North American black bears are shy animals. They are fearful by nature, and will usually run away if they see or hear people. Because of this, it can be difficult for scientists to learn about these animals.
In order to study black bears, researchers from New Jersey, USA, catch bears and use drugs (毒品) to help them go to sleep. Researchers then work out the size and the weight of the bear, take blood to test for diseases, remove a tooth and take it to the lab to find out its age. From these studies, researchers want to find out how many bears live in New Jersey, how long they live, and how many babies they produce.
But in Minnesota, USA, researchers study bears that are completely awake. The bears know the researchers' voices and they are not afraid of die research team. With the help of a few grapes to keep the bears busy, researchers can touch them to check their hearts, look at their teeth , and do other jobs. Researchers can also walk or sit with bears for hours and make videos to learn about their everyday lives.
In both places, the main purpose is the same—to make sure there is a healthy population of black bears. But the research methods and the kinds of information that researchers, are able to collect are quite different. In the first paragraph, we can learn that North American black bears are _______.
A.shy and fearful animals | B.not found today |
C.well known to scientists | D.not afraid of people |
The word "remove" in the second paragraph probably means _____ in Chinese.
A.拔下 | B.移植 | C.清洗 | D.修补 |
Which of the following may NOT be included in the New Jersey studies on bears?
A.The age. |
B.The way of their communication. |
C.The weight. |
D.The number of babies they produce. |
In the Minnesota studies, researchers _____.
A.can never get close to the bears |
B.study the bears while they are asleep |
C.use grapes to make the bears full |
D.learn a lot about the bears' everyday lives |
What do the two studies have in common(共同点)?
A.Research places | B.The main purpose. |
C.Research methods. | D.Collected information. |
There are many kinds of food in the world. Scientists learn a lot about them. They say that there are some kinds of food people must eat every day. For example, people must eat some green and yellow vegetables. We shouldn’t eat too much meat. People also need to eat some fruits, bread and rice. Of course our bodies need some water and milk.
Scientists say people in different countries and different places eat different kinds of food. They cook food in different ways. Different people eat at different times. In one place, people eat once or twice a day. But in another place, people eat three or four times. The scientists say when to eat and how many times to eat are not important. What we eat is the most important thing.
Nowadays, the world faces two problems. People in some places, for example, in Africa, are not full. Many people are eating junk food. It’s bad for people’s health. So it’s our duty to make everyone full and make everyone healthy.
根据短文内容,选择正确答案。_______ know about food most according to the passage.
A.Farmers | B.Cooks |
C.Scientists | D.Customers |
Scientists think the most important thing about food is _______.
A.how to cook | B.when to eat |
C.what to eat | D.how often to eat |
Which of the following statements (陈述) is NOT true?
A.Every day, we should eat some vegetables. |
B.All the people in the world have enough food to eat. |
C.Many people are eating unhealthy food. |
D.Everyone is needed to help solve the two problems. |
_______ is not good for our health.
A.Meat | B.Bread |
C.Milk | D.Potato chips |
We may read this passage in _______.
A.a letter | B.a story |
C.a newspaper | D.a health magazine |
My Classmates I Love Sports A Birthday Dinner Our School A Basketball Star My Teacher Our Classroom |
Hello, boys and girls! My name is Zhang Hanyun, and my English name is Selina Zhang. Kristy Zhang’s Chinese name is also Zhang Hanyun. She is a singer. But I’m a clerk(职员) at Mr. Cool’s Clothes Store.
We have shorts in black and white for $3. We have shirts in blue, black and white. The blue shirts are $7. The black shirts are also $7. The white shirts are on sale for $4. For boys, we have white socks. A pair of white socks is only $1. We only have black shoes. We sell black shoes for only $18. Come and see for yourself at Mr. Cool’s Clothes Store.You can’t buy __________ at Mr. Cool’s Clothes Store.
A.black shoes | B.black shorts |
C.blue shirts | D.black socks |
Two white shirts and a pair of white socks are __________.
A.$6 | B.$8 | C.$9 | D.$14 |
You have $21, and you can buy __________ pairs of shorts.
A.3 | B.7 | C.8 | D.6 |
Selina Zhang is a __________.
A.clerk | B.teacher |
C.student | D.singer |
---Can you buy white shoes at Mr. Cool’s Clothes Store?
---____________________.
A.Yes, we can | B.No, we can’t |
C.Yes, I am | D.No, they aren’t |
Hi! My name is Paul. Lisa is my classmate. We don’t go to school on Sunday. Here is our schedule(日程表)for Sunday.Paul and Lisa are __________.
A.brother and sister | B.father and daughter |
C.teacher and student | D.classmates |
What does Lisa have for breakfast?
A.Eggs and an apple. | B.Milk and bread. |
C.dumplings and potatoes | D.Tomatoes and rice |
Paul plays computer games at __________________on Sunday.
A.10:00 | B.15:00 | C.16:30 | D.19:00 |
What does Lisa NOT do on Sunday?
A.Have rice for lunch. | B.Read books. |
C.Play basketball. | D.Play ping-pong. |
Paul watches TV with ____________ after dinner.
A.Lisa | B.his sister |
C.his father | D.his mother |
Peter is a tall boy. He is 1.8 meters tall. He lives in Canada. On Sunday morning he likes to go to see his friend. Her name is Alan. She is a girl. She has a good garden(花园). There are many trees and rose in the garden. They are apple trees oranges trees and other fruit trees. There are lots of fruits on the trees. There are many birds in the garden, too. They are happy. The birds sing in the trees. Peter and Alan listen to the birds and sing songs with them. They draw pictures of birds.
It’s lunch-time. They are hungry. They go to a restaurant. Peter would like some dumplings. Alan wants to have a bowl of noodles. They order them for lunch.Peter .
A.has a girl friend |
B.is a short boy |
C.lives in China |
D.goes to see Alan in the garden |
Here are many in the garden.
A.vegetables | B.cats and dogs |
C.fruit and flowers | D.children |
Sing in the trees.
A.Peter and Alan | B.Birds |
C.Fruit | D.Roses |
Peter and Alan .
A.don’t like songs | B.don’t like birds |
C.like birds | D.like new clothes |
They have lunch .
A.in school | B.In Alan’s home |
C.in peter’s home | D.in a restaurant |