2019屆高三英語狀語從句
a. as b. until c. although d. if
【解析】d考查連詞的用法。該題的意思是：這種藥的效果更明顯，如果你在吃藥后喝一些開水的話。if引導條件狀語從句
【專題突破】考生在處理狀語從句試題時要運用如下方法，就能夠很好地突破該語法試題：
1.熟練掌握連接詞的意義，準確把握相同、相近意義的連接詞辨析；2.分析題干，理解語境、語義，善于從語義中尋找連詞,從句式中辨析是哪種類別的狀語從句；3.分析題干，準確辨析狀語從句、定語從句、強調句、名詞性從句等；4.掌握特殊句式，掌握特定連接詞用法
1. it was ________ benazir bhutto, former pakistan prime minister, was leaving the rally(集會) that the suicide bomb happened, ________ the world felt sorry.
a. when; for which b. as; which
c. since; for which d. after; which
2. although he was in poor health, robert succeeded ______ other more famous engineers failed.
a. which b. that c. what d. where
3. the meeting was expected to start at 9 o'clock but the manager didn't turn up ______ twenty minutes later.
a. before b. until c. after d. since
4. ____ difficulties we meet, we can work them out.
a. whatever b. however c. wherever d. whenever
5. what impresses me most is ______ he appears in front of others, he wears a sincere and charming smile.
a.which b.that c.where d that whenever
6.you have to pass a driving test_____ you can get a license
a before b until c when d since