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hrasal verbs has two or three words, such as clean up, cheer up, give out. Here is an example on how to use clean up. Look at the title of Unit 8. I’ll help clean up the city parks. Repeat it twice, please.Ask the students to read the title twice.Then go on saying, “clean up means make a place clean and tidy, put things there in order”. Let’s see another example, We should always clean up after a piic.Who can explain this sentence in your own, words?Ask one student to explain the sentence.He or she may say like this. This sentences means we should burn wastepaper, collect litter and empty bottles, etc.Then ask the class. Who can make more sentenceswith clean up?Ask several students to share their sentences to the class.Do the same with the other phrasal verbs.Read the instructions to the students.Please look at the picture now. We can see a bulletin board and two children in it. What is the bulletin board about? Help students to answer: Volunteer Today!Then continue saying, “Who can tell me the meaning of volunteer?”Ask one student to try to explain it. Then tell them the meaning of it. Volunteer means a person who offers to do something unpleasant or dangerous. It means a person who offers to help the others sometimes. Volunteer is used as a verb in this lesson.Draw the students’ attention to the three posters on the board.We can see one sentence in each poster.And we can see some people in each poster, too. What are the volunteers doing in each poster? Please work in pairs and talk about the posters.Give the students a few minutes to talk about what they will say. Let them talk about all the three items. Move around and help the pairs as needed.Then read the sentences in the posters to the class. Ask the pairs of students to explain what the sentence means in their own words. Or tell what the volunteers are doing in the posters.For example, for the first poster, a pair might say:It means there is trash in the park. There are papers on the ground. We can help clean up the park by picking up papers and trash. We can make the park clean.After the students have finished all the items, ask the students to add some other ways they can help people. Get them to write the ways down in the box below the picture.At last, ask some students to share their ideas with the class. Write any new words or phrases on the board and explain these words to the class, if necessary. Step Ⅲ 1bCall the students’ attention to the two lists in the box in Activity lb. Ask some stu