四、跨学科生物 阅读理解。
主题群:自然生态 子主题:动物科普 语篇类型:说明文 难度:★★★
You stand in a garden. A low noise reaches your ears. You see a small insect flying near your head. You turn to look, and it flies out of sight. There it is again! You move slowly. You can see yellow and black stripes on it.
Is it a bee? It lands on a flower, and you take a closer look.
Bees fold(折叠）their wings onto their backs when they stop flying. But this insect's wings spread out like a fly's. That's because it is a fly—a flower fly.
Many flower flies look like bees. This helps keep them safe from animals that may want to eat them. Insects with yellow and black stripes usually have stingers(刺). Insect eaters, such as some birds and frogs, need to get stung only once to know that stripes mean trouble. Flower flies can't sting, but insect eaters see the stripes and leave the flies alone.
Flower flies spend most of their time looking for food. Like bees, flower flies eat pollen(花粉）and nectar(花蜜). This makes it easy for them to be found in a garden full of flowers. They are helpful garden insects just like bees. Adult flower flies move pollen from one flower to another, which helps some flowers grow into fruit.
Flower flies can stay in one place while flying. Most insects move forward when they fly. But flower flies can twist their wings, much like hummingbirds do. Twisting keeps them in one place, so they can remain over flowers, leaves, or even you!
()1. In which part of a magazine can we probably see this passage?
A. Nature. B. Culture. C. Fashion. D. Health.
()2. In which way are bees and flower flies different?
A. The food that they eat. B. The colour of their stripes.
C. The way they help garden flowers grow. D. The shape of wings when they stop flying.
()3. What does the underlined phrase “leave the flies alone” in Paragraph 4 mean?
A. Make friends with the flies. B. Eat the flies up.
C. Keep away from the flies. D. Invite the flies in.
()4. What might the writer of the passage agree with?
A. People usually prefer bees to flower flies.
B. People sometimes mistake flower flies for bees.
C. People should stop birds eating bees and flower flies.
D. People should have beautiful gardens in their neighbourhood.

1~4. ADCB

【分析】这是一篇自然生态主题的英语说明文阅读理解，解题思路为：先通读全文把握文章主旨（介绍花蝇的特征与生态作用），再针对每个小题回到原文定位关键信息，结合上下文逻辑逐一分析选项。具体来说，第1题需根据文章主题判断杂志板块；第2题需定位蜜蜂与花蝇的差异细节；第3题需结合上下文推断短语含义；第4题需结合花蝇模仿蜜蜂的内容判断作者观点。
【解析】1. 文章围绕花蝇的生态特征展开，属于自然科普内容，对应杂志的Nature板块，故选A。2. 根据第三段“Bees fold their wings onto their backs when they stop flying. But this insect's wings spread out like a fly's.”可知，蜜蜂和花蝇停飞时翅膀形状不同，故选D。3. 第四段提到有黄黑条纹的昆虫通常有刺，天敌被蛰后会避开这类条纹昆虫，而花蝇无刺，故“leave the flies alone”意为“远离花蝇”，选C。4. 第二段提到人们会把花蝇当成蜜蜂，第四段也说明很多花蝇外形像蜜蜂，因此作者会同意人们有时认错花蝇和蜜蜂，选B。
【答案】ADCB
【知识点】英语阅读理解、细节理解、词义猜测
【点评】本题为自然生态类英语阅读理解题，考查学生的信息定位、细节分析及词义推断能力，题型常规，贴合初中英语阅读考点，难度适中。
【难度系数】0.7