Unit1 Art Learning About Language 讲义-2022-2023学年高中英语人教版（2019）选择性必修第三册

Unit1 语法 不定式（to do）做表语的用法 1、 形式 1. to do 将来时主动式 2. to be done 将来时被动式 3. to be doing 进行时主动式 4. to be being done 进行时被动式 5. to have done 完成时主动式 6. to have been done 完成时被动式 2、 不定式做表语 主语+系动词+表语（to do)（表状态） 1. 主语常常是表示意向、打算、目的、希望或其具体内容等词汇，如：aim,goal,purpose,ambition,intention(意图),task(任务),plan,dream,decision,duty(责任),hope,wish,idea,way,job等。 2. 用于be动词以及系动词之后。 系动词包括： 五感：look,sound,feel,taste,smell; 五变：become,get,turn,go,grow; 三保持：keep,stay,remain; 一是：be(am,is,are); 一像：seem; 永不忘！！！ 3. 表示想法、约定、义务、命令、可能性等。eg:We are to travel in two days. 4. what引导的主语从句（to do表目的）。 eg:What he wanted to do before going to school was to finish his homework. 5. 疑问词（what,how,why,where等）+to do. eg:The question is how to carry out the plan. 三、不定式做表语相关练习 1. Dr Zhong Nanshan thinks that the doctors’ duty is _to treat (treat) patients and save their lives. 2. What we're trying to do is _to save (save) Earth. 3. He thought that the hardest thing was to control (control) the spread of the disease from person to person. 4. She loved hunting, but all that she wanted to know was how _to operate (operate) her wheelchair in the wild. 5. Our task today is to do (do)some voluntary work in the nursing home. 6. What they wanted was _to be left (leave) alone and think about what to do next. 7. The best way to improve your English is to work (work) hard at it. 8. The biggest aim of education in schools is to inspire (inspire) students to be (be) creative. 9. I think all we have to do first is _to strengthen (strengthen) confidence. 10. Her only aim was _to build_(build) her school football team. 11. The old lady's goal was _to be taken (take) good care of in a nursing home, 12. When you are faced with a dangerous situation, my suggestion is_to keep（keep) calm first. 13. I think the hardest thing might be how to persuade (persuade) him to change (change) his mind. 14. My biggest ambition is to be admitted (admit) as a competitor in the Olympic Games. 15. The old man's next plan was _to set (set) up another h