A. has exploredB. had exploredC. exploredD. has been explored 相关知识点: 试题来源: 解析 A. has explored 本题考察的是现在完成时,表示“第一次做某事”。由于主语是“we”,所以应该使用“have explored”。因此,正确答案是 A. has explored。
The journey to the moon has been the first step toward future exploration(探险) in space. Man will travel farther distance to explore other planets. Such travels will be more challenging and adventurous. Mars has already been explored, but it is not certain whether there is life on the plane...
题目Mankind has always explored space in the hope(1)___ finding out more about the universe.They make(2)___ (vehicle)to carry brave people into space.On 4 October 1957,the Sputnik 1 satellite was launched by the USSR and(3)___ (successful)orbited around Earth.After...
Mars has already been explored,but it is not certain whether there is life on the planetMars已经被探测过,但是行星上是否有生命还不能确定.高分句型二:Venus is so hot with an extremely dense atmosphere and a great pressure that it is almost certain that there is no life there.金星非常热,大气...
explored【小题3】Why is the moon believed to be active? . The moon reflects part of the sunlight. . There are lots of active craters on the moon. . Meteors cash the moon’s surface constantly. . There still could be volcanic eruption on the moon.【小题4】Which of the following is ...
第二节语法选择(每小题1分,共10分)The Moon's near side, the one we all see, has been studied by many robotic and humanmissions. However, our Moon's far side, which is not visible from the Earth, had 21been explored. That changed on January 2, 2019, when the Chinese spacecraft ...
1【题文】The old scientist has made a great contribution the moon. A. in explore B. to explore C. explore D. to exploring 2The old scientist has made a great contribution the moon. A.in exploreB.to exploreC.exploreD.to exploring 3 The old scientist has made a great contribution th...
Which of the following countries has not explored the moon? A. India. B. China. C. America. D. The former Soviet Union. E. 细节理解题。根据最后一段可知对月球探测的国家是美国、前苏联和中国,不包括印度。故选A。 相关知识点: 试题来源: ...
The Moon's near side,the one we all see,has been the target of many robotic and human missions.However,its far side,also (1) called(call)the dark side because it faces away from the Earth and little (2) is known(know)about it,has never been explored.That changed on Jan.2,2019,wh...
aOdyssey president Mark Gordon said, "The majority of the world's ocean floor has not yet been explored. We know more about the surface of the moon than we know about the deepest parts of the oceans. It's exciting to be working at depths like these and to be among the pioneers of ...