问题 解答题

甲每天工作8小时,12天完成一项工程;乙每天工作9小时,8天完成这项工程.现在甲、乙两人合作,每天工作6小时.几天才能全部完工?

答案

1÷(12×8)=

1
96

1÷(8×9)=

1
72

1÷[(

1
96
+
1
72
)×6],

=1÷[

1
16
+
1
12
],

=1÷

7
48

≈7(天),

答:现在甲、乙两人合作,每天工作6小时,7天才能全部完工.

完形填空

Tick, tick, tick! Good morning, Jim! It’s 6:30 now. It’s time   1  up. Do you know me? I’m your new friend. My name is Clock. Look   2  me. I have no feet,   3  I can walk with my hands. I have no mouth, but I   4  speak to you. Now please listen to   5 . Today is Monday. You have many things to do. Classes   6  at 8:00. You have four classes in the morning and two classes in the afternoon. After 3:40 you have a basketball match   7  Class Two. You come   8  at 5:40. You have supper at 6:00. You   9  CCTV news at 7:00. And you go to bed at 9:30. Now please get up quickly and have your breakfast or(否则)you will be   10 .

(  )1. A. get            B. gets             C. to get           D. getting

(  )2. A. at             B. for          C. after            D. like

(  )3. A. and            B. but          C. so           D. or

(  )4. A. can’t          B. mustn’t      C. must             D. can

(  )5. A. I          B. my           C. mine         D. me

(  )6. A. begin      B. begins           C. beginning        D. to begin

(  )7. A. to             B. with         C. and          D. for

(  )8. A. home       B. to home      C. your home        D. at home

(  )9. A. watch         B. read         C. see          D. look at

(  )10. A. early        B. happy            C. glad         D. late

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