Unit 4 Life on Mars单元词汇+短语+句子专项训练（含答案）牛津译林版九年级英语下册

中小学教育资源及组卷应用平台 译林版九年级下册Unit4 Life on Mars词汇+短语+句子专项训练 满分100分 一、词汇辨析（从括号内选择正确单词填空，共10分） Humans need enough oxygen to _____ (breathe, breath) on Mars. The _____ (science, scientific) research on Mars has made great progress. We should take _____ (protect, protective) measures when exploring space. The _____ (weigh, weight) of objects is different on Mars and Earth. Mars is a _____ (planet, star) in the solar system, not a star. Astronauts need special _____ (equip, equipment) to live on Mars. The _____ (possible, possibility) of living on Mars is being studied. He has a strong _____ (curious, curiosity) about the universe. The _____ (environment, environmental) on Mars is very harsh. We need to _____ (develop, development) new technologies for space travel. 二、用括号里单词的正确形式完成句子（共15分） Scientists _____ (explore) Mars for many years to find signs of life. If we move to Mars, we _____ (have) to get used to low gravity. The spacecraft _____ (send) to Mars last month will send back data soon. It's difficult _____ (imagine) life without water and air on Mars. Mars _____ (call) the "Red Planet" because of its colour. We _____ (not know) if there was ever life on Mars until now. Astronauts _____ (train) hard for the Mars mission these days. The new technology _____ (help) us learn more about Mars in the future. He dreams of _____ (travel) to Mars when he grows up. The _____ (long) of a day on Mars is about 24.6 hours. People _____ (may) live on Mars in the next 100 years. She is interested in _____ (study) the geography of Mars. The temperature on Mars _____ (change) greatly between day and night. We should try our best _____ (protect) the environment of Mars if we move there. Many countries _____ (work) together on Mars exploration projects now. 三、用括号里中文提示及句意完成句子（共20分） Mars is _____ (离……更远) from the Sun than Earth. Astronauts must wear _____ (太空服) to walk on Mars. The _____ (重力) on Mars is only about one-third of that on Earth. We need to build _____ (栖息地) before moving to Mars. Scientists are looking for _____ (液态水) on Mars. It's _____ (不可能的) for humans to live on Mars without special equipment. The _____ (大气层) of Mars is much thinner than Earth's. We should _____ (为……做准备) the Mars mission carefully. The _____ (表面) of Mars is covered with red dust. Spacecraft can _____ (发送信息) back to Earth from Mars. Humans have _____ (发送探测器) to Mars many times. The _____ (距离) between Earth and Mars changes constantly. Living on Mars would be a _____ (巨大的挑战) for humans. We need to _____ (研发) new energy sources for Mars bases. The _____ (气候) on Mars is very cold and dry. Astronauts need to _____ (适应) the new environment on Mars. There are many _____ (陨石坑) on the surface of Mars. We should _____ (了解) more about Mars before exploring it. The _____ (氧气水平) on Mars is too low for humans to breathe. Scientists are _____ ( ... ...