How airplanes fly?

People {#blank#}1{#/blank#} (try) for a long time before they invented a {#blank#}2{#/blank#} (success) "flying machine". Now there {#blank#}3{#/blank#} (be) so many {#blank#}4{#/blank#} (plane) in the sky.

    An airplane {#blank#}5{#/blank#} (fly) because of the upward force(力量) of {#blank#}6{#/blank#} (move) air against its wings(翼). To get that moving air, it needs something {#blank#}7{#/blank#} (push) it forward—like a motor-driven propeller(螺旋桨) or a jet engine(喷气发动机). You can fly a kite if there  {#blank#}8{#/blank#} (be) enough wind to hold it up. An airplane is like a kite with such force!

    More and {#blank#}9{#/blank#} (many) young people are getting to like making model planes now. How about you? Are you interested in it after {#blank#}10{#/blank#} (read) this article?

      Information Card

B

Conversation 1

Policeman: Excuse me,what's your name?

Lim: My name is Lim Brown.

Policeman: Is this your dictionary?

Lim: Yes,it is.Thank you.

Policeman: Are these your keys?

Lim: No,they aren't.I think they are Mike's.Is that yours,Mike?

Mike: Yes,they are my keys. 

Policeman: What's your last name?

Mike: Smith.

Policeman: Ok.What's your telephone numbers?

Mike: My telephone number is 329-0769 and Lim's is 568-8215.

Conversation 2

Rick: Excuse me,sir,I lost my ID card.

Policeman:What's your first name?

Rick: Rick.

Policeman:What's your last name?

Rick: Cooper.

Policeman: How do you spell Cooper?

Rick:C-O-O-P-E-R.

Policeman:And your telephone number?

Rick: 678-0987

Policeman:Yes,it's your ID card.

    A music club was set up in Class One, Grade Eight. The students who like music can join the club. There are some students in it now.

    Li lei likes rock music best. He says, "Rock music is my favorite, because it makes me happy and exited. It sounds exciting and most people like it. I am going to become a famous singer of a band when I grow up."

    Wang Ming says, "I am from the country. So I liked country music when I was young, and I still like it now. I will sing a song when I'm sad, and then I'll get better."

    The twins like jazz best because they can dance to the music.

    Jack says, "I like pop music, but I do well in playing musical instruments, so I like classical music best. I want to continue studying classical music."

    Han and Xue like folk music best, they say it sounds wonderful. They are ready for the next school concert.

Information Card

    Summer is here. One of the best ways to cool off on a hot summer day is to jump into a swimming pool. Swimming is great exercise, and a trip to a pool or beach is a good way to have fun with friends. {#blank#}1{#/blank#}, so it's important to stay safe as you do it. Here are a few things you can do to swim safely.

    ●Swim only in areas set for swimming.

    Don't swim unless there is a lifeguard (救生员) on duty. If you're on a beach near the ocean, this is especially important. In some places, fast currents (急流) can sweep swimmers away without warning. So if a sign says "no swimming", please take care.

    Be careful when diving (跳水) into the water headfirst.

    Most pools have deep ends where diving is safe. In natural water, don't dive unless you know that the water is deep enough. {#blank#}2{#/blank#}, causing injury (伤害) or death.

    ●Make sure you have a partner with you.

    Nobody knows what will happen while you are swimming. If something goes wrong, you can get help from that person as soon as possible. In this situation, {#blank#}3{#/blank#}.

    ●Pay close attention to children's safety.

    Kids who don't know how to swim should wear life jackets. But by themselves they are not enough, {#blank#}4{#/blank#}. If you have a pool at home, put a fence (围栏) around it in case children fall in. And if a child disappears, check the pool first.