2. Zhou Feng has learned English for many years, but he can ________ understand the English speakers.
A. hardly B. certainly C. always D. almost
3.You _____ ever saw computers years ago, but now they are everywhere.
A. sometimes B. usually C. hardly D. almost
4. At times he helped his mother do some housework.
A. At a time B. Always C. Usually D. Sometimes
5. Tom went to the club sometimes. (对画线部分提问)
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可数名词和不可数名词
(1)可数名词是指能以数目计算、可以分成个体的人或东西，因此它有单复数形式。单数前常用不定冠词，句子谓语也用单数形式。如，There is an orange on the table.
A UFO is not often seen by the public.复数形式在句子中做主语时，句子谓语也应用复数形式。如Boys are fond of playing football.
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七年级英语上册Unit 4教案