二、用作连系动词

　　构成系表结构：keep＋表语，意为"保持，继续(处于某种状态)"。其中表语可用形容词、副词、介词短语等充当。如：

　　you must look after yourself and keep healthy.(形容词)你必须照顾好自己，保持身体健康。

　　keep off the grass.(副词)请勿践踏草地。

　　traffic in britain keeps to the left.(介词短语)英国的交通是靠左边行驶的。

　　注意：一般情况下，keep后接形容词较为多见。再如：

　　she knew she must keep calm.她知道她必须保持镇静。

　　please keep silent in class.课堂上请保持安静。

　　三、与介词或副词搭配，构成动词短语

　　1.keep away意为"(使)离开；(使)不接近"，其后常接介词from。如：

　　would you keep your dog away from my boy, please? 请把狗拉得离我孩子远点好吗？

　　keep everybody away from the accident.人人远离事故！

　　2.keep back意为"阻止；留在后面"。如：

　　she sat down quietly, but she couldn't keep

　　back her tears.她静静地坐下来，却忍不住流下了眼泪。

　　3.keep together意为"在一起；动作协调"。如：

　　keep together, please.请聚在一起。

　　the eight men kept together during the boat race as though they were one.赛船时，这8个人动作协调，好像一个人似的。

　　4.keep up意为"持续；使不低落"。如：

　　the noise kept up all night.噪音整夜持续着。

　　to keep your strength up, eat well and get　enough sleep.为了保持力气，要吃好、睡足。

　　5.keep up with意为"跟上；和……来往"。如：

　　i'm trying my best to keep up with the others in class.我正在设法赶上班里的其他人。

　　do you still keep up with tom? 你和汤姆还有联系吗？

　　6.keep...in mind意为"把……记在心里"。如：

　　the teacher asked us to keep these sentences in mind.老师要我们把这些句子记在心里。

　二、用作连系动词

　　构成系表结构：keep＋表语，意为"保持，继续(处于某种状态)"。其中表语可用形容词、副词、介词短语等充当。如：

　　you must look after yourself and keep healthy.(形容词)你必须照顾好自己，保持身体健康。

　　keep off the grass.(副词)请勿践踏草地。

　　traffic in britain keeps to the left.(介词短语)英国的交通是靠左边行驶的。

　　注意：一般情况下，keep后接形容词较为多见。再如：

　　she knew she must keep calm.她知道她必须保持镇静。

　　please keep silent in class.课堂上请保持安静。

　　三、与介词或副词搭配，构成动词短语

　　1.keep away意为"(使)离开；(使)不接近"，其后常接介词from。如：

　　would you keep your dog away from my boy, please? 请把狗拉得离我孩子远点好吗？

　　keep everybody away from the accident.人人远离事故！

　　2.keep back意为"阻止；留在后面"。如：

　　she sat down quietly, but she couldn't keep

　　back her tears.她静静地坐下来，却忍不住流下了眼泪。

　　3.keep together意为"在一起；动作协调"。如：

　　keep together, please.请聚在一起。

　　the eight men kept together during the boat race as though they were one.赛船时，这8个人动作协调，好像一个人似的。

　　4.keep up意为"持续；使不低落"。如：

　　the noise kept up all night.噪音整夜持续着。

　　to keep your strength up, eat well and get　enough sleep.为了保持力气，要吃好、睡足。

　　5.keep up with意为"跟上；和……来往"。如：

　　i'm trying my best to keep up with the others in class.我正在设法赶上班里的其他人。

　　do you still keep up with tom? 你和汤姆还有联系吗？

　　6.keep...in mind意为"把……记在心里"。如：

　　the teacher asked us to keep these sentences in mind.老师要我们把这些句子记在心里。