I'm Zhao Kai. I have a good friend. His name is Ben.{#blank#}1{#/blank#}He comes to China because(因为) his parents work in China.{#blank#}2{#/blank#}He speaks English very well, but his Chinese isn't good. I often help him with his Chinese and he helps me with my English.{#blank#}3{#/blank#}He has many friends in our school. Ben often plays with his friends.{#blank#}4{#/blank#}His favorite food is jiaozi. I often invite(邀请) him to my home for dinner.{#blank#}5{#/blank#} Do you want to be Ben's friend?

A. We help each other.

B. He comes from America.

C. So he is very happy.

D. He likes to eat Chinese food.

E. Now Ben is in my class.

    There are some very good things about open education. This way of teaching allows the students to develop their own interests in many subjects. Open education allows students to be responsible(负责) for their own education. Some students do badly in traditional classrooms. The open classroom may allow them to enjoy learning. Some students will be happier in an open education school. They will not have to worry about grades or rules. But many students will not do well in an open classroom.

    For some students, there are too few rules. These students will do little in school. They will not make good use of open education. Because open education is so different from traditional education, these students may have a problem of getting used to making so many choices. For many students it is important to have some rules in the classroom. They worry about the rules even when there are no rules. Even a few rules will help this kind of students. The last point about open education is that some traditional teachers do not like it. Many teachers do not believe in open education. Teachers who want to have an open classroom may have many problems at their school.

    You now know what open education is. Some of its good points and bad points have been explained. You may have your own opinion about open education. The writer thinks that open education is a good idea, but only in theory(理论). The writer believes that most students, but of course not all students, want some structure in their classes. They want and need to have some rules. In some cases, they must be made to study some subjects. Most of the students are pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.

Open Education

    Great white sharks in the Pacific Ocean. Wildebeest (角马)in Africa. Arctic terns(北极燕鸥) in the Atlantic. At first, these animals seem quite different. One swims, one walks, and the other flies. But they all have one thing in common, They all migrate(迁徙).

    Some migrating animals move to a place with a better temperature. Some go to find food or water. The groups travel as one, but during the trip, they face many different challenges.

    One challenge is distance. Some migrating animals take very long trips. For example, one great white shark swam from Australia to South Africa and back. In nine months, it swam about 20, 000 kilometers!

    Another challenge is finding enough food and water during the journey. For example, each Mali elephant needs over 200 liters of water each day. To get this, they need to go from one waterhole to another.

    Besides, migrating animals have to keep away from other animals that want to eat them. The zebra (斑马) has to avoid lions. Traveling as a group helps keep them safe. When one zebra is in trouble, the other members make a circle around it.

    By working as a group, migrating animals travel to live better lives.

⑴{#blank#}1{#/blank#}⑵{#blank#}2{#/blank#}⑶{#blank#}3{#/blank#}⑷{#blank#}4{#/blank#}⑸{#blank#}5{#/blank#}

    Back in the old days, young men were expected to go out and find jobs to support their families. Most boys dropped out of school(辍学) early, and went to get jobs as teenagers. Some just aged 13 became factory workers or farmers.  

    When Mark Twain finished the fifth grade, he left school and went to work at a printing shop. Thomas Edison got his first job when he was 12. He was a newspaper boy. This way, Mark Twain and Edison were able to help their families financially (经济上), since they did not come from wealthy homes. 

    Although they went to work at a young age, they didn't give up their dreams. Mark Twain tried many different jobs in his life, and he got a lot of experiences which he used as foundations (根据) of his stories. Thomas Edison came up with the ideas of his inventions while calling out the news headlines (标题). 

    No matter what job you are doing, you may find you are preparing for the future. Take every chance you can, and maybe one day you will become the next Mark Twain or Thomas Edison!

    Many people believe that not only wetness, but also light and dirty things are the greatest enemies of stamps. People protect their stamps in several different ways.

    In fact, we should never touch the stamps with our hands. This avoids moving dirty things onto them. Stamp tweezers (镊子) should be used in all conditions.

    Stamps are printed things. The colour will slowly disappear if they are put in the light for a long time. So we should not put stamps in the light for long. Direct sunlight must be avoided as well.

    Wetness is an important problem for stamps. Some collectors will put stamps in separate plastic bags. However, it is possible that some stamps have taken in some water from the air before they are put into the plastic bags. Stamps become yellow easily and rapidly after they take in wet air. To protect the stamps, some people also put the stamps into a special room which has a machine to keep the air cool and dry. However, not many people can afford that.

    To keep stamps, stamp collectors usually put them under plastic covers. It is a common and simple way. This helps because the plastic cover keeps the stamps off the wet air. It also stops the fingers from touching the stamps.

    Some collectors prefer to store stamps inside a plastic box with desiccants (干燥剂). However, we should take care not to let the stamps touch the desiccants. On top of that, don't take your stamps out on a wet day.