下列化学术语或表示方法错误的是（   ）

Even today, most Americans prefer coffee tea.

Houses in China's big cities are so unreasonably expensive that generally young couples can't afford _______ without their parents' financial support.

¹²C与¹⁴C互为（   ）

阅读下面的材料，根据要求写作。

近些年的春节，全国各地一些县级城市出台了禁止春节期间燃放烟花爆竹的相关规定，违规燃放的家庭及单位要被处以罚金。此事引起社会极大反响，反对者说，不能借单个的安全与局部的卫生状况来消减中国传统文化元素；而赞成者说，传统文化的坚守亦应与时俱进。

《嘉州日报》就上述讨论开辟了专栏，展开读者大讨论。请你以一名高中生的身份，给读者专栏写一封信，表明你的态度，体现你的思考。

要求：结合材料，选好角度，确定立意，明确文体，自拟标题；不要套作，不得抄袭；不得泄露个人信息；不少于800字。

我们用了不到规定时间的一半跑完全程。（比较级）

We finished the run in allowed.

Talking to teenagers can be difficult some parent s.

已知集合S={a，b，c}中的三个元素可构成 ABC的三条边长，那么 ABC一定不是（   ）

阅读理解

    Could cities that float on the sea solve the problems caused by floods and provide food for the world?

    Some scientists think so. The idea is already being tested and they believe that floating cities will provide more homes for a growing population, without having to use land needed to grow food. And they believe floating areas will allow more food to be grown, so that no one in the world is in hunger.

    In some places, cities that float on the sea are already being planned. A company in the Netherlands called DeltaSync thinks that sea cities will save the world, with more than one in ten people living in them.

    They say sea cities can solve many of the problems the world faces in the 21st century, like not having enough land, more and more people needing homes, fossil fuels (矿物燃料)running low and the increasingly serious problems caused by floods.

    DeltaSync says building in the desert is not possible because there is no enough water and that developing ways for people to live in space is still too expensive. So they believe the answer is our oceans, which cover over two-thirds of the Earth's surface. Their plans for floating areas include using algae (藻类）to produce fuels and food.

    More than a quarter of the land in the Netherlands already lies underwater and scientists there have spent years trying to find ways to deal with it. In the city of Rotterdam they already have floating homes.

    Bart Roeffen from DeltaSync says, "We have plans for neighborhoods including roads and, in the end, I believe we can build floating cities on the sea."

下列句中都有通假字的一项是（   ）

Do you like the book she paid $10? （介词+which/whom）

The Second World War_______ millions of people were killed ended in 1945.

Mr. Lee suggested that all of us go out to have a walk to refresh our mind ________ classes.

属于同位素的两种微粒是（    ）

某元素由2种同位素组成，其原子比为5：2，第一种同位素的二价阳离子有27个电子，34个中子；第二种同位素原子的中子数比第一种多2个，该元素的平均近似相对原子质量为（   ）

将Cu片放入0.1mol•L^﹣1FeCl₃溶液中，反应一定时间后取出Cu片，溶液中的C（Fe³⁺）：C（Fe²⁺）=2：3，则Cu²⁺与Fe²⁺的物质的量之比为（   ）

Though they are not very sure of the long-term_____, all the scientists agree to start the research immediately.

请用适当情态动词填空，每空一词。

阅读下面这首唐诗，完成问题。

隋宫^①

李商隐

紫泉宫殿锁烟霞，欲取芜城作帝家。

玉玺不缘归日角^② ， 锦帆应是到天涯。

于今腐草无萤火^③ ， 终古垂杨有暮鸦。

地下若逢陈后主，岂宜重问《后庭花》？

【注释】①此诗是诗人晚年江东之游时所作，约作于唐宣宗大中十一年（857年），当时李商隐因柳仲郢推荐，任盐铁推官，游江东。②日角：帝王相，此喻指李渊。③古人以为萤火虫是腐草变化出未的。《隋书·炀纪》：“大业十二年，上于景华宫征求萤火，得数斛，夜出游山放之，光遍岩谷。”

A is the act of saying or showing publicly that you are against something.