2017高考英語一輪復習Unit 20
they were looking forward to the summer vacation.
他們正盼望著暑假來臨。
(3)look into往里看；調查
the committee is looking into the cause of the accident.
委員會正在調查這次事故的原因。
(4)look over瞭望；越過……看；檢查
a strange man was looking over the wall.
一個陌生人正在向圍墻里面瞭望。
(5)look through瀏覽；審查
i looked through several magazines in the beauty shop.
我在美容院翻閱了幾本雜志。
練：we look on john _______ a good monitor,so we’d like to vote _______ him.
a.for;for b.as;for c.for;against d.as;against
提示:依據短語look on...as排除a、c兩項；vote for sb./sth.的意思是“投票贊成”，vote against的意思是“投票反對”。從上文意思看，應該使用vote for。故選b。
答案:b
3.date back to
講:該短語的義項有“可追溯到……；是……時代開始的”。
例：this town dates back to tang dynasty.
這個小鎮的歷史可以追溯到唐朝。
the hostility between the two nationalities dates back to ancient times.
這兩個民族之間的敵對狀態始于古代。
鏈接•拓展
(1)date from=date back to始于
date back to和date from不可用于被動語態。
(2)bring...up to date 使……趕上時代；使……成為最新之物；給與（某人有關……的）最新消息資料（on,about）
all the equipment has to be brought up to date.
所有裝備必須予以更新。
(3)out of date過時的；舊式的
this encyclopedia has gone out of date.
這部百科全書已過時了。
(4)up to date迄今；直到現在；最新的；現代的
our computer is up to date.
我們的電腦是最新式的。
(5)without date沒有日期的；［美］無期限的
練：this old temple _________ the 12th century.now it is well protected.
a.is dated back to b.is dated from
c.is dated by d.dates back to