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（1）Improve students’ reading ability．
（2）Let students have the ability to complete the sentences with the infinitives．
情感目标：
After learning, the students like to help the people in need and understand “Help others, happy myself.”五、教学重难点The meaning and usages of the infinitives in the sentences：object、adverbial and complement.六、教学方式(1) Task-Based Teaching (2) Group work
在教学过程中通过情境的创设，让学生通过体验、参与、合作、探究，积极主动的完成学习任务，培养学生的综合语言运用能力并正确运用评价机制。七、教学流程设计学习生词、复习重点词组——完成4a——听读3a——回答问题3b——细读3a——填写3c——导出语法：不定式讲解——语法精练——巩固练习4b——作业布置4c八、教学过程教学环节师生活动设计意图导入
设计(1) Word chain: show the new words and expressions to the students. Ask them to take turns to read one by one.
(2) Review some important phrases that the students learned last class
充分利用学生的激情点，点燃生词关。学生觉得枯燥的生词学习比较容易，又用上节课的重点短语引起兴趣，激活课堂气氛，使他们愿意说。自主
合作
探究(1) Task 1: 4a
Ask the students to fill in the blanks with the phrasal verbs that they reviewed just now. At last ask the students to show their answers.
(2) Task 2: 3b
Show the three questions about Mario’s and Mary’s volunteer activities. Ask the students to look through 3a. quickly to find out the answers. Tell them to work in group. In the end ask them to show the answers in front of the class..
(3) Task 3: 3c
Ask the students to read the article carefully and freely. While reading, the teacher move around the room offering help , correct the pronunciation in time if possible, and answering questions as needed. After that the teacher explain the importance in the passage.
at the age of four 在四岁时
at the same time 同时
If there is nothing difficult, guide the students to finish 3c. When checking the answers, they will find that each blank is filled with the infinitive.
教师把4a整合成一个短文，强化复习环节的重点词组，让学生学以致用。
以听力的形式唱响阅读，提高学生听读综合能力。通过互帮互助互学，加深学生对文章的理解。
经过反复朗读课文，纠正发音，提高阅读速度，让学生通过阅读提炼所需词汇去填空，然后发现共同之处——不定式，为下一环节做铺垫。语法
归纳Grammar focus: the usage of the infinitives
Ask the students to read the sentences
(1) I’d like to help homeless people.
She decided to try out for a volunteer after-school reading program.（做宾语 ）
(2)You could ask hospitals to let you visit the kids and cheer them up.
Mario believes it can help him to get his future dream job.（做宾语不足语）
(3) She volunteers there once a week to help kids learn to read.
I’m making some signs to put up around the school.（做状语）
If the students master the grammar well, the teacher can show the following sentences to guide them to know more.