初中必须掌握的词性规则（例题 公式 解析）

词性规则及运用 例题+解析 1. Don't ________ (worry) about her. She can look after herself. 【解析】助动词+动词原形 2. If you don't know what ________ (wear) to a party, the artists here will help you. 【解析】疑问词+to do 3. If it ________ (not be) rainy tomorrow, we will have a sports meeting. 【解析】形容词要用系动词，即be +形容词 (a.) 4. They are looking forward to ________ (enjoy)Beijing Opera in the local theatre. 【解析】介词+动词ing；常考的介词还有about，for，at 5. Tomorrow is my father’s ________ (四十) birthday. I’k like to buy him a present. 【解析】单数名词前用序数词，即序数词+单数名词 6. We are ________ (luck) to live in a good neighbourhood like that . 【解析】be +形容词 7. Jane is always the first ________ (get) to the classroom every day. 【解析】序数词+to do 8. There are two ________ (study) in my flat—one is for me and the other for my sister. 【解析】基数词（>1）+复数名词 9. I think there isn’t _________(something) wrong with your computer. 【解析】否定句，some改any 10. Are they ________(policeman) too? 【解析】are+复数名词 11. He is really _______(help). 【解析】（1）副词（adv.）+形容词(a.)；也可以利用be