五、根据短文的内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
Do you know sloths（树懒）? You may see sloths on TV or on the Internet. 1 So people around the world love this kind of animals.
2 It takes them about two or three hours to walk a kilometer. Sloths are slow and lazy on land, but they can swim very well.
Sloths often spend most of their daytime sleeping in the trees. ______ 3 ______ When do they eat their meals then? Of course at night! When they wake up at night, they begin to eat leaves on the trees. ______ 4 ______ Sloths are rare（稀有的）animals in the world. We can see them mainly in the forests of Central and South America. ______ 5 ______

1. 2. 3. 4. 5.

1.E 2.A 3.F 4.G 5.C

【分析】
这是一道七选五阅读理解题，需结合上下文的语境和逻辑关系选择匹配的句子。解题思路：先通读全文了解树懒的话题，再逐个分析每个空前后的内容，找到能衔接上下文的选项：第1空需引出树懒受人们喜爱的原因；第2空对应树懒在陆地的行走特点；第3空承接树懒睡觉的内容；第4空关联树懒的生存环境；第5空顺承树懒稀有需保护的结论。
【解析】
1. 第1空：后文提到“全世界的人都喜欢这种动物”，前文需说明树懒的优点，E选项“They look kind of lazy, but they are very funny and lovely.”符合引出喜爱原因的语境，故选E。
2. 第2空：后文讲树懒在陆地上行走缓慢，A选项“When we put sloths on land（陆地），they walk very slowly.”直接对应陆地行走慢的内容，故选A。
3. 第3空：前文说树懒白天大部分时间在树上睡觉，F选项“They can sleep for 15 to 20 hours a day!”补充睡觉时长，衔接紧密，故选F。
4. 第4空：前文提到树懒晚上吃树上的树叶，G选项“So they can't live with no forests all their lives.”顺承得出树懒依赖森林的结论，故选G。
5. 第5空：前文说明树懒稀有且仅分布在特定森林，C选项“So we must protect them.”顺承提出保护建议，故选C。
【答案】
1.E 2.A 3.F 4.G 5.C
【知识点】
阅读理解七选五、语篇逻辑衔接
【点评】
本题围绕树懒的特点、习性及保护展开，考查学生对语篇上下文逻辑的理解能力，需结合语境匹配句子，难度适中。
【难度系数】
0.5