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　　Mandy: Numberl.Is it seventy-tw plus twenty-seven ?

　　、1. Computers 2 The computer is one of the greatest inventions in the 20th century3,fasier in calculating 4, as many things 5. not as clever/ smartMore Practice

　　1-3 CCB

　　阅读专题

　　1.A 从第二段第二句可推断出答案。

　　2B 从第三段可推断出答案。

　　3.B 从第四段第二句可推断出容案。

　　4A 根据最后一段并从上下文、常说或构词法可猜出答案

　　5.C 从最后一句可知C选项正确，A和B逃项过于绝对，D项文章没有提及

　　单元评价

　　一、第一节 1-5ACBC 6-10CCBAC

　　第二节A10 B.ld C16 D,NewYork E1,093

　　二、第一节 11-15 DADAB 1620 BDDBA

　　第二节21-25CABCC 2630 BABDD

　　第三节 31-35 ABCBD 360 ADABA

　　三、41-45 ABACD 46-0 BCDDA

　　四、第一节 51-55CBDAA S6-60 CDDBA

　　第二节 61-65 CBDEA

　　五、第一节66.advertisements67.create 68,practical 69.comfortable 70. develop第二节7l.instead of 72.in thel870s 73.Since then 74. keep in toxch with75. What a useful/ helpful

　　第三节

　　My Invention

　　yy invention is a cloud controller. It is easy and convenien to use.

　　It has a sereen, lt can tell us the weather, When the weather is too hot, it can control the cloadsand keep the sun away and make people cool. When there is a drought in an area, it can control thedark clouds to fly there. They bring people rain. When an area suffers from a rainstorm, it cancontrol part of the clouds to leave there. in this way, the weaher will be fine again soan.

　　My invention will make the Earth more beautiful and people will live more comfortably.