(C)
Do you like blue whales(鲸) and kangaroos(袋鼠)? Do you know about them? Now let me introduce them to you. Well, the blue whales are very beautiful animals in the world. 1 They have a big body. 2
They feed on small fishes and other sea animals. Kangaroos live in Australia. They are very famous because of their looks and the way they walk. 3 Their front legs are small, but their back legs are very large. They also have long tails.
But blue whales are in great danger(危险). People make water dirty(脏的). A lot of sea animals can't live. People also kill(杀死) the blue whales for meat(肉) and oil(油). 4 Some of them live in the places that don't have much water. 5 So kangaroos have little food to eat. Blue whales and kangaroos are our friends. We should take part in some activities to care for them.
根据短文内容，从选项中选出能填入空白处的最佳选项(其中有两项为多余选项)。
A. I love blue whales very much.
B. They have small heads.
C. They live in the seas.
D. Trees and grass can't grow well.
E. They are important to us.
F. But they swim very fast.
G. Kangaroos are in great danger, too.
1. 2. 3. 4. 5.

1. C 2. F 3. B 4. G 5. D

【分析】首先通读全文，明确文章围绕蓝鲸和袋鼠的介绍及它们的生存现状展开，需结合每个空的前后语境，分析选项与上下文的逻辑衔接关系，逐一匹配最佳选项。
【解析】1. 前文介绍蓝鲸是世界上美丽的动物，后文提及蓝鲸的身体特征，选项C“它们生活在海里”符合蓝鲸的生存环境，衔接自然，故选C；2. 前文讲蓝鲸的身体，后文说明其食物来源，选项F“但它们游得很快”补充蓝鲸的特点，过渡合理，故选F；3. 本段介绍袋鼠的外形，后文提到袋鼠前后腿的特征，选项B“它们头小”属于外形描述，符合语境，故选B；4. 前文讲述蓝鲸处于危险中，后文转向袋鼠的处境，选项G“袋鼠也处于极大危险中”承上启下，故选G；5. 后文说明袋鼠没有食物，选项D“树和草长得不好”是袋鼠缺少食物的原因，逻辑通顺，故选D。
【答案】1.C 2.F 3.B 4.G 5.D
【知识点】英语阅读理解、七选五题型、语境推理
【点评】本题为英语阅读理解中的七选五题型，围绕蓝鲸与袋鼠的介绍及生存现状设题，需结合上下文语境分析选项，考查学生的语篇逻辑理解能力，难度适中。
【难度系数】0.5