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.

训练2 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，核心内容是“竹子生长速度很快”，解题时需结合上下文的语义关联和词汇复现来匹配选项，找到能引出“竹子生长快”这一话题的句子。
【解析】空格后句子强调竹子生长速度快，G选项“世界上生长最快的植物是竹子”，其中“fastest growing”与下文“grows so quickly”语义呼应，且均提到“bamboo”，符合上下文逻辑，起到引出话题的作用。
【答案】G
【知识点】英语阅读理解（句子填空）、词汇复现
【点评】本题通过上下文语义和词汇复现即可快速确定答案，属于基础题型，考查学生对语篇逻辑的把握能力。
【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.

5. 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】本题为英语补全句子题，需选择段首的主题句。解题思路：首先明确段首句通常是段落的主题句，起到总领下文的作用；再结合下文内容，下文介绍了办公楼关灯减少鸟撞、节能的措施，说明本段围绕“人们解决鸟撞建筑的问题”展开，因此段首应点明这一主题，从而选出正确选项。
【解析】段首句需总领下文，下文提到人们通过关灯减少鸟撞、节能，对应B选项“People are trying to solve the problem.”（人们正试图解决这个问题），点明了段落主题，符合语境。
【答案】B
【知识点】英语补全句子、段落主题句
【点评】本题考查学生对段落主题句的理解与运用，需结合上下文逻辑分析，难度适中。
【难度系数】0.5

解析: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。

5. 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】本题是英语阅读理解中的段落主题句选择题。解题思路：① 先明确空格位于段首，作用是统领整个段落，属于段落主题句；② 接着分析空格后的内容，可知下文围绕“鸟撞玻璃”问题的解决办法展开；③ 因此需选择能引出该解决办法的选项，对应答案B。
【解析】本题考查英语阅读的段落主题句判断。解题步骤：1. 定位空格：位于段首，为段落主题句，需统领下文；2. 分析下文内容：围绕“鸟撞玻璃”问题的解决办法展开；3. 匹配选项：符合该逻辑的选项为B，故答案选B。
【答案】B
【知识点】英语阅读理解、段落主题句
【点评】本题侧重考查学生对英语阅读中段落主题句的理解与判断能力，需结合上下文逻辑推导，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.

训练3 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】本题为英语七选五题型，需结合上下文逻辑关系解题。空格位于段中，需起到承上启下的作用：上文提到“it's great for our mental health（对心理健康有益）”，下文围绕在海边更活跃、沙滩行走费力、海风对呼吸有益等身体健康相关内容展开，因此空格应衔接“心理健康”与“身体健康”的话题。
【解析】逐一分析选项：A项提及城市空气，与海边语境不符；B项说等待下一个假期，与上下文话题无关；C项“在海边也对我们的身体健康有好处”，既承接上文的心理健康话题，又引出下文关于身体健康的具体描述，符合逻辑；D项讲孩子夏天喜欢海边玩，未涉及健康相关内容；E项说假期结束感觉好，与前后文衔接不紧密；F项讲声音帮助放松，与下文的身体活动、呼吸问题无关。因此正确答案为C。
【答案】C
【知识点】英语七选五、上下文逻辑推理
【点评】本题考查七选五题型中承上启下句子的选择，需准确把握前后文的逻辑关联，是中考常见的基础题型，难度适中。
【难度系数】0.6