登录
Ⅲ. 根据短文内容,从短文后的方框中选出能填入空白处的最佳选项,其中有一项为多余选项。
Think about a world without insects. It might sound nice at first. There would be no flies in your room.
The number of insects is becoming less and less, according to British biologist Dave Goulson. "In the 27 years from 1989 to 2016, the number of insects fell by 75%," he wrote.
What would happen without insects?
"The first step to stop this is to let more people understand the values(价值) of the natural world," Goulson said. "
A. Why did the number of insects fall?
B. It's almost impossible to give an answer.
C. But in fact, this could be really bad news.
D. The best place to start is with our children.
E. Without insects, many animals would have nothing to eat.
F. Scientists say the main reason is the use of pesticides(农药).
1.
Think about a world without insects. It might sound nice at first. There would be no flies in your room.
C
1The number of insects is becoming less and less, according to British biologist Dave Goulson. "In the 27 years from 1989 to 2016, the number of insects fell by 75%," he wrote.
F
2 They are bad for the places that insects live in.What would happen without insects?
B
3 But the results would be far-reaching(深远的). We need insects to pollinate crops(给庄稼授粉). They also break down dead plants and animals and turn them into new useful things. We need them to keep the soil healthy and do much more. E
4 They would go hungry and die. The ecosystem(生态系统) would be off balance."The first step to stop this is to let more people understand the values(价值) of the natural world," Goulson said. "
D
5 We should encourage them to protect the environment from an early age."A. Why did the number of insects fall?
B. It's almost impossible to give an answer.
C. But in fact, this could be really bad news.
D. The best place to start is with our children.
E. Without insects, many animals would have nothing to eat.
F. Scientists say the main reason is the use of pesticides(农药).
1.
C
2. F
3. B
4. E
5. D
答案
1.C 2.F 3.B 4.E 5.D
解析
【分析】
这是一篇关于昆虫减少的说明文，解题时要结合上下文语境，通过逻辑关系（转折、因果、指代等）来匹配选项：
1. 第1空：前文提到“没有昆虫的世界一开始听起来不错”，后文开始讲昆虫减少的坏影响，所以需要一个转折句引出“这其实是坏消息”，对应选项C。
2. 第2空：前文指出昆虫数量大幅减少，后文提到“They are bad for the places that insects live in.”，这里的“They”需要指代前文提到的事物，选项F中的“pesticides”是复数，且符合“危害昆虫栖息地”的描述，同时解释了昆虫减少的主要原因，对应选项F。
3. 第3空：前文提问“What would happen without insects?”，后文转折说“但影响深远”，说明前文应表达“很难给出完整答案”，对应选项B。
4. 第4空：后文提到“They would go hungry and die.”，这里的“They”指代动物，选项E直接说明“没有昆虫，很多动物会没有食物”，与后文的“挨饿死亡”衔接紧密，对应选项E。
5. 第5空：后文提到“We should encourage them to protect the environment from an early age.”，这里的“them”指代孩子，选项D提到“从孩子开始是最佳起点”，与后文的“从小鼓励”呼应，对应选项D。
【解析】
1. 第1空：前文描述“没有昆虫的世界似乎不错”，C选项“But in fact, this could be really bad news.”形成转折，引出下文昆虫减少的负面内容，符合语境。
2. 第2空：前文提出昆虫数量锐减，F选项“Scientists say the main reason is the use of pesticides(农药).”解释了减少的主要原因，且后文的“They”指代“pesticides”，逻辑连贯。
3. 第3空：前文提问无昆虫的后果，B选项“It's almost impossible to give an answer.”承接问题，后文转折说明影响深远，符合逻辑。
4. 第4空：E选项“Without insects, many animals would have nothing to eat.”直接点明动物的生存依赖昆虫，后文“They would go hungry and die.”是该句的结果，衔接自然。
5. 第5空：D选项“The best place to start is with our children.”与后文“We should encourage them to protect the environment from an early age.”中的“them”（指代children）呼应，符合倡议的逻辑。
【答案】
1.C 2.F 3.B 4.E 5.D
【知识点】
1. 说明文语境衔接
2. 逻辑关系判断
3. 代词指代理解
【点评】
本题考查说明文的语篇衔接能力，需要学生结合上下文的逻辑关系（转折、因果、指代）来选择合适的句子，既考查对文章主旨的理解，也考查细节逻辑的把控，有助于提升学生的语篇分析能力。
【难度系数】
0.6
这是一篇关于昆虫减少的说明文，解题时要结合上下文语境，通过逻辑关系（转折、因果、指代等）来匹配选项：
1. 第1空：前文提到“没有昆虫的世界一开始听起来不错”，后文开始讲昆虫减少的坏影响，所以需要一个转折句引出“这其实是坏消息”，对应选项C。
2. 第2空：前文指出昆虫数量大幅减少，后文提到“They are bad for the places that insects live in.”，这里的“They”需要指代前文提到的事物，选项F中的“pesticides”是复数，且符合“危害昆虫栖息地”的描述，同时解释了昆虫减少的主要原因，对应选项F。
3. 第3空：前文提问“What would happen without insects?”，后文转折说“但影响深远”，说明前文应表达“很难给出完整答案”，对应选项B。
4. 第4空：后文提到“They would go hungry and die.”，这里的“They”指代动物，选项E直接说明“没有昆虫，很多动物会没有食物”，与后文的“挨饿死亡”衔接紧密，对应选项E。
5. 第5空：后文提到“We should encourage them to protect the environment from an early age.”，这里的“them”指代孩子，选项D提到“从孩子开始是最佳起点”，与后文的“从小鼓励”呼应，对应选项D。
【解析】
1. 第1空：前文描述“没有昆虫的世界似乎不错”，C选项“But in fact, this could be really bad news.”形成转折，引出下文昆虫减少的负面内容，符合语境。
2. 第2空：前文提出昆虫数量锐减，F选项“Scientists say the main reason is the use of pesticides(农药).”解释了减少的主要原因，且后文的“They”指代“pesticides”，逻辑连贯。
3. 第3空：前文提问无昆虫的后果，B选项“It's almost impossible to give an answer.”承接问题，后文转折说明影响深远，符合逻辑。
4. 第4空：E选项“Without insects, many animals would have nothing to eat.”直接点明动物的生存依赖昆虫，后文“They would go hungry and die.”是该句的结果，衔接自然。
5. 第5空：D选项“The best place to start is with our children.”与后文“We should encourage them to protect the environment from an early age.”中的“them”（指代children）呼应，符合倡议的逻辑。
【答案】
1.C 2.F 3.B 4.E 5.D
【知识点】
1. 说明文语境衔接
2. 逻辑关系判断
3. 代词指代理解
【点评】
本题考查说明文的语篇衔接能力，需要学生结合上下文的逻辑关系（转折、因果、指代）来选择合适的句子，既考查对文章主旨的理解，也考查细节逻辑的把控，有助于提升学生的语篇分析能力。
【难度系数】
0.6
