【正文】
軸 ). The two ends of the earth39。 houses to talk to them. C. You talk to your friends through the same puter. D. You type and send words through the Inter. 4. What must you have if you want to use ? A. An address. B. Some stamps. C. An envelope. D. An address. 5. People like to use to send messages to their friends and family mainly because __________. A. they don39。t be drunk People can only drink and use the 3 3%. The water es only from rivers, lakes and the underground. And we can39。 that D. such。s not strong enough __________ walking up mountains. A. to go B. going C. go D. went 11. The little boy is __________ young __________ he can39。 Unit 6 I. 單項填空 1. I think Song Zuying has a good __________. A. sound B. voice C. noise D. news 2. The house is made __________ wood. It looks beautiful. A. of B. from C. in D. by 3. The old photo reminds me __________ my childhood. A. for B. with C. to D. of 4. I’ m a singer is __________ an interesting TV show __________ many people like watching it. A. so。 as 5. Will you please tell her about the news? Sure, I’ ll tell her about it as soon as she __________ back. A. e B. will e C. came D. es 6. The boy often cheats his friends __________ money. A. for B. from C. out D. of 7. Tigers wait __________ it is dark, then go out to find their food. A. since B. until C. as D. because 8. What did you do last night? I stayed at home __________ going to a movie. A. instead B. instead of C. rather than D. better than 9. Dad, why must I stop __________ puter games? For your health, my boy. A. play B. to play C. to playing D. playing 10. She39。 to C. so。s surface is covered 2 water. Yes, it is true. But about 97% of it is sea water or salt water, and it can39。s address, and then send the message across the Inter. People don’ t need to use stamps, envelopes (信封 ) or go to the post office since the invention of the Inter. Quick, easy and interesting – that’ s the Inter! 1. The Inter is __________. A. a big puter B. a small group of puters C. lots of puter works D. the World Wide Web 2. What is a work? A. A to catch fish. B. A with electricity. C. A small group of puters put together. D. A puter with s around it. 3. What does the underlined part “ talk to your friends?on the pages mean? A. You can talk to your friends face to face. B. You go to your friends39。s faster and cheaper B Put an ice cube (冰塊 ) from your fridge into a glass of water. You have a piece of string of 10 centimeters (厘米 ) long. The task is to take out that piece of ice with the help of the string, but you must not touch(接觸) the ice with your fingers. You may ask your friends to try doing that when you are having dinner together. There is a saltcellar(鹽瓶 ) on the table. You must use salt when you do this experiment. First you put the string across the piece of ice. Then put same salt on the ice. Salt makes ice melt(融化 ). The ice round the siring will begin to melt. But when it melts, it will absorb(吸收) heat. The cold ice cube will make the salt water freeze(結(jié)冰 ) again. After a minute or two you may raise the piece of string and with it you will raise your piece of ice! This experiment can be very useful to you. If, for example