10．已知函数f(x)?5(x?R)的反函数为g(x），则g(2)?________．
x11．圆C:x?y?4x?2y?4?0的半径为________． 12．已知圆锥底面半径r?3，高h?2，则体积为________．
13．若直线ax?4y?1?0与直线x?2y?2?0互相垂直，则a的值等于 . 14．已知函数f(x)?cosx，则f?(0)? __________． 三、解答题（共40分，每小题20分）
15．某种型号的汽车紧急刹车后滑行的距离y(km)与刹车时的速度x(km/h) 的关系可以用y?ax来描述，已知这种型号的汽车在速度为60km/h时，紧急刹车后滑行的距离为
222b(km).一辆这种型号的汽车紧急刹车后滑行的距离为3b(km)，求这辆车的行驶速度.
16．已知?an? 是等差数列，a1?1,d?4，求?an? 的前5项和S5.
科目：英 语
一、单项选择（共40分，每小题4分） 1. What a ________ day we are having today!
A. likely B. lovely C. lively D. interestingly 2. Come on! I’m hungry. It is time ________ dinner?
A. for B. on C. in D. at 3. John is two years ________ than I.
A. smaller B. less C. elder D. younger 4. They won’t allow us ________ at this beach.
A. swimming B.to swim C. swam D. swim 5. The students ________ football on the playground now.
A. playing B. play C. are playing D.to play 6. The box is ________ what I saw in the shop.
A. same as B. the same like C .the same that D. the same as 7. Would you like to ________ us in our discussion？
A. take part in B. join C. taking part in D. joining
8. Eric’s math is ________, and he can play the piano very ________.
A. good, good B. well, well C. well, good D. good, well
9. He lives in a village ________ there are a lot of trees.
A. there B. where C. that D. which 10. Old as he is, he has ________ to do every day.
A. a lot of work B. much works C. lots of homeworks D. homeworks 二、阅读理解（共25分，每小题5分）
Once a boy came to ask a fisherman how to become cleverer, because his mother always called him “foolish boy”.
“That’s easy,” answered the fisherman. “I know one way to make you become cleverer.” “Really?”
“Of course. It is said a fish head is good for brain. If you eat one, you’ll become cleverer indeed. Pay only three pounds for one fish head.” The boy paid him three pounds and the fisherman cut off a fish head and handed it to him. A raw fish head is not good — not even for a hungry boy to eat but the boy ate it up in two gulps (大口).
“Do you feel anything?” asked the fisherman. “Not in my head,” said the boy.
The boy lay on the ground and thought. “One whole fish costs only two
pounds. I had paid him three pounds for the fish head. Why couldn’t I have the whole fish for soup, a head for brain and one pound left over?” He jumped up and shouted at the fisherman. “You thief! You are fooling me!” The fisherman laughed, saying, “The fish head works now, you see.” 11. The boy came to the fisherman in order to __________.
A. buy a fish head B. become cleverer C. buy a whole fish D. A and C
12. The boy ate up the raw fish head only in two gulps, because he __________.
A. enjoyed it B. wanted to taste it C. took it as a good medicine D. was hungry 13. The boy paid three pounds. He should have had __________.
A. a whole fish B. a fish head and one pound back C. a whole fish and one pound back
D. a whole fish, a fish head and one pound back 14. __________ helped the boy become cleverer.
A. A good meal B. The raw fish head C. Nothing D. The whole fish 15. Which of the statements is true?
A. The fisherman was a doctor.
B. The boy paid 2 pounds for the fish head. C. The boy became cleverer at last. D. The boy was as foolish as before.
2020年单招模拟试题
