【正文】
e already arrived. 我已經(jīng)到了。4. becausebecause用于引導(dǎo)原因狀語從句,不能與so同時(shí)使用。Unit 7 Signs around us1. must, can作為情態(tài)動(dòng)詞,后面加動(dòng)詞原形,must表示“必須”,而can表示“能夠”。2. 否定警示語的兩種表達(dá)。(1) No doing!No smoking here!(2) Don’t do …!Don’t smoke here!3. else要與不定代詞、疑問代詞、否定代詞或副詞連用,并且必須放在這些詞的后面,表示“除……之外,其他”的意思。She will go to Nanjing tomorrow. I need to find somebody else to help me.4. 動(dòng)詞過去式、過去分詞的不規(guī)則變化Unit 8 Growing healthy, growing strong1. 提出建議 常見的提建議的方式:① Let’s do… Let’s have a piic.② Shall we do…? Shall we have a piic?③ Why not do…? Why not have a piic?④ Why don’t we do…? Why don’t we have a piic?⑤