3. Which one of the following statements is NOT meant by the writer?
A)Scientists have been trying to break the ice-rich layers of soil on Mars.
B)Scientists have been surprised by how the soil on Mars behaves.
C)Scientists have been trying to fend out if there is life supporting material on Mars.
D)Scientists have been trying to know if water ice will melt.
4. Where are the scientists involved in the research from?
A)They are from America.
B)They are from Canada.
C)They are from both America and Canada.
D)They are from neither America nor Canada.
5. Which of the following do you think is the best description of Phoenixs Surface Stereo Imager Camera， according to your understanding of the passage?
A)It imitates human vision and is able to capture three-dimensional images.
B)It imitates human voice and is able to record slight sounds while taking photos.
C)It takes clear photos that show every detail of the object.
D)It is this particular type of camera that can take wide angle pictures.
答案与题解：
1.C 短文的第一段告诉我们，NASA科学家曾经说过，火星上有广阔的湖泊，流动的河流，以及可能有支撑生命的潮湿环境。但这些只是科学家的假设，不是NASA’S Phoenix Mars Lander的发现，所以只有C是正确选择。
2.C 短文第五段的第三句提供了答案。
3. A 第六段的第三句所述内容说明B是作者想要表达的意思，第七段的最后一句所述内容说明C和D也是作者想要表达的意思。文章里没有A所表述的内容。
4.C 短文的第八和第九段提到了加拿大宇航局的科学家为凤凰号的火星探索提供了激光设备。
5. A短文最后一段的第一句：A full—circle，color panorama of Phoenix’S surroundings also has been completed…告诉我们，使用这种照相机可以拍摄全景照片。panorama：全景，全景摄影。