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1、 Modern science a lot of convenience for our daily life.（create）
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2、 There is a (possible) that we will have a school trip next week.
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3、 We (cycle) along the street at 7 o' clock yesterday evening.
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4、(definite), we can win the English contest if we keep practicing.
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5、 Don't forget to carry outdoor (equip) when climbing the mountain.
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6、 We will take a(fly) to Qingdao tomorrow morning.
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7、 We are determined (face) all difficulties in the land exploration bravely.
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8、 Only five players (select) for the school basketball team every year.
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9、 It's impossible (make) great progress without hard work.
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10、 Good skills are the key to (survive) in the wild forest.
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11、 Too many (break) satellites float in the universe, and they are a big problem for space travel.
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12、如果天气晴朗，我们就能看到飞机在夜空中缓缓移动。
If the weather is fine, we can watch a plane the night sky slowly.
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13、在没有光污染的黑暗宇宙中，可以看到明亮的星星。
Without any light pollution, bright stars in the dark universe.
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14、从那以后，我们一直是好朋友，总是互相帮助。
, we have been good friends and always help each other.
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15、一直往前走，你很快就能抵达心中的目的地。
Keep moving forward, and you will soon you want.
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16、被选为新班级的班长，是一种荣幸。
It's to be chosen as the monitor of our new class.
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17、她梦想着将来环游世界，勇敢地学习不同的文化。
She traveling around the world and learning different cultures in the future.
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18、我们应该保持自信，勇敢地面对学习中的下一个挑战。
We should keep confident and in our study bravely.
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19、通过太空探索，我们很可能会发现更多宇宙的奥秘。
that we will find more secrets of the universe through space exploration.
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20、 根据要求写出相应的短语。(1)、太空垃圾(p104)(2)、人造物品(3)、太空任务(4)、被选中(p108)(5)、下定决心做某事(6)、以……命名(7)、被授予头衔(8)、进行太空飞行(9)、充当，担任(10)、测试设备(110)