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济南奥数网9月6日小升初天天练奥数
难度：★★★★
小学六年级奥数天天练：工程问题
一件工作甲先做6小时，乙接着做12小时可以完成．甲先做8小时，乙接着做6小时也可以完成．如果甲做3小时后由乙接着做，还需要多少小时完成？
难度：★★★★★
小学六年级奥数天天练：工程问题
一项工程，甲单独做要12小时完成，乙单独做要18小时完成．若甲先做1小时，然后乙接替甲做1小时，再由甲接替乙做1小时，…，两人如此交替工作，问完成任务时，共用了多少小时？
济南奥数网9月6日小升初天天练英语
一、语法精练
1.My brother plays——football very well.
A.a B.the C. all D. /
2.Birds —— when there isn’t enough food for them.
A. starve B.are starving C.starved D.starves
3.I can see an apple ________ the apple tree and a bird ________ the banana tree.
A.on, in B.in，in C.on，on D.in，on
4.I have a red box.It’s full ________ toys，so it’s very ________.
A.of, light B.for，big C.like，small D.of，heavy
5.Your football shoes are under the chair.Please ________.
A.put away it B.put it away C.put away them D.put them away
6.Mom’s in a bad _____，so be nice to her.
A.time B.trouble C. manner D.mood
二、 阅读理解
Mr.White looks out of his window.There is a boy at the other side of the street.The boy takes some bread out of a bag and begins eating it.There is a very thin dog in the street, too.The boy says to it, “I’ll give you some bread.” The dog is hungry and goes to the boy, but he does not give it any bread.He kicks the dog.It runs away, and the boy laughs.
Then Mr.White comes out of his house and says to the boy.“I’ll give you a shilling (先令).”The boy is happy and says，“Yes.”“Come here.” Mr.White says.The boy goes to him，but Mr.White does not give him a shilling.He hits him with a stick. The boy cries and says, “Why do you hit me? I do not ask you for any money.” “No,” Mr.White says，“And the dog does not ask you for any bread，but you kick it.”
1.Where is Mr.White at first?
A.He is in the room
B.He is in the street.
C.He is in front of the house.
D.He stands close to the boy.
2.Why does the dog go to the boy? Because__________.
A.it wants to eat
B.the boy asks it to do so
C.the boy is the dog’s owner
D.the boy is friendly to it
3.Why does the dog run away? Because__________.
A.the boy gives some bread
B.the dog doesn’t like bread
C.the dog doesn’t like the boy
D.the boy kicks the dog
4.Why does Mr.White tell the boy to come up to him? Because he wants to__________.
A.give him a shilling
B.give him a good lesson(教训)
C.give him some more bread
D.help the boy
5.What kind of man do you think Mr.White is? He is a __________man.
A.cruel (粗鲁的)
B.sympathetic (富有同情心的)
C.friendly
D.polite (有礼貌的)