一、John 分享了一篇关于蚂蚁的短文。
请阅读短文，用方框中所给短语的适当形式填空。每个短语限用一次。
be home to in order to
play an important part
for this reason be connected with
Ants are among the most amazing insects on earth. They live in large
groups and each nest 1. thousands of ants.
Ants have different jobs, and they 2. each other closely. Worker ants search for food most of the time. 3. find enough food for the group, they travel far. They use smell to find food and leave trails(踪迹) for other ants to follow.
Ants also 4. in the ecosystem. They act like nature's cleaners by breaking down plants and animals after they die.
Ants can even carry things many times heavier than themselves. Some can carry up to 50 times their own body weight! 5. , they are among the strongest animals on earth considering(考虑到) their size.

1. is home to
2. are connected with
3. In order to
4. play an important part
5. For this reason

【分析】
本题为英语短语填空题型，解题思路为：1. 先通读短文，把握短文大意；2. 逐个分析每个空格所在句子，结合语境判断所需短语的含义；3. 依据句子的语法规则（如主谓一致、介词短语首字母大写等）调整短语的适当形式；4. 确保每个短语仅使用一次，符合上下文逻辑。
【解析】
1. 主语each nest为单数，短语be home to意为“是……的家园”，故填is home to；
2. 主语为they，短语be connected with意为“与……有关联”，故填are connected with；
3. 空格后为动词原形find，需表目的的短语，in order to符合，且句首单词首字母大写，故填In order to；
4. 短语play an important part意为“起重要作用”，主语为they，用原形即可，符合语境，故填play an important part；
5. 前文说明蚂蚁能搬运重物，后文得出结论“是地球上最强壮的动物之一”，为因果关系，用for this reason，句首首字母大写，故填For this reason。
【答案】
1. is home to
2. are connected with
3. In order to
4. play an important part
5. For this reason
【知识点】
英语短语运用、介词短语用法、be动词短语形式变化
【点评】
本题考查学生对给定短语的词义理解、语境适配及语法形式的调整能力，属于英语基础题型，需结合上下文逻辑和句子语法规则解题，难度适中。
【难度系数】
0.6