【正文】
進(jìn)入 turn on 打開(kāi) , 發(fā)動(dòng) turn off 關(guān)掉 , 關(guān)閉 turn out to be 結(jié)果是 turn over 移交 拓展 : turn相關(guān)短語(yǔ) Finish the exercises in the workbook. 。 turn around 轉(zhuǎn)身 turn up 調(diào)高 (音量 ) turn down 調(diào)低 。 Dancing affords us pleasure. 跳舞給我們帶來(lái)快樂(lè)。 提供 , 給予 afford to do sth. (常與 can, be able to連用 ) 買得起 。 stop using paper napkins(餐巾紙 )。 use reusable bags instead of plastic bags。付出代價(jià) small things ______ add up and bee big things that _________ improve the environment. Let’s take action now! could would/can 采取行動(dòng) 4c Make a list of things that people can do to help the environment and discuss your list with your partner. use public transportation ( )。 We can’t eat in the classroom. You must finish your homework first. He can’t be at home now. She must know the answer to this question. 4a Fill in the blanks with the correct forms of the verbs in brackets. Joe: _____ you ever ______ (take) part in an environmental project ? Eric: Yes, I have. I ______ (help) with a CleanUp Day last year. It was __________ (consider) the biggest cleanup project this city ____ ever ____ (have). Have taken helped considered had had 參加 Joe: Ho