Sugar—free beets(甜菜)that still taste sweet, tastier tomatoes and brighter-colored fruits and vegetables that stay ripe(熟的)longer are all foods that are being grown now. How can they
carry traits, such as being tastier, brighter, and riper? They are genetically engineered.
Genetic engineering(基因工程)is like making a change in a recipe. For example, when you make cakes, you mix together all of the usual ingredients. If you add an extra ingredient, like salt, the cakes will taste differently.
Genes are ingredients in the recipe for life. They carry the traits of living things. Your genes dictate what color hair and eyes you’ll have, how tall you’ll be, as well as many other traits. Genes carry traits for plants, too. By adding genes to a plant, you can sometimes create new traits. For example, adding a certain gene to a potato plant can make the potato plant distasteful to bugs(虫子). This makes some farmers happy because they don’t have to use chemicals to keep bugs away from their plants.
It sounds great, but some people are opposed to the idea of food that is genetically engineered. Ronnie Cummins, from the Campaign for Food Safety, is against it. He says that one of the major concerns is allergies(过敏). Supermarkets don’t always label foods that are genetically engineered. A customer could unknowingly buy food that has an added gene from another plant that he or she is allergic to. It could be dangerous.
Gary Burton from Monsanto, a seed(种子)company that engineers food, disagrees. He says his company tests for allergies. Burton believes that genetic engineering is a valuable tool for making better food. The technology can help farmers use less insecticide(杀虫剂)and grow healthier crops. Burton thinks there are many advantages.
But Cummins says that we just don’t know what will happen in the future if we keep adding genes to foods. We could mistakenly create a monster.
People have different opinions about genetic engineering. One side supports it and thinks it will only help us. The other side is opposed to playing with nature and fears health risks. Which side do you think is right?What could be a good thing about food that is genetically engineered?
A.It’s more expensive. |
B.It could taste different. |
C.It requires less insecticide. |
D.It’s not labeled in the supermarket. |
In general, who does not support the idea of genetic food?
A.People from seed companies. |
B.Farmers who use engineered seeds. |
C.People from the Campaign for Food Safety. |
D.Scientists who create genetically engineered food. |
It can be inferred that .
A.growing genetic foods will make farmers richer |
B.people will eat more genetic foods in the future |
C.using fewer chemicals could make the food tastier |
D.there could be unknown dangers about genetic foods |
What is the best title of this passage?
A.Future Farming |
B.Genetic Engineering |
C.Foods with a Difference |
D.Genetically Engineered Fruits |
We each have a memory. That’s why we can still remember things after a long time. Some people have very good memories and they can easily learn many things by heart, but some people can only remember things when they say or do the again and again. Many of the great men of the world have got surprising memories.
A good memory is a great help in learning languages. Everybody learns his mother language when he is a small child. He hears the sounds, remembers them and then he learns to speak. Some children are living with their parents in foreign countries. They can learn two languages as easily as one because they hear, remember and speak two languages every day. In school it is not so easy to learn a foreign language because the pupils have so little time for it, and they are busy with other subjects, too.
But your memory will become better and better when you do more and more exercises.Some people can easily learn many things by heart because __________ .
A.they always sleep well |
B.they often eat good foot |
C.they read a lot of books |
D.they have very good memories |
Everybody learns his mother language __________ .
A.at the age of six |
B.when he is a small child |
C.after he goes to school |
D.when he can read and write |
In school the pupils can’t learn a foreign language easily because __________ .
A.they have no good memories |
B.they have no good teachers |
C.they don’t like it |
D.they are busy with other subjects |
Your memory will become better and better __________ .
A.if you have a lot of good food |
B.if you do more and more exercises |
C.if you do morning exercises every day |
D.if you get up early |
Once there lived an old man. He liked gold(金子)better than anything else in the world. He often said, “If I have enough gold, I will be the happiest man in the world.”
One day when he was traveling(旅行)in the desert(沙漠), the old man lost his way. He was very hungry and thirsty, but there were only rocks and sand around him. Just then, he found a bag lying on the sand. He hoped he would find water and food in it. He took up the bag and opened it. He saw that the bag was full(满的) of gold. He was so sad that he threw away(扔掉)the bag and began crying.
Now, the old man knew that there was something better than gold in the world.The old man liked ____ best before he traveled in the desert.
A.food | B.water | C.gold | D.money |
When he lost his way, he wanted to get ____.
A.food or water | B.rocks and sand |
C.bags full of gold | D.food and water |
The old man did not become the happiest man when he got the bag of gold because ____.
A.the bag was too small |
B.the gold wasn’t his |
C.he was very hungry and thirsty |
D.he didn’t like gold at all |
In the end, the old man knew that gold was ____ in the world.
A.the best thing | B.the worst thing |
C.better than anything | D.not the best thing |
Mr Smith gave his wife (妻子)money every Friday evening. His wife always spent it all the next Wednesday, so that for the next three days she had no money to spend at all. One day Mr Smith asked her, “But how did you spend all that money?” She answered, “I don't know .”So on Friday evening, Mr Smith gave her money together with an exercise book and a pencil. He said to his wife , “Please write down how you spend the money .”Next Tuesday, his wife had no money again. Mr Smith took the exercise book to see how she had spent it. “I have done what you told me,”she said gladly(乐意的). She had written “Friday, I got 18 pounds from Mr Smith. ” on the first page, and on the second page, she wrote , “Tuesday, I have spent it all.”Mr. Smith gave his wife money every _________.
A.Monday morning | B.Friday evening |
C.Friday morning | D.Wednesday afternoon |
Smith gave his wife an exercise book and a pencil and asked her________.
A.to do homework |
B.to draw a picture on it |
C.to write down how she spent the money |
D.to have a look |
Mrs Smith was _________ to do what Mr Smith asked her to .
A.happy | B.sad | C.sorry | D.excited |
The story tells us that Mrs Smith was not very_________.
A.glad | B.tall | C.careful | D.healthy |
Beijing Sunshine Secondary School offers after-school clubs and activities from Monday to Friday. These activities are offered to all of the students at no cost. The school decides to give its students opportunities(机会) to become successful lifelong learners.
Clubs and activities |
Time |
Place |
Advisor(指导教师) |
Art Club |
Tuesday& Thursday 3.05PM—4.35PM |
Art Room |
Ms. Wang |
Chess Club |
Monday& Wednesday 3.05PM—4.35PM |
Chess Room |
Mr. Zhang |
Computer Club |
Tuesday& Thursday 3.05PM—4.35PM |
Computer Room |
Mr. Chen |
Sewing Club |
Monday& Wednesday 3.05PM—4.35PM |
The dressmaker’s |
Ms Wang |
Web Design |
Monday 3.05PM—4.35PM |
Computer Room |
Mr. He |
Drama Club |
Tuesday& Thursday 3.05PM—4.35PM |
Music Room |
Ms Qing& Ms Yao |
Dress Designing |
Friday 3.05PM—4.35PM |
Art Room |
Ms Wang |
Other helpful clubs and activities, as you like. |
Why does the school offer its students the clubs and activities?
A.To make the students get ready for work. |
B.To help the students spend their free time. |
C.To make some money. |
D.To give the students abilities to learn. |
What is Ms. Wang good at?
A.Music and dancing. | B.Sport and games. |
C.Computers and design. | D.Dress and art. |
Who teaches you Web Design?
A.Mr. Zhang | B.Mr. Chen |
C.Mr. He | D.Ms. He |
请阅读1-5小题中购买者的信息,然后从所给的A-F这些广告语中找出与购买者相匹配的产品。Jack passed the entrance exam and was admitted to a famous university. These days, his father is looking for a mobile phone for him so as to keep in touch with each other closely.
Tom was a senior middle school student. He likes sports very much and plays football every afternoon. But after class this afternoon he has to buy a pair of shoes because his shoes have been worn out.
There’s a party this evening — for Mary’s 15th birthday. Her family are making preparations for it. Her brother’s job is to buy some drink.
Joan doesn’t want to forget the past, especially the happy moments.
Bill travelsed a lot when he was younger. Now that he has stopped his work, he enjoys reading about foreign people, places and customs.
A.“Just do it!” — This slogan(口号)speaks out to teens. It tells them to do something, but only if they think it’s worth it. And if so, why not do it wearing Nike? |
B.“Always Coca-Cola.” — Coke’s slogans change every few years, but this one has enjoyed a lasting popularity because it shows the brand’s spirit. It seems to say “Coke is the only drink there is; there are no other forms of drink.” |
C.“Share moments, share life.” — This slogan from Kodak connects photos and beauty. It asks people to remember the happy moments in life by taking photos of them — using Kodak film of course! |
D.On hearing the slogan “Make yourself heard”, you will know there is Ericsson product for you to call anyone. |
E. There are some public service advertisements(PSAs)that educate people about public service projects, such as Project Hope. Its slogan is “Project Hope — Schooling every child.”
F. One magazine ad says “Make me your window on the world!” The advertisers say that the weekly magazine can bring the world to your home. “Have you ever wondered what the Chinese eat for breakfast? Did you know that the Sahara Desert is getting bigger every year? This fascinating magazine, full of color pictures, is your window on the world.