【正文】
Unit 2 We have not found life on any other plas yet. Ⅰ .根據(jù)首字母及漢語提示補(bǔ)全單詞 came upon a group ( 群 ) of children playing in the street yesterday. 2. None ( 沒有人 ) of us has been to we all want to visit there. can use solar ( 太陽的 ) energy to do many things today. found it impossible ( 不可能的 ) to make Ann change her mind. learn a language in order to municate ( 交流 ) with others. Ⅱ .根據(jù)句意用所給詞的適當(dāng)形式填空 1.— Have you written ( write ) to your uncle yet? —Yes,I have. ’s impossible ( possible ) for Tim to finish so much work in such a short time. ,the sky is called ( call ) “the vault of heaven( 蒼穹 )” in poems. ’s not easy for the old lady to clean ( clean ) the window alone. ran into his room and turned on the radio to listen ( listen ) to his favourite song. Ⅲ .用方框中所給單詞的適當(dāng)形