题目

Astronauts have already visited the Moon and lived on space stations．They've never been to another planet，but they might visit Mars soon．Astronauts will spend about six months getting to the planet，then about two years on the planet and about six months travelling back to the Earth．They’ll be away from the Earth for about three years，so they'll need much food． It's very expensive to take food into space．It costs about 120 000 dollars to carry something that weighs（重）one kilo（千克）．So an apple on Mars could cost 20000 dollars! Of course，they will need to take m【1】自从他去了美国，我就没有收到他的来信。____________________________________ since he went to America.【2】当她二十多岁的时候，她请人出版了她的第一本小说。She ___________________________ when she was _____________________.【3】你能告诉我在你的一生中谁对你的影响最大吗？Could you tell me ___________________________________?【4】我衷心祝愿你们能够成功地通过这次物理考试。I sincerely hope you can _________________________________.【5】通过艰苦的工作，我相信你会成功的。________________________, I’m sure _________________________.【6】在飞机事故中，138人失去了他们的生命。During the plane accident, ____________________________________.【7】令我吃惊的是，所有的学生都认为作业太多。_____________________, all the students think _____________________________.【8】尽管我们生活在和平中，但是一些孩子仍然生活在为生命安全的担忧中。____________________, some children still _________________________.【9】为了使他改变主意，我想尽一切办法。________________________________________, I tried everything.