2016-2017学年高中英语（外研版）必修1：Unit 5 Section ⅠIntroductionReading and Vocabulary课文训练含解析 1．We can use the power of wind to make ________. 2．The ________ has come into wide use in this area and it proves useful. 3．Have you set the________up yet? 4. If ________， liquids can change into gases. 5. The ________ of the experiment is to find the relationship between the content of soluble solid substance and temperature. 6．Are you happy with the________of the experiment？Did you get the________you expected? 7．We use a ________to weigh substances. 8．The force of ________ pulls things towards the earth’s center. 9．Metals ________ with heat and contract when cooled.