Do you know that you can use your watch as a compass (指南针)on a sunny day?Take a watch and point the hour-hand in the direction of the sun .Imagine (想象)a line which runs from the center of the watch through a point half-way between the hour-hand and number one. This line will surely point south.
    If you know astronomy a little, you will understand why this works. Inthe northern half of the earth, the sun is in the south at noon. In Russia, the real noon is one o'clock. If at that time we piont  the hour-hand at the sun, the hour-hand and the number one will point south. That is why you must imagine a line which will run from the center .If the watch through a point half -way between the hour-hand and number one. It will point south. If you are in the southern part of our planet, you must point number 12 at the sun. The line which you can imagine between number twelve and the hour-hand will then show north.
1.When we carry out this experiment in the northern part of the earth ,we should point ______at the sun.
A.number 12   B.the minute-hand   C.the hour-hand  D.number one
2.What does the underlined word "astronomy" mean in the passage?
A.天文学  B.地理学  C.宇航学  D.逻辑学
3.The passage tells us that we can use a watch ____on a sunny day.
A.to study the weather     B. to show direction   
C.to enjoy ourselves       D. to keep good time
4.If you are in Australia ,which of the following is the right way to show north?
 5.What's the best title for this passage?
A. Your Watch Becomes a Compass  B. An Interesting Watch
C. The Story  of a Watch          D. The Sun and a Watch


Hello, Tom,
I love autumn! Mid-autumn Festival is this week .We will watch the moon tonight , and look for Chang,e and Wu Gang . My mother bought mooncakes ,and I have esaten many of them !National Day is also in the autumn ,on October 1. My mother and father will not have to work for seven days! We will do many things together .I like going to the National Day celebration(庆祝).But the best thing in autumn is my birthday.It is in October .I will be fifteen years old .Good-bye for now.
 
Dear Wang Hua,
    Thank you for your e-mail !I love autumn ,too .In Canada ,we have an autumn holiday called Thanksgiving. Families always celebrate thanksgiving together .I will go to my grandmother and grandfather's house .My uncles and their children will be there ,too .Canadian thanksgiving is in early October .I the US ,they celebrate Tanksgiving in late November.
    Have a good time on your birthday ,Wang Hua! On my birthday ,I have a cake with candles .Everyone sings "Happy birthday". Then I blow out the candles! Will you have a cake on your birthday?
Your friend,  
Tom
1.When is Wang Hua's birthday?
A.On September 29.        B.In September.   
C.Before September 29.     D.After September 29.
2.America celebrates Thanksgiving ____later than Canada.
A.one month        B.less than two months   
C.two months       D.more than two months
3.What  do Canadians usually do in Thanksgiving?
A.Eat cakes.    B.Stay together.     C.Watch the moon.    D.Sing the song.
4.When Tom blows out the candles,they____.
A.stop burning      B.start burning     C.are broken      D.are cut
5.What must Wang Hua and Tom use when they wrote to each other?
A.Pens.     B.Paper.     C.Computers.     D.Telephones.



     If you go into the forest with your friends, stay with them. If you don't ,you'll get lost .If you get lost, this is what you should do. Sit down and stay where you are. Don't try to find your friends-Let them find you .You can help them find you  are staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle(吹口哨)three times. Stop. Then shout or whistle three times again. Any signal(信号)given three times is a call for help.
     Keep up shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.
     If you don't think that you will get help before night comes, try to make a little house with branches(树枝).Make yourself a bed with leaves and grass.
     When away. Pick off small branches and drop them as walking in order to go back again easily. When you are lost ,the most important thing to do is to stay in one place.
1.If you get lost in the forest, you should______.
A.try to find your friends    B.stay in one place and give signs
C.walk around the forest    D.shout as loudly as possible
2.Which signal is a call for help?
A.Shouting here and there.
B.Crying twice.
C.Shouting or whistling three times together
D.Whistling everything in the forest
3.When you hear two shouts or two whistles ,youknow that___.
A.someone is afraid of an animal
B.people will come to help
C.someone needs help
D.something terrible will happen
4.What's the meaning of the underlined(下划线的)sentence?
A.Leave branches to find your way back.
B.Pick off branches to build another house.
C.Use branches to make a bed.
D.Drop branches to look for bed.
5.The main idea of the passage is _____________.
A.how to travel in the forest  
B.how to spend the night in the forest
C.what you should do if you want to get some water  
D.what you should do if you are lost in the forest

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