新課程實踐與探究叢書九年級英語人教版
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一、單項選擇
( )1. The teacher told us ______ attention ______ the lab clean.
A. to pay; to keep B. to pay; to keeping
C. pay; to keeping D. to paying; to keeping
答案：B
解析：tell sb to do sth“告訴某人做某事”，pay attention to doing sth“注意做某事”，to為介詞，后接動名詞keeping，故選B。
( )2. It's very convenient ______ us to buy train tickets now because we can buy them either from the station or on the Internet.
A. to B. of C. by D. for
答案：D
解析：“It's convenient for sb to do sth”表示“對某人來說做某事是方便的”，for符合句型，故選D。
( )3. Good learners often ask ______ because they know knowledge comes from ______.
A. question; question B. questions; questions
C. questions; questioning D. questioning; questioning
答案：C
解析：ask questions“問問題”（名詞復數(shù)），come from questioning“來自提問”（動名詞），故選C。
