思维导图如下
（1）wait for +sb./sth./时间段“ 等候……” for是介词。
wait for me 等候我
wait for a bus等公交车
wait for about twenty minutes 等了大约20分钟
(2) wait +时间段+for+sb./sth.
wait a long time for the train（人教版八上Unit 1)等火车等了好久
wait for sb./sth.+for+时间段
Yesterday I waited for my sister for over an hour.昨天，我等我妹妹等了一个多小时。
(3) wait for sb.to do 等某人做某事
He is waiting for me to go to the store together.他正在等我一起去商店。
(4) can't/could't wait to do迫不及待地做某事，等不及做某事
He could't wait to open the door.他迫不及待地打开了门。
(5) wait a minute 等一会儿
wait a moment 等一会儿
just a moment 请稍等
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