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1、既然没有人看到外星人，那位科学家拒绝相信他。
no one saw the aliens, the scientist him.
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2、 【学以致用】根据句意从上面选择适当的短语并用其正确形式填空，补全句子。
because of；be sure；wake up;can't stop;look like(1)、We have to change the plan the sudden exam.(2)、We that reading English every morning can improve our listening skills.(3)、I late this morning, so I hurried to school.(4)、They laughing when they heard the joke.(5)、My deskmate a famous singer. -
3、 根据要求写出相应的短语。(1)、醒来(2)、朝外看(3)、第二天早上(4)、向某人提及某事(5)、肯定；确信(6)、因为(7)、看起来像(8)、拒绝做某事(9)、张开翅膀(10)、无法控制自己
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4、 When the weather gets cold, we should ____ the temperature of the air conditioner in the room.A、raise B、check C、adjust D、reduce
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5、 Before operating the machine, please follow the ____ step by step to keep safe.A、instructions B、conversations C、competitions D、celebrations
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6、 Our school bought a new ____ for the science lab to help us do better experiments.A、message B、equipment C、method D、magazine
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7、 We all ____ him before the English speech contest because he didn't practice it enough.A、care about B、learn about C、are worried about D、know about
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8、 Some scientists ____ to explore the deep sea, as it is a mysterious and dangerous place.A、take risks B、take place C、take care D、take away
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9、 My schoolbag is different yours, but my pencil case is the same as yours.
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10、 I picked up your book mistake because it looks the same as mine.
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11、 Being an astronaut and walking in space a spacesuit is my biggest dream.
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12、 The school library is a treasure house of knowledge.
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13、 Being able to look at the Earth space is a dream for many people.
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14、和同学们一起完成科学实验是一次奇妙的经历。(It was an amazing experience to…)
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15、成为一名志愿者，让我们的生活更有意义。(Being…+谓语单数…)
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16、宇航员进行太空行走时,经不起犯任何错误。(afford to do sth.)
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17、一场大雨阻止了学生们按时到校。(stop... from...)
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18、结果我们队赢了这场篮球赛。(It turned out that…)
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19、 When the light turned green, all the cars (speed) up at once.
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20、 We (agree) at first, but finally reached an agreement.