1.单选题- (共9题)
排数(x) | 1 | 2 | 3 | 4 | … |
座位数(y) | 50 | 53 | 56 | 59 | … |
有下列结论:①排数x是自变量,座位数y是因变量;②排数x是因变量,座位数y是自变量;③y=50+3x;④y=47+3x,其中正确的结论有( )
A.1个 | B.2个 | C.3个 | D.4个 |
A.①②③ | B.①②④ | C.①②⑤ | D.①④⑤ |

A. 甲、乙两地的路程是400千米 B. 慢车行驶速度为60千米/小时
C. 相遇时快车行驶了150千米 D. 快车出发后4小时到达乙地

A. y=-2x+24(0<x<12) B. y=-

C. y=2x-24(0<x<12) D. y=

2.选择题- (共4题)
①碘酒中的溶质是酒精
②改变条件,饱和溶液与不饱和溶液可相互转化
③饱和溶液一定是浓溶液
④乳化后形成的乳液与溶液同样稳定
⑤氢氧化钠溶于水液体温度会升高.
阅读理解
What would the world be like if cars could drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner, or a car full of passengers who are reading, listening to music or even sleeping. But none of them are worried about the road ahead.
Well, all of this could be the future of driving. There are several companies, including Google, working on driverless cars. So far, no Google self-driven car has gotten a traffic ticket, but some of them have been in accidents when other cars hit them.
These cars are now still in the testing stages. But, if the tests are successful, these electric self-driven cars could be put into use very soon.
The cars already have many features(特点)allowing them to take the place of drivers during certain situations. Some features include cars being able to park themselves, or slow down when they notice objects close by. They can also control the speed if there are dangerous conditions.
Scientists and engineers believe, with the help of wireless signals, cameras and GPS, we are now at a stage where creating a safe self-driven car might be possible.
The cause of deadly road accidents is usually careless drivers or dangerous conditions. The self-driven car may be able to prevent these. However, some people do not like the idea. American lawyer Whit Drake, for example, doesn't believe these cars are safe. He thinks that technologies can also be mistakes.
阅读理解
What would the world be like if cars could drive themselves? Imagine seeing an empty car passing by on its way to pick up its owner, or a car full of passengers who are reading, listening to music or even sleeping. But none of them are worried about the road ahead.
Well, all of this could be the future of driving. There are several companies, including Google, working on driverless cars. So far, no Google self-driven car has gotten a traffic ticket, but some of them have been in accidents when other cars hit them.
These cars are now still in the testing stages. But, if the tests are successful, these electric self-driven cars could be put into use very soon.
The cars already have many features(特点)allowing them to take the place of drivers during certain situations. Some features include cars being able to park themselves, or slow down when they notice objects close by. They can also control the speed if there are dangerous conditions.
Scientists and engineers believe, with the help of wireless signals, cameras and GPS, we are now at a stage where creating a safe self-driven car might be possible.
The cause of deadly road accidents is usually careless drivers or dangerous conditions. The self-driven car may be able to prevent these. However, some people do not like the idea. American lawyer Whit Drake, for example, doesn't believe these cars are safe. He thinks that technologies can also be mistakes.
3.填空题- (共8题)
①学校离小明家1000米;
②小明用了20分钟到家;
③小明前10分钟走了路程的一半;
④小明后10分钟比前10分钟走得快,
其中正确的有_____(填序号).

4.解答题- (共7题)
医疗费用范围 | 门诊 | 住院 | ||
0~5000元 | 5001~20000元 | 20000元以上 | ||
每年报销比例标准 | 30% | 30% | 40% | 50% |
(说明:住院医疗费用的报销分段计算.如:某人住院医疗费用共30000元,则5000元按30%报销、15000元按40%报销、余下的10000元按50%报销;题中涉及的医疗费均指允许报销的医疗费).
(1)某农民2016年在门诊看病共报销医疗费180元,则他在这一年中门诊医疗费用共________元;
(2)设某农民一年中住院的实际医疗费用为x元(5001≤x≤20000),按标准报销的金额为y元,试求出y与x的关系式;
(3)若某农民一年内本人自付住院医疗费17000元(自付医疗费=实际医疗费-按标准报销的金额),则该农民当年实际医疗费用共多少元?

n | 1 | 2 | 3 | 4 | … |
S | 1 | 3 | | | … |
(1)按要求填写上表:
(2)研究上表可以发现S随n的变化而变化,且S随n的增大而增大有一定的规律,请你用式子来表示S与n的关系,并计算当n=10时,S的值为多少?
销售价(x元/台) | 35 | 40 | 45 | 50 |
日销售量(y/台) | 57 | | 27 | |
日销售额(t/元) | | 1680 | | 600 |
(1)请在表中空白处填上适当的数;
(2)用语言描述日销售量y和日销售额t随销售价x变化而变化的情况.
(1)这一天的最高温度是多少?是在几时到达的?最低温度呢?
(2)这一天的温差是多少?从最低温度到最高温度经过多长时间?
(3)在什么时间范围内温度在上升?在什么时间范围内温度在下降?

(1)请你用表格表示气温与音速之间的关系;
(2)表格反映了哪两个变量之间的关系?哪个是自变量?哪一个是对应的值?
(3)当气温是35°C时,估计音速y可能是多少?
(4)能否用一个式子来表示两个变量之间的关系?

(1)机动车行驶几小时后加油?
(2)中途加油________L;
(3)如果加油站距目的地还有240km,车速为40km/h,要到达目的地,油箱中的油是否够用?并说明原因.
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【1】题量占比
单选题:(9道)
选择题:(4道)
填空题:(8道)
解答题:(7道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:16
7星难题:0
8星难题:6
9星难题:2