Tim's English was very poor when he came to England,so he couldn't make himself understood.
问题描述：
Tim's English was very poor when he came to England,so he couldn't make himself understood.
这里为什么用understood而不用understand
答
“make＋宾语＋V-ed（过去分词作宾补）”这个结构指宾语接受后面的那个动作,表示被动的意思,意为 “使某人 / 某事被……”.如：The strange noise made us frightened.奇怪的声音使我们感到恐惧.The good news made us excited.这个好消息使我们兴奋.友情提示：通常情况下,make后的宾语是反身代词时,作宾补的动词要用过去分词,即：make oneself＋V-ed （heard,known,understood）.如：He couldn't make himself heard above the noise of the traffic.在交通嘈杂声中他无法使自己的声音提高到让别人听到.但有时,根据句子意思也可用其他形式.如：The little child stood on the chair to make himself look taller.那个小孩儿站在椅子上,使他看上去更高些.Rock singers,on the other hand,make music their life.摇滚乐歌手,另一方面,把音乐当作他们的生命.