内容正文:
UNIT 4 SPACE EXPLORATION
单 元 核 心 素 养 对应学生用书学案P
主题语境 单元语法 单元写作
人与自然———太空
探索
动词不定式作定语和状语 太空话题的讨论
语
言
知
识
语音知识 句子的重音
单词巧记
limitedꎬ independentꎬ ongoingꎬ mankindꎬ analysisꎬ launchꎬ orbitꎬ giantꎬ leapꎬ desireꎬ
signalꎬ lackꎬ currentꎬ monitorꎬ closing
高频单词
determineꎬ disappointedꎬ desireꎬ independentlyꎬ signalꎬ lackꎬ argueꎬ benefitꎬ
limitedꎬ attach
重点短语
succeed in doing sth. ꎬ lead toꎬ carry onꎬ on boardꎬ in order toꎬ under controlꎬ figure outꎬ
result inꎬ provide for sb. ꎬ run out
常用句式
①the first + n. + to do ②make +宾语 +宾语补足语 ③This is because ... ④whether ...
or ... ⑤动名词作主语 ⑥倍数表达法
单 元 话 题 导 读 对应学生用书学案P
[导语]中国已成为第一个在月球背面成功
着陆航天器的国家ꎮ 嫦娥 4 号探测器的任务是
探索月球永不面对地球的一面ꎮ 它使中国成功
地完成了地球上其他国家所没有完成的事情ꎮ
中国计划将宇航员送上月球并建立自己的空
间站ꎮ
China has become
the first country to
successfully land a
spacecraft on the far side
of the moon. The Change ̄4 probe (探测器) has also
made the first lunar landing since 1972. It has the
task of exploring the side of the moon that never
faces the Earth. The dark side of the moon is older
and has a thicker surface than the visible side. It
takes the moon as long to go around on its own axis
(轴) as it does for one complete orbit around the
Earth.
The Chinese probe landed in a huge crater
(坑) 2ꎬ500 km in diameter and 13 km deep. The
crater is one of the oldest parts of the moon and
our solar system.
Scientists hope to learn more about the
geology (地质情况) of the far side of the moon.
The craft has two cameras on board which will
send images back to earth. It will also attempt to
send signals to distant regions of spaceꎬ something
that cannot happen on earth because of too much
085
radio noise.
Change ̄4 also has instruments on board to
examine minerals as well as a container with seeds
which will try to create a miniature (微型的)
biosphere (生物圈).
Communication with the spacecraft is not
easy. Images and other data must be transmitted
(传送) to a separate satellite be