146【讲解】静姐考研英语每日一句 I 2020英二T1

每日长难句 146

原句：

"Rats have been shown to engage in multiple forms of reciprocal help and cooperation, including / what is referred to as direct reciprocity—/ where a rat will help another rat / that has previously helped them." says Quinn.

【2020 英语二 Text 1】

生词：

engage in sth. 从事某事，参加某事

multiple adj. 多样的

reciprocal adj. 互惠的，互相给予的

reciprocity n. 互惠，互相作用

previously adv. 事先，以前

分析：

📝主句：

"Rats have been shown to engage in multiple forms of reciprocal help and cooperation, including…says Quinn

📝从句：

• what is referred to as direct reciprocity

（宾语从句）

• where a rat will help another rat

（定语从句）

• that has previously helped them."

（定语从句）

译文：

“有研究显示，老鼠会进行多种形式的互助及合作，其中包括被称为'直接互惠'的行为，即老鼠会帮助之前帮助过自己的另一只老鼠。”Quinn说道。