widely used until the early 2010s. The first working 3D printer was created in 1984 by Chuck Hull. 3D printers use many different types of technologies, but they all share one thing in common: they create a three-dimensional object by building it layer , by continuing layer, until the whole object is completed. Imagine a baker lay down each layer one at a time until the whole cake is formed. 3D printing is somewhat similar, but just a bit stricter. How can 3D printers work so well? The most important thing-a program, a 3D printer also needs to have instructions for what to print from a computer. It needs a file as well. The file which is a Computer Aided Design (CAD) paper is created with the use of a 3D modeling program. The program creates a paper that is sent to the 3D printer. Along the way, software pieces the design into hundreds, or more likely thousands of layers. The 3D printer builds up one layer at a time, from the bottom to the top, until the object is done. 3D printings can be used for making many kinds of things such as machine parts, daily life objects, even human organs using a person's own cells. Nowadays, Marc. Dillon founds a project which deals with many world famous paintings like Leonardo da Vinci's Mona Lisa, Van Gogh's Sunflower with 3D technology. This project helps the blind people enjoy the fantastic art through touching. In order to provide a good user experience, these 3D paintings have special instruments which can tell people what they touch. Question: Which of the following is true? Options: A: 3D printers use 3 types of technologies. B: 3D printers make printings from the top. C: 3D printers work as a baker makes a cake. D: 3D printers piece the design into a few layers.
C

Read the article and select the best answer. Article: Do as the Romans Do The customs in different countries are rather different. If I have dinner with a Chinese host, he always puts more food onto my plates as soon as I have emptied it. That often discomforts me greatly. I have to eat the food even if I don't want to, because it is considered bad manners in the West to leave one's food on the plate. I have already noticed that when a Chinese sits at an American's dinner party, he very often refuses the offer of food or drink though he is in fact still hungry or thirsty. This might be good manners in China, but it is not in the West at all. In the United States, it is impolite to keep asking someone again and again or insist on his accepting something. Americans have a direct way of speaking. If they want something, they will ask for it. If not, they will say, "No, thanks." When an American is fed with beer by the host, for example, he might say, "No, thanks. I'll take some diet, Pepsi-Cola if you have it. "That is what an American will do. So when you go to the United States, you had better remember the famous saying: When in Rome, do as the Romans do. Question: When a foreigner has dinner with a Chinese host, he often feels _ . Options: A: pleasant B: uncomfortable C: satisfied D: happy
B

Q: Read the article and select the best answer. Article: Linda and Betty were both twenty years old. They studied in the same medical college. In June, after a school year was over, they decided to take a vacation in the country. They went to several towns and villages, and visited some places of interest, saw and heard a lot of interesting things. They enjoyed themselves very much. One afternoon, they were going to stay overnight in a small town. It was too hot to go further and they wished they could find a river and swim in the cool water. They were driving the car slowly while they were looking around. Suddenly Linda saw a lake not far away. They drove there fast and stopped the car by the lake. They looked around and found a man was sitting on a stone and fishing there. When they took their clothes and were going to jump into the water, the man came up to them and shouted," Sorry, Madams' swimming is not allowed in the lake!" "Why didn't you tell us about it before we took off our clothes?" Betty said angrily. "But it isn't to take off clothes by the lake," said the man. Question: Linda and Betty were _ . Options: A: classmates B: sisters C: doctors D: nurses
A: A

Question: Read the article and select the best answer. Article: Do you care about your memory ?The following ways can help improve your memory. Sleep: Sleep plays an important part in improving your memory. Enough sleep is very important to have a good memory. Don't watch TV while eating: Do not watch television while eating. Some people keep talking and eating while watching TV. Eating is a time when you can take a break from studying and rest your eyes. Healthy food: Healthy food is important for a healthy mind. Have milk, eggs, fish and fruits. These foods have a lot of nutrients Make the things interesting: If you find the things the teachers ask you to memorize interesting, you will memorize them more easily. For example, include music and different colors in the things you need to memorize. Repeat the things: Repeat the things by singing or talking. Repeating is a good way to memorize things. Exercise: Do exercise every day. It not only improves the body but improves the mind. Air in the morning keeps your mind clear. A clear mind is needed for memorizing things. Have a rest: Don't study for long hours. Have a rest from time to time. Studying for a long time will make you tired and you will find it harder to remember and learn things. Question: Which is NOT good for improving memory according to the passage? Options: A: Plenty of sleep. B: Healthy food. C: All work and a play. D: Repeating the things you need to memorize.
Answer: C

Read the article and select the best answer. Article: A rabbit is running into its hole. You may ask, "What happened?" Well, when a rabbit sees something dangerous, it runs away. Its tail moves up and down as it runs. When other rabbits see this tail moving up and down, they run too. They know that there is danger. The rabbit has told them something without making a sound. It has given them a signal. Many other animals use this kind of language. When a bee found some food, it goes back to his home. It cannot tell the other bees where the food is by speaking to them, but it does a little dance in the air. This tells the bees where the food is. Some animals say things by making sounds. A dog barks, for example, when a stranger comes near. A cat purrs when pleased. Some birds make several different sounds, each with its own meaning. But human beings have something that no animals have --- a large number of words about things, actions, feelings or ideas. We are able to give each other information, to tell or inform other people what is in our mind or how we feel. By writing words down we can remind ourselves of the things what have happened, or send messages to people far away. No animals can do this. No animals has the wonderful power of language. No one knows how man learned to make words. Somehow he learned to make them. As centuries went by, he made more and more new words. This is what we mean by language. People living in different countries made different kinds of words. Today there are about fifteen hundred different languages in the world. A very large English dictionary, for example, contains four or five hundred thousand words. But we do not know all these. The words we know are called vocabulary. We should try to make our vocabulary larger. Read as many books as possible. When we meet a new word, look it up in the dictionary. A dictionary is the Most useful book. Question: A dog can tell something _ . Options: A: by giving signals B: by making different sounds C: by purring D: by barking
B