-1- 单元练习测试题 一 用所给单词的适当形式填空 1.We all know there are lots of _(advantage) of living on Mars. So we won t move out of Earth to Mars. 2. Do you know how many planets _(move) around the sun? 3. Do you think _(travel)in space is very exciting? 4. Some other students are worrying about _(write) articles. 5. He said he was afraid of _(leave) home alone at the age of 6. 二 单项选择 ( ）1. When something _me, I often ask my friend for help. A.worry B.worried C.worries D.worrying ( ) 2.I m too busy ,so I have my robot _ the housework. A.do B.does C.to do D.done ( )3.Plants on Mars should be able to provide food, water and oxygen _ humans. A. of B.with C.for D.to ( )4. There is no life on Mars, _? A.is it B.isn t it C.is there D.isn t there ( )5.Don t play with the knife. You _ hurt yourself. A.may B.should C.must D.can 三 根据汉语补全句子 -2- 1It s early. Don t _ _ _ _( 担心迟到 ) for school. 2. People _ _ _ (已去过)the moon. 3.It s raining heavily. We d better _ _ _(呆在 家里) 4. It would be great _ _ _ _ (让机器人 做)all the work for us. 5.The programme _ _ _ _( 以一首歌开始) yesterday.