【正文】
lonely 。alone 。already 。yet 。 We have found many other animals in the mountains. 。 Saturday is named after the pla Saturn. 。Unit 3 Language in use Ⅰ .用方框中所給單詞的適當形式填空 discover,reach,find,amazing,careful reached the top of the mountain at 8:00 yesterday. drive as carefully as possible at any time. amazing news it is to learn the French star will e to Shanghai! have discovered a lot more about our solar system. looked for their pet everywhere,but they didn’t find it. Ⅱ .根據(jù)漢語意思完成句子 ,每空一詞 。 They have just landed on Mars. 。 They have already sent messages back to the earth. 。 No man on the earth has reached other plas in solar system. Ⅲ .根據(jù)句意用所給詞的適當形式填空 one has been ( be ) to Mars yet. far,modern scientists have discovered ( discover ) 100 million such galaxies. ’s time for cl