2020高考英語一輪復習Unit 12
c.came across d.beat
提示:依據答語，排除a、d兩項；come across表示“遇到”，與句意相符。
答案:c
(2)（天津河西質量調查） —how did you find this poem?
—i ______ it while reading a classic novel.
a.came down b.came about
c.came across d.came up
提示:本題考查動詞短語的區別。come down降低，貶抑；come about發生，產生；come across碰到，遇到，偶然發現；come up上來，上升，抬頭。
答案:c
3.used to do
講：(用于表示過去持續或經常發生的事)曾經；過去常常
例：harry also learns to be brave and to do things he used to be afraid of.
哈利也變得大膽了，敢于做過去不敢做的事。
you used to see a lot of her,didn’t you?
你過去常見到她，是嗎？
鏈接•拓展
(1)be/get used to sth./doing sth.習慣于某事(做某事)
i used to get up late,but now i am used to getting up early.
我曾經起床很晚，但現在已習慣早起了。
(2)be used to do sth.被用來做……
練：(1)there ______many people ________in the office,but now nobody is allowed to.
a.used to be；smoking b.used to have；smoking
c.used to be；smoke d.used to have；smoke
提示:“過去曾經有……”用“there used to be...”表示；“有人干某事”用“there be someone doing sth.”表示。故選a。
答案:a
(2)when he first got to hainan,he didn’t like the weather there,but gradually he _______it.
a.was tired of b.was used to
c.hated d.got used to
提示:強調由不習慣到習慣的過程，故選d。
答案:d
(3)water______ electricity widely all over the world.
a.is used to produce b.is used to producing