loadingUnit 1 What’s the matter
单元语法小专题(Grammar Focus)
语法精讲
情态动词should的用法
should 作情态动词，有实际的词义，但它不可单独作谓语，须与动词原形连用，没有人称和数的变化。其否定形式在其后加not，可缩写为shouldn't；变为一般疑问句时，should 提到主语之前。它的用法如下：
1．表示委婉地提出意见或建议，一般意为“应该；应当”。eg： You should eat lots of healthy food.你应该多吃些健康的食品。 You should help each other.你们应该互相帮助。 2．表示义务、责任，也意为“应该；应当”。eg： You should study hard.你应当努力学习。 He should pay for the books.他应当付书钱。 3．表示命令和要求，语气比较强烈。eg：
We should respect our teachers and parents.我们应该尊敬老师和父母。 You shouldn't be so careless.你不应该这么粗心。 4．表示预测和可能性。eg：
He should be a teacher.他可能是一位老师。
They should be in the classroom.他们应该在教室里。
5．表示说话人的感情，如惊奇、愤怒、失望等，多见于以why，who，how，what等开头的特殊疑问句中。eg： Why should I invite her？为什么我要邀请她？
How should I know？我怎么会知道？语法精练
Ⅰ.用括号内所给单词的适当形式填空。 1．You should lie(lie) down and rest. 2．He shouldn't eat(eat) too much meat. 3．Should I take(take) my temperature?
4．He cut his foot.What should he do(does)?
5．The old man had problems breathing.What should we do to__help(help) him? Ⅱ.用should或shouldn't 填空。
6．He's ill.He should take some medicine.
7．You're stressed out.You should listen to some music.
8．She has a sore throat.She shouldn't eat too much hot food. 9．They are tired.They should stop working.
10．You have a toothache.You should see a dentist. Ⅲ.按要求完成下列句子，每空一词。
11．He should drink hot tea with honey.(改为否定句) He shouldn't drink hot tea with honey.
12．She should put some medicine on the cut.(改为一般疑问句) Should she put any medicine on the cut?
13．You should see__a__dentist．(对画线部分提问) What should I do?
14．Sam should meet his friend at__the__train__station．(对画线部分提问) Where should Sam meet his friend?
15．You should get to the park at__8：00__a．m．(对画线部分提问) When should we get to the park?
Ⅳ.根据汉语意思完成句子，每空一词。 16．你应该吃些蔬菜。
You should eat some vegetables. 17．饭后你不应该躺在床上。
You should not lie in bed after meals. 18．学生们上学不应该迟到。
The students shouldn't be late for school. 19．他可能在九点前到达那儿。
He should arrive there before nine o'clock. 20．他们现在可能在上海了。 They should be in Shanghai now.