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任务二 阅读理解
There are many kinds of butterflies in North America. Monarchs and Pygmy Blues are two examples. These two insects have some of the same features. They taste leaves with their feet. They can only see the colours red, yellow and green. However, they are different from each other in many ways too.
Size and colour
The Pygmy Blue is the smallest butterfly in the world. It is 1.2 cm across. Monarchs are bigger. They are about 10 cm across.
Monarchs are bright orange and black. They are quite visible(可见的). Pygmy Blues are brown and blue. They are harder to see. You could be right next to a Pygmy Blue and not even notice it.
Moving around
Each year, most butterflies migrate. Monarchs travel a long way, farther than any other butterfly. Some travel more than 5,000 km! Pygmy Blues, on the other hand, take shorter trips. Both move for the same reasons. They move to warmer places when it gets cold. They also move to find food.
Food
Both Pygmy Blues and Monarchs drink nectar(花蜜). Pygmy Blues can drink many kinds of nectar. Food is easy for them to find. However, finding food is harder for Monarchs. They can only drink nectar from the milkweed plant.
When people build new houses and roads, milkweed plants are lost. So Monarchs have more trouble finding food as time goes on. And the number of Monarchs becomes smaller each year.
People today have learnt that some insects must be protected. They work to make laws to save those in danger. Learning about butterflies and what they need is important. That way, we can help them survive now and in the future.
(
A. Red. B. Yellow. C. Green. D. Blue.
(
A. get sick B. move from one part to another
C. fight for food D. disappear easily
(
A. Monarchs are much smaller than Pygmy Blues.
B. Pygmy Blues take longer trips than Monarchs to migrate.
C. Finding food is easier for Pygmy Blues than Monarchs.
D. There are more people helping Pygmy Blues than Monarchs.
(
A. By telling stories. B. By giving facts.
C. By following the order of time. D. By following the order of importance.
There are many kinds of butterflies in North America. Monarchs and Pygmy Blues are two examples. These two insects have some of the same features. They taste leaves with their feet. They can only see the colours red, yellow and green. However, they are different from each other in many ways too.
Size and colour
The Pygmy Blue is the smallest butterfly in the world. It is 1.2 cm across. Monarchs are bigger. They are about 10 cm across.
Monarchs are bright orange and black. They are quite visible(可见的). Pygmy Blues are brown and blue. They are harder to see. You could be right next to a Pygmy Blue and not even notice it.
Moving around
Each year, most butterflies migrate. Monarchs travel a long way, farther than any other butterfly. Some travel more than 5,000 km! Pygmy Blues, on the other hand, take shorter trips. Both move for the same reasons. They move to warmer places when it gets cold. They also move to find food.
Food
Both Pygmy Blues and Monarchs drink nectar(花蜜). Pygmy Blues can drink many kinds of nectar. Food is easy for them to find. However, finding food is harder for Monarchs. They can only drink nectar from the milkweed plant.
When people build new houses and roads, milkweed plants are lost. So Monarchs have more trouble finding food as time goes on. And the number of Monarchs becomes smaller each year.
People today have learnt that some insects must be protected. They work to make laws to save those in danger. Learning about butterflies and what they need is important. That way, we can help them survive now and in the future.
(
D
) 1. Which of the following colours is not visible for Monarchs and Pygmy Blues?A. Red. B. Yellow. C. Green. D. Blue.
(
B
) 2. The underlined word “migrate” in paragraph 4 means “”.A. get sick B. move from one part to another
C. fight for food D. disappear easily
(
C
) 3. Which of the following is TRUE about the two kinds of butterflies?A. Monarchs are much smaller than Pygmy Blues.
B. Pygmy Blues take longer trips than Monarchs to migrate.
C. Finding food is easier for Pygmy Blues than Monarchs.
D. There are more people helping Pygmy Blues than Monarchs.
(
B
) 4. How does the passage mainly develop?A. By telling stories. B. By giving facts.
C. By following the order of time. D. By following the order of importance.
答案
1. D 2. B 3. C 4. B
解析
【分析】
本题为英语阅读理解题，需结合原文内容逐一分析各题：
1. 题干询问两种蝴蝶无法看到的颜色，需定位原文中关于它们视觉颜色的描述，对比选项得出答案；
2. 题干要求猜测划线词“migrate”的含义，需结合该词所在段落的上下文（关于移动的目的描述）推断词义；
3. 题干需判断关于两种蝴蝶的正确描述，需逐一核对每个选项与原文内容是否匹配，排除错误选项；
4. 题干询问文章的主要展开方式，需分析文章结构，判断其采用的写作手法。
【解析】
1. 根据原文第一段“They can only see the colours red, yellow and green.”可知，两种蝴蝶只能看到红、黄、绿三种颜色，看不到蓝色，故选D。
2. 第四段提到“Most butterflies migrate”后，说明它们“move to warmer places when it gets cold. They also move to find food”，由此可知“migrate”意为“从一个地方移动到另一个地方”，对应B选项。
3. A选项：原文指出Pygmy Blue是世界最小蝴蝶，Monarch更大，A错误；B选项：原文说明Monarch迁徙距离比Pygmy Blue远，B错误；C选项：原文提到Pygmy Blue能喝多种花蜜，食物易找，Monarch只能从马利筋获取花蜜，找食物更难，C正确；D选项：原文未提及帮助Pygmy Blue的人更多，D错误，故选C。
4. 文章通过列举两种蝴蝶的大小、颜色、迁徙、食物等具体事实展开，未采用讲故事、时间顺序或重要性顺序，故选B。
【答案】
1.D 2.B 3.C 4.B
【知识点】
英语阅读理解、细节理解、词义猜测
【点评】
本题围绕北美两种蝴蝶的特征设置题目，考查学生的信息定位、词义推断和主旨归纳能力，需学生仔细研读原文，对应选项验证，整体难度适中。
【难度系数】
0.6
本题为英语阅读理解题，需结合原文内容逐一分析各题：
1. 题干询问两种蝴蝶无法看到的颜色，需定位原文中关于它们视觉颜色的描述，对比选项得出答案；
2. 题干要求猜测划线词“migrate”的含义，需结合该词所在段落的上下文（关于移动的目的描述）推断词义；
3. 题干需判断关于两种蝴蝶的正确描述，需逐一核对每个选项与原文内容是否匹配，排除错误选项；
4. 题干询问文章的主要展开方式，需分析文章结构，判断其采用的写作手法。
【解析】
1. 根据原文第一段“They can only see the colours red, yellow and green.”可知，两种蝴蝶只能看到红、黄、绿三种颜色，看不到蓝色，故选D。
2. 第四段提到“Most butterflies migrate”后，说明它们“move to warmer places when it gets cold. They also move to find food”，由此可知“migrate”意为“从一个地方移动到另一个地方”，对应B选项。
3. A选项：原文指出Pygmy Blue是世界最小蝴蝶，Monarch更大，A错误；B选项：原文说明Monarch迁徙距离比Pygmy Blue远，B错误；C选项：原文提到Pygmy Blue能喝多种花蜜，食物易找，Monarch只能从马利筋获取花蜜，找食物更难，C正确；D选项：原文未提及帮助Pygmy Blue的人更多，D错误，故选C。
4. 文章通过列举两种蝴蝶的大小、颜色、迁徙、食物等具体事实展开，未采用讲故事、时间顺序或重要性顺序，故选B。
【答案】
1.D 2.B 3.C 4.B
【知识点】
英语阅读理解、细节理解、词义猜测
【点评】
本题围绕北美两种蝴蝶的特征设置题目，考查学生的信息定位、词义推断和主旨归纳能力，需学生仔细研读原文，对应选项验证，整体难度适中。
【难度系数】
0.6
