作者：李国
1. I wasn't here yesterday.
动词是英语句子的核心，动词的时态要根据时间状语或上下文来决定。本句的时间状语是yesterday，be动词应该用其过去式was。be动词的一般过去时态肯定句常用句型是：名词单数+ was... / 名词复数+ were...；其否定形式是直接在was / were后加not；一般疑问句是将was / were提到主语前面，句末用问号。例如：Were you out?
2. I was a bit ill.
句中a bit可用a little替换，a bit和a little都可作副词，修饰形容词、副词及动词，例如：I like noodles a little / a bit. a few则不能修饰形容词和副词，而a few和a little可作形容词修饰名词。a few修饰可数名词，a little修饰不可数名词，例如：We have a few good friends. There is a little water in the bottle. a bit虽然不能直接修饰不可数名词，但a bit of却能修饰不可数名词。例如：He wants a bit of tea.
3. You'd better finish your homework soon, and bring it next Monday.
'd better为had better的缩写形式，意为"最好......"，其后接动词原形，否定形式为'd better not。例如：You'd better not be late again.
bring意为"带来"，指从别处将人或物带到说话地，而take则指"带走"，注意它们的方向。
4. Do you enjoy your work, Uncle?
enjoy意为"喜欢"，其后只能接名词、代词或V-ing形式作宾语，不能接动词不定式。例如：Do you enjoy being a journalist?
5. I called you last night.
实义动词的一般过去时态肯定句型是：主语+实义动词过去式（+宾语）+... 例如：I packed everything last night. 否定形式：主语+ didn't +实义动词原形+ ... 例如：She didn't remember my name. 一般疑问句式：Did +主语+实义动词原形+...？例如：Did you have breakfast?