三个实验小组同时分别探究“蜡熔化时温度的变化规律”、“海波熔化时温度的变化规律”与“水的沸腾”，记录数据如下表：

时间/min	…	10	11	12	13	14	15	16	17
甲的温度/℃	…	97.0	97.5	98.0	98.0	98.0	98.0	98.0	98.0
乙的温度/℃	…	35.0	40.0	45.0	49.5	54.0	58.3	62.5	66.6
丙的温度/℃	…	46.0	47.0	48.0	48.0	48.0	48.0	48.8	49.8

 

（1）根据记录表，请你判断下列说法正确的是    。

A．甲是蜡，乙是海波，丙是水              B．甲是海波，乙是蜡，丙是水

C．甲是水，乙是海波，丙是蜡              D．甲是水，乙是蜡，丙是海波

（2）在上表所示12min～15min时间内，下列说法正确的是      。

A．甲不断吸收热量，内能不变              B．乙不断吸收热量，内能不变

C．丙不断吸收热量，内能增加              D．丙吸收和放出热量相等，内能不变

 

完形填空 (共20小题；每小题1分，满分20分)
请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Certainly dustmen prefer to be known as "Reuse Collection and Disposal Officers". You may think that this is rather    36 , and it is better to call a spade a spade. But dustmen can be as    37  as people of any other occupation, though we must     38   that their job is not a    39    one in the world. We often take dustmen for granted. Perhaps because they usually come very early in the morning, before most people are     40   .We are likely to forget their     41   .Our dustbins are    42   regularly, but we    43    stop to think about the men who do this. However, it is one of the most important jobs in the world, and when there are no dustmen to    44   the rubbish, the general    45   soon becomes aware that something is wrong. Recently, the dustmen of England went on strike for higher wages.
During the first few days it was regarded as a    46  .But when the first two weeks had passed, and the dustbins were overflowing in nearly every backyard in the country, the joke did not seem so    47   any more.    48   the strike continued, people could not    49   the hills of rubbish around their dustbins, and they looked for other places in which to    50  it. Even Leicester Square, in the heart of West End of London, was    51   high with plastic bags full of smelly rubbish. This was a（n）    52   attraction that the people of London were not at all     53   to see. Even when the strike was over, it took several weeks for the country to get cleaned up completely. Perhaps now the English people appreciate the work of    54  dustmen rather more    55   and won't take them for granted any more.

【小题1】

A．clever B．silly C．interesting D．reasonable

【小题2】

A．sensitive B．careless C．hopeful D．shy

【小题3】

A．realize B．believe C．know D．admit

【小题4】

A．necessary B．difficult C．romantic D．heavy

【小题5】

A．away B．up C．down D．in

【小题6】.

A．existence

B．presence

C．absence

D．performance

【小题7】

A．cleaned B．filled C．emptied D．burned

【小题8】

A．generally B．frequently C．sometimes D．seldom

【小题9】

A．take away B．take off C．take up D．take on

【小题10】

A．society B．citizen C．public D．community

【小题11】

A．trick B．joke C．trouble D．show

【小题12】

A．pleasing B．excited C．stupid D．funny

【小题13】

A．When B．While C．As D．Because

【小题14】

A．bear B．contain C．manage D．control

【小题15】

A．keep off B．give up C．take care of D．get rid of

【小题16】

A．crowded B．piled C．fixed D．put

【小题17】

A．business B．industrial C．tourist D．agricultural

【小题18】.

A．disappointed

B．serious

C．nervous

D．happy

【小题19】

A．its B．her C．his D．their

【小题20】

A．highly B．eagerly C．lowly D．entirely