3D printing is becoming more and more popular． We are now able to print things such as clothing， musical instruments and even cars． People and businesses are able to create the things they need very quickly and easily by using 3D printers．
But can you imagine printing food？ Some scientists are trying to change the dining experience completely by doing this． They hope that having a 3D printer in the kitchen will become as common as the blender or microwave． Scientists say that they are easy to use ：you simply have to choose a recipe（食谱） and put the uncooked food "inks" into the printer to make the food you want． This means that it would be very quick and easy to create tasty and healthy meals．
Using 3D printers to create your meals would also be saving the environment． There would be less need for traditional growing， shipping and packaging steps as food production would be a lot quicker and better． For example， tree leaves and insects could be turned into tasty products! Printing food could also help people who have a swallowing（吞咽）trouble． They could program the printer to print softer kinds of their favorite foods so that they would not have difficulty swallowing them．
However， some people think that a future of 3D﹣printed food would be a disaster． It could take away many jobs， including those for growing， shipping and packaging food． Imagine a world where there was no need for farming or growing crops and the same tastes and structures could be printed from an uncooked "food ink "． Traditional cafes and restaurants might lose business， too．Also， there are worries about the healthy value of printed food： is it really possible to get what we need from food﹣based "inks" or something like that？
As we know， cooking and eating together with family and friends has long been a tradition and enjoyable activity． It is hard to imagine a world where the pastime of cooking is dead and meals can be created at the touch of a button．
（1）The second paragraph mainly tells us ．
A． we can change our recipes by 3D food printing
B． there are many ways of printing food on the 3D printer
C． 3D food printing has become very common in the kitchen
D． some scientists are trying to make 3D food printing used widely
（2）The writer gives the example in Paragraph 3 in order to ．
A． show us how 3D food printing works
B． tell us why we should use 3D food printing
C． help us to know what we can use to print food
D． let us understand when to use 3D food printing
（3）How many disadvantages of 3D food printing are mentioned from the last two paragraphs？
A． Two．
B． Three．
C． Four．
D． Five．
（4）What is the writer's opinion about 3D food printing？
A． 3D﹣printed food is tasty and necessary．
B． It is difficult to understand 3D food printing．
C． Cooking food is more pleasant than printing food．
D． It is happy to see the change of the dining experience．
For hundreds of years, scientists have been trying to answer what things have an effect on people’s emotions. How you feel is controlled by many things. Your emotions can be affected by your personality, the actions of others and the events around you. Perhaps you don’t know your emotions can be influenced by the weather as well.
People often say they feel good when the sun is shining and sad when it is cloudy.
In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are chemical substances ( 化学物质) which we all need to stay healthy.
Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical substance. This special chemical substance affects our brains(大脑) and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical substance which makes them feel good. To help the people in these countries feel better, special “ sunrooms” with artificial( 人造的) lights have been built.
People can go there and get “ sunlight” for an hour or two !
The weather can also affect people’s emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemical substances which control our brains. Through these ways, the weather can inflience our emotions. Sadly , while the weather can change us, we can hardly change the weather.
| The |
|
| What influences people’s emotions? |
Your personality, the around you and the weather |
| How are our emotions influenced by the weather ? |
Hot weather: We feel angry |
| Conclusion |
The weather can influence our emotions influences the chemical substances that control our brains. The weather can change us, but we can do |
A little old man and his wife walked slowly into McDonald’s on a cold winter evening. They took a table near the back wall, and then the little old man walked to the cash register to order. After a while he got the food back and they began to open it.
There was one hamburger, some French fries and one drink. The little old man carefully cut the hamburger in half and divided the French fries in two piles. Then he neatly put the half of the food in front of his wife. He took a sip of the drink and his wife took a sip. “how poor the old people are!” the people around them thought. As the man began to eat his hamburger and his French fries, his wife sat there watching him and took turns to drink. A young man came over and offered to buy another meal for them. But they refused politely and said that they got used to sharing everything.
Then a young lady asked a question of the little old lady. “ Madam, why aren’t you eating? You said that you share everything, then what are you waiting for?” She answered, “The teeth.”What did the old man order?
| A．One hamburger and one drink. |
| B．Some French fries and two cups of coffee. |
| C．One hamburger, some French fries and one drink |
| D．Some fries and drink. |
What did they do after they opened the food?
| A．They left McDonald’s. |
| B．They shared the food. |
| C．They began to look for seats. |
| D．They began to order another one. |
What’s the meaning of the underlined phrase “took a sip”?
| A．Drank something slowly | B．Had a rest. |
| C．Had some snacks. | D．Taste it. |
As the old man began to eat things, his wife sat there ____________.
| A．talking with him |
| B．looking at him quite angrily |
| C．watching him and took turns to drink |
| D．reading a newspaper |
What can we know from the whole passage?
| A．The old lady wasn’t hungry at all. |
| B．The two old people shared the same teeth. |
| C．The old lady had a toothache. |
| D．They are very friendly. |
Many scientists find that colours can change people’s feelings. It’s very interesting. Some colours can make people feel relaxed，and some colours can make people feel nervous. Now，this kind of knowledge is being used in many places. For example, school walls are always painted green because green makes students feel relaxed. It is also good for the students’ eyes. Some books are also green or light blue for the same reason. Restaurant owners not only have to know how to make food，but also have to know how to make money. Here are some things they’ve learned from scientific studies. The colour red makes people hungry. Many fast food restaurants have red furniture or walls. Soft colours like pink and light blue make people feel relaxed，so they spend more time eating. Loud music may be nice at first，but it soon makes people want to leave. Hard seats also make customers want to eat quickly and leave. Many restaurants，especially fast food restaurants，use this knowledge to make customers eat faster.How does the colour green make the students feel？
| A．Hungry. | B．Nervous. | C．Angry. | D．Relaxed. |
How does the colour red make most people feel？
| A．Hungry. | B．Comfortable. |
| C．Excited. | D．Worried. |
Which colour isn’t mentioned in this passage？
| A．Green. | B．White. | C．Light blue. | D．Red. |
What do many fast food restaurants do？
①Play loud music. ②Play soft music.
③Have hard seats. ④Paint their walls red.
| A．①②③ | B．①③④ |
| C．①②④ | D．②③④ |
What’s the best title for this passage？
| A．Colour and restaurant. |
| B．Use colours to make money. |
| C．Colours and science |
| D．Use colours to change feelings. |
Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves.
Some birds like eating locusts，but birds cannot easily catch them. Why? It is because locusts change their colours together with the change of the coloursof crops. When crops are green, locusts look green. But as the harvest time comes, locusts change to the same brown colour as crops have. Some other pests with different colours from plants are easily found and eaten by others. So they have to hide themselves for lives and appear only at night.
If you study the animal life, you’ll find the main use of colours is protecting themselves. bears, lions and other animals move quietly through forests. They cannot be seen by hunters. This is because they have the colours much like the tree.
Have you ever noticed an even more strange act? A kind of fish in the sea can send out a kind of very black liquid when it faces danger. While the liquid spread over, the enemies cannot find it. And it immediately swims away. So it has lived up to now though it isn’t strong at all.From the passage we can learn that locusts.
| A．are small animals |
| B．are easily found by birds |
| C．are dangerous to their enemies |
| D．change their colours to protect themselves |
How can pests with different colours from plants keep out of danger?
| A．They run away quickly. |
| B．Their colours are much like their enemies. |
| C．They hide themselves in the day and appear at night. |
| D．They have to move quietly. |
Bears and lions can keep safe because they.
| A．have the colours much like the trees |
| B．move quickly |
| C．like brown and grey colours |
| D．live in forests |
The kind of fish can live up to now because .
| A．it is very big and strong |
| B．the liquid it sends out can help it escape from its enemies |
| C．the liquid it sends out can kill its enemies |
| D．it swims faster than any other fish |
Which is the best title for this passage?
| A．The Change of Colours for Animals and Pests |
| B．Colours of Different Animals and Pests |
| C．The Main Use of Colours for Animals and Pests |
| D．Some Animals and Pests |
If you go to a fast food restaurant, you will probably see a lot of teenagers. Today, many teenagers are overweight, and reason of this is because of their bad eating habits. Most teenagers love fast food with a lot of fat, oil, salt and sugar. People often call this kind of food “junk food”.
But bad eating habits go beyond fast food. We find many teenagers eat unhealthily. Some don’t have breakfast before they go to school. During the day, some don’t have a proper meal for lunch. In a recent survey at one school, scientists found that over two thirds of the students didn’t follow a healthy diet. They didn’t like vegetables, and many of them didn’t like to eat fruits. They preferred to eat food with a lot of salt, sugar, or fat.
Parents today also worry about their children’s diet. Some doctors give the following advice:
Teenagers shouldn’t eat too much junk food.
Teenagers shouldn’t eat food with too much salt. Salt can cause high blood pressure（高血压）in the future.
Teenagers should eat food with less fat, oil, and sugar.
Teenagers need to eat some fruits and vegetables every day. Fruits and vegetables are rich in vitamins（维生素）and have little fat.
Teenagers need to drink more milk. Milk will help their bones grow.
Teenagers need to eat breakfast every day. This is good for their body and mind.“Junk food” contains（包括）a lot of _____.
| A．milk and sugar |
| B．fruits and sugar |
| C．vegetables and salt |
| D．fat, oil, salt and sugar |
In a recent survey at one school, scientists found many students liked _____.
| A．vegetables | B．fruits |
| C．healthy food | D．unhealthy food |
What does the underlined word “beyond” mean in Chinese in this passage?
| A．超出 | B．不如 | C．相等 | D．在后面 |
In this passage doctors think that teenagers should eat more _____.
| A．food with no vitamins | B．fat and sugar |
| C．vegetables and fruits | D．salt and oil |
The best title for this passage is _____.
| A．Bad Habits | B．Junk Food |
| C．Unhealthy Food | D．Advice on Healthy eating |