小升初be动词和助动词专项（含答案）

be动词与助动词的使用&英语中的缩写 be动词的基本用法： (一)be动词的主要含义: ①是： be+n/adj I am a teacher./You are beautiful./He is in the zoo. ②成为：be+身份/职业 I want to be a singer. (二)be最基本的有三种形式：am, is, are am:只用于第一人称单数I做主语时→ I am a teacher. is:只用于第三人称单数，如：he, she, it, Lucy, my mother:→ He is in the zoo. are：用于第二人称单数及人称的复数做主语时 → You are beautiful. ★口诀： 我用 , 你用 , 用在他她它，单数名词用 ，复数全用 ，不可数名词用 。 例题一： I _____ a boy. 2. The girl _____ Jack's sister. 3. The dog _____ tall and fat. You a student. 5. They _____ on the farm. 6. It _____ an umbrella. 7. Bob and Tom _____ doctors. 8. My parents _____ very busy every day. 9. Some water _____ in the glass. 10. Your hair _____ long. 11. Ten and two _____ twelve. 缩写： I am = I’m we are=we’re you are=[ ] he is=he’s she is=[ ] it is =[ ] 二、含有be动词的肯定句和否定句 I am from London. I am not from London. He is a teacher. He is not a teacher. He isn't a teacher. Her eyes are small. Her eyes are not small. Her eyes aren’t small. She is in the dining room. _____. _____. 缩写： am not _____ are not _____ is not = _____ ★总结：在有be动词的句子中，改否定句时只要在be动词_____加上_____。 例题三、有be动词的一般疑问句 肯定句： 一般疑问句： 肯定回答： 否定回答： I am a student. Are you a student Yes, I am. No, I am not. They are Chinese. Are they Chinese Yes, _____. No, _____. The cat is fat . _____ Yes, _____. No, _____. ★总结：在有be动词的句子中，改一般疑问句时只要将be动词 _____，我变 _____. 例题四、 Be动词在一般过去时中的变化：am--was is --was are--were ⑴was not=wasn’t were not=weren’t 带有was或were的句子，其否定、疑问的变化和is, am, are一样，即否定句在was或were后加not，一般疑问句把was或were调到句首。 练一练： 1.I at school just now. 2. He at the camp last week. 3. We students two years ago. 4. They on the farm a short time ago. 5. Yang Ling eleven years old last year. 6.Some beef on the plate just now. 7. The phone on the sofa yesterday evening. 8. Two bowls of rice on the table a moment ago. 例题五、Be动词在一般将来时中的变化：will be表示对将来的事实或将来的预测；其否定形式为won’t be。 例句：He is eight years old now and he will be nine next year. 他现在八岁，明年将九岁啦。 It will be rainy tomorrow. 明天将会是下雨天。 练一练： 1.He there at ten tomorrow morning. 2.In three years, he a doctor. 3.I free next week. 4.I a successful man in the future. 5.It hot in summer, but it cool in autumn. 6. Today, computers large. But in the future, computers very small. 例题六、there be 句型中be动词的用法 There be句型主要用以表达“某处（某时）有某人（某物）”。其中there是引导词，没有词义；主语是be后面的名词， be是谓语动词。 一、There be句型的四大时态： 一般现在时： There is/are+主语+地点状语（介词短语） 例： in front of the school . 学校前面有一辆旧自行车。 in the basket. 篮子里有许多梨。 一般过去时： There was/were+主语+地点状语（介词短语） 例： in the bowl just now. 刚刚在碗里有一个鸡蛋。 behind the house two years ag ... ...