一、選擇題（共20分，每題2分）
二、填空題（共16分，每題2分）
11．1.7； 12．>； 13．－6，－16； 14．（答案不唯一）；
15．； 16．； 17．，； 18．23，．
三、解答題（共64分，第19題16分，每小題4分；第20-21題，每題10分，每小題5分；第22-23題，每題5分；第24-26題，每題6分）
19．計算(本題滿分16分，每小題4分)
解：（1）
＝12－3－7 ········································2分
＝2． ············· ···························4分
（2）
＝ ······· ·································2分
＝－(6.5×2×3)
＝－39． ········································4分
（3）
＝ ·········································2分
＝－7． ········································4分
（4）
＝ ········································3分
＝
＝． ·········································4分
20．化簡(本題滿分10分，每小題5分)
解：（1）
＝ ··········································2分
＝ ··········································4分
＝． ···········································5分
（2）
＝ ············································2分
＝ ·············································4分
＝． ·············································5分
21．解方程(本題滿分10分，每小題5分)
解：（1）
， · ············································2分
， ·············································3分
， ·· ···········································4分
． ··········································· ··5分
（2）
， ···············································2分
， ···············································3分
， ···············································4分
． ···············································5分
22．(本題滿分5分)
解：
＝ ················································2分
＝
＝ ··················································4分
當，時，
原式＝． ··················································5分
23．(本題滿分5分)
解：（1）－1， 1； ··················································2分
（2）； ··················································4分
（3）． ···················································5分
24．(本題滿分6分)
解：（1） ···················································1分
＝54km． ···················································2分
答：行程最多的一天比行程最少的一天多行駛了km．
（2） ·········································3分
＝50＋7÷7
＝51 km． ··············································4分
答：這七天中平均每天行駛51km．
（3） ···············································5分
＝752.76
≈753元． ············· ·································6分
答：小明家一個月(按30天計算)的汽油費用是元.
25．(本題滿分6分)
解：（1）方案一： ·· ············ ·································1分
＝
＝元． ·· ············ ·································2分
方案二： ············ ·································3分
＝元． ············· ·································4分
（2）當時，
方案一：元，
方案二：元．
∵36000＞35200，
∴該中學選擇方案二更省錢． ············· ·································6分
26．(本題滿分6分)
解：（1） ①③ ； ············· ·································2分
（2） ； ············· ·································4分
（3）
＝＋
＝＋
＝． ············· ·································5分
是對稱式． ············· ·································6分
說明：與參考答案不同，但解答正確相應給分．題號
1
2
3
4
5
6
7
8
9
10
選項
A
D
B
B
A
D
C
C
B
D

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