Unit1 Life Choices Lesson 1 Lifestyles Grammar 不定式课件-2024-2025学年高中英语北师大版（2019）必修第一册

Lesson1 Grammar 不定式 1. According to Joe, what is important? It is important to meet friends in person from time to time, not just on social media. 2. What does he need to do? I need to drag myself away from the online world sometimes. Do you remember? subject 主语 object 宾语 找出下列句子中的不定式，并指出在句子中充当的成分 My mum keeps telling me to go out with my school friends instead. I do my best to achieve it. She is the first person to join the volunteering club in her class. My target is to prepare myself for my degree in biology at university. complement 补语 adverbial 状语 attribute 定语 predicative 表语 subject (主语) object (宾语) predicative (表语) attribute (定语) adverbial (状语) complement (补语) Find more sentences in the text with “to do” structure and identify their functions! 不定式的功能 1. I tend to set a goal for every subject at the beginning of this term. 2. My aim is to do well in every subject this term. 3. I have a top 10 reading list and I try to keep it updated. 4. It always makes me excited to work hard and achieve a team goal together. 5. To achieve all I want, I must use my time well. 6. I try to use any possible time to revise the things I have learnt during the day. 7. It usually takes me 20 minutes to get home by bus. 8. I often use the time to review English words. 1. 不定式作主语（常见于固定句式） (1). It + be + n. to do sth. It is my dream to meet my idol. (2). It takes sb. some time + to do sth. It took me 2 hours to finish homework yesterday. (3). It + be + adj. + for/of sb. + to do sth. It is important to meet friends for me in person from time to time, not just on social media. 2. 不定式作表语(系动词之后） Her job is to clean the hall. Her aim is to do well in every subject. 3. 不定式作宾语 （1）. 某些动词后用不定式作宾语（afford, agree, decide, choose, hope, plan, refuse, ask, want, like…) e.g. agree to do sth. He offered to help me. He decided to buy a new car. （2）. 动词后+疑问词+不定式 Please show us how to do that. Have you ever decided what to wear to the interview? 补充：不定式作宾语常见动词搭配 hope to do sth 希望去做某事 wish to do sth希望去做某事 expect to do sth 希望去做某事 agree to do sth答应去做某事 promise to do sth 答应去做某事 demand to do sth要求去做某事 ask to do sth 要求去做某事 refuse to do sth拒绝去做某事 manage to do sth 设法去做某事 learn to do sth学会做某事 decide to do sth 决定做某事 pretend to do sth假装去做某事 choose to do sth 选择做某事 intend to do sth打算做某事 offer to do sth 提出去做某事 plan to do sth计划去做某事 apply e to do sth 申请去做某事 fail to do sth做某事失败 afford to do sth 负担去做某事 prepare to do sth准备去做某事 happen to do sth 碰巧去做某事 I find it hard to learn a foreign language. find /think/feel + it + 形容词 +to do sth. 我发现再读一读这本书是有必要的。 I _____________________ the book again. find it necessary to read 补充：不定式作宾语（形式宾语） 4. 不定式作宾补 动词+宾语+不定式作宾补： ask; allow; advise; expect; invite; encourage; teach; tell; want consider, require… The teacher asked me to finish homework on time. I want my dad to buy me a new bike. 5. 不定式作定语 1）I have a lot of things to do.(不定式作定语和被修饰的名词具有“动宾关系”，即被修饰的名词是不定式的动作的承受者) 2）被序数词、最高级或no, all, only等修饰的名词后一般用不定式作宾语 He was the last one ________________(leave) school yesterday. 3）部分抽象名词后 e.g. ability, chance, attempt, decision, warning, promise等 他们放弃实验(experiment) 的决定让我们很吃惊。 Their ___________________________surprised us a lot. to leave decision to give up the experiment I wake up at six o’clock every morning. It _______ (take) me less than 15 minutes ____________ (wash), get changed, have breakfast and leave home. I’m always the first person _______ (get) to my class. The mornings are always very busy and the afternoons are even busier! By around five o’clock, I usually _______ (find) time _______ (do) my paperwork and preview the lessons. You may think that it _______ (be) boring ________ (do) the same thing every day, but I like being busy. takes to wash to get find to do is to do Practice（P11. 10） Describe your school life by using “to do” structure. It is exciting/challenging to … My English teacher asks/requires me to … I cherish the chance/time to … My aim/expectation is to … To achieve my goal, I decide/plan to … Writing – use infinitives! $$