训练2：（江西中考）2. Some bamboo grows so quickly that people say they can watch it grow. The speed of growth depends on the type of bamboo, the earth and the season.
A. You can still visit it today.
B. There are over 1,000 uses for it.
C. However, none worked very well.
D. Bamboo is light because it is empty inside.
E. It can also be found in other parts of the world.
F. Chinese people like drawing pictures of bamboo.
G. The fastest growing plant in the world is bamboo.

G 根据下文“Some bamboo grows so quickly that people say they can watch it grow.”可知，竹子长得很快；G项的“fastest growing”和“bamboo”是下文的词汇复现。

【分析】首先观察空格后的句子，其核心信息是“竹子生长非常快，人们甚至能看着它生长”，说明空格处需要引出竹子生长速度快的相关内容，需结合上下文的词汇复现来匹配选项。
【解析】第一步：提取空格后句子的关键信息“bamboo grows so quickly”；第二步：逐一分析选项，A项讲参观相关内容、B项讲竹子的用途、C项讲效果、D项讲竹子轻的原因、E项讲竹子的分布、F项讲画竹子，均与“生长快”无关；第三步：G项“The fastest growing plant in the world is bamboo.”中的“fastest growing”与下文的“grows so quickly”形成词汇复现，且主语为竹子，符合语境，因此选G。
【答案】G
【知识点】英语句子填空、词汇复现
【点评】本题考查学生对语境的理解能力及词汇复现的运用，需结合上下文关键词匹配选项，难度适中。
【难度系数】0.6

例题3:(苏州中考)5. Many office buildings now turn off their lights at night. This helps reduce the number of birds that fly into buildings and it also helps save energy.
A. The answer is glass.
B. People are trying to solve the problem.
C. These birds have no idea what glass is.
D. As a result, they fly right into the glass.
E. In this way, they can avoid crashing into glass.
F. People don't know how to deal with the problem.
G. This is a big problem, especially on foggy and rainy nights.

B 根据下文可知,本段介绍了人们对“鸟撞玻璃”这一问题的解决办法;此处位于段首,为段落的主题句。

【分析】首先，空格位于段首，需选择能引出下文内容的段落主题句。下文提到“很多办公楼晚上关灯，帮助减少鸟撞楼、节能”，这是人们针对“鸟撞建筑物”问题采取的解决措施，因此段首句应体现“人们尝试解决相关问题”的逻辑，需逐一分析选项匹配度。
【解析】逐一分析选项：A选项“答案是玻璃”与下文解决措施无关，排除；B选项“人们正试着解决问题”，引出下文的具体解决办法（关灯），符合段首主题句的作用；C选项“鸟不知道玻璃是什么”是撞玻璃的原因，与下文解决措施的主题不符，排除；D选项“结果它们撞玻璃”是撞的结果，非段首主题，排除；E选项“这样避免撞玻璃”是关灯的效果，属于后续内容，排除；F选项“人们不知道怎么处理”与下文已采取措施矛盾，排除；G选项“这是大问题，尤其雾雨夜晚”侧重问题严重性，下文讲解决办法，不符合段首引出逻辑，排除。因此选B。
【答案】B
【知识点】英语阅读理解（段落主题句）
【点评】本题考查英语阅读理解中段落主题句的选择，需结合上下文逻辑关系，明确段首句的功能（引出下文内容），难度适中。
【难度系数】0.6

训练3: （济南中考）Well, to start with, it's great for our mental(心理) health ...
3. We go out a lot more when we're on holiday by the sea. We often become more active on holidays and people who live on the coast are usually more active too. 4G. And if you take your walks on the beach, this is a lot better. Walking on sand requires more effort than on the pavement. And the sea air is good for people with breathing problems too.
A. Breathing the air in the city makes you more active.
B. Others usually have to wait for the next vacation.
C. Being by the sea is also good for our physical health.
D. Kids especially like to have fun by the sea in summer.
E. Naturally we often feel so great at the end of a seaside holiday.
F. The sound of them can help us relax and feel free from stress.

C 根据上文“it’s great for our mental health”在海边对心理健康有好处和下文的内容可知，此处承上启下，引出下文在海边对人们身体健康的好处。

【分析】
首先确定空格位于段首，需起到承上启下的作用。上文提到海边对心理健康有益，下文围绕在海边的活动（沙滩散步、海风对呼吸的益处）展开，这些内容均属于身体健康范畴，因此需选择能连接心理健康与身体健康的选项。
【解析】
空格位于段首，需承上启下。上文点明海边对心理健康的好处，下文围绕在海边的活动及海风对呼吸的益处展开，均属于身体健康相关内容。逐一分析选项：A项涉及城市空气，与海边语境不符；B项提及他人等待假期，与上下文无关；C项指出海边对身体健康有益，既承接上文的心理健康，又引出下文的身体健康相关内容，符合逻辑；D项强调孩子夏天喜欢海边玩耍，下文未涉及孩子相关内容；F项提到声音帮助放松，下文未提及声音的作用。因此选C。
【答案】
C
【知识点】
英语七选五阅读、段落逻辑衔接
【点评】
本题为中考英语七选五题型，考查段落首句的逻辑衔接功能，需准确把握上下文的语义关联，难度适中。
【难度系数】
0.5