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课时作业19 Unit 19 Language 一、单元扣点 Ⅰ.单词拼写 1．The contrast of the computer screen is too low, please ________(调整) it. 答案 adjust 2．At last he ________(获得) to the highest office in the country. 答案 attained 3．Plain glass is ________(透明的)． 答案 transparent 4．The twists and turns on the mountain road ________(与……相似) the shape of a huge snake. 答案 resemble 5．I cannot ________(保证) to deliver your goods within a week. 答案 guarantee 6．We were t________ to hear his exciting story. 答案 thrilled 7．After a long a________， she came back to work again. 答案 absence 8．I made some p________ in the supermarket yesterday. 答案 purchases 9．Don't laugh at others, which e________ others. 答案 embarrasses 10．She broke the dish on p________ just to show her anger. 答案 purpose Ⅱ.完成句子 1．人类不同于动物是因为人类有说话和使用工具的能力。 ________ ________ ________ ________ because of their ability to speak and use tools. | 
