在线等 快点`快快快~ 1/2+1/3+3/4+2/5+5/7+7/8+9/20+1...

\u540e\u9762\u8fd8\u6709\u7b49\u4e00\u4e0b\u6211\u56fe\u3002 \u62dc\u6258\u4e86\uff0c\u8981\u5feb\u4e00\u70b9\u54e6 \u5728\u7ebf\u7b49\uff0c\u6025 \u5feb\u5feb\u5feb\u5feb\u5feb\u5feb\u5feb\uff01\uff01\uff01

aa

1/3+3/4+2/5+5/7+7/8+9/20+10/21+11/24+19/35
=1/3+3/4+2/5+5/7+7/8+(4/20+5/20)+(3/21+7/21)+ (3/24+8/24)+(5/35+14/35)
=1/3+3/4+2/5+5/7+7/8+1/5+1/4+1/7+1/3+1/8+1/3+2/5+1/7
=1/3X3+(3/4+1/4)+(2/5+1/5+2/5)+(5/7+1/7+1/7)+(7/8+1/8)
=1+1+1+1+1
=5

Peter: Excuse me. Wha animal do you like?Kate: I like penguins.Peter: Do you like pandas?Kate: Yes, I do.What animals do you like?Peter: I like monkeys .Kate: Why do you like them ?Peter: Because they are very clever.Kate: Let’s go to the zoo on Sunday.Peter: OK. Where is the zoo ?Kate: It’s next to a post office on Center Street
.二、按要求转换句型， 一空一词。1.A koala comes from Australia. (变否定句)A koala doesn't come from Australia.2.He likes dolphins very much.(变一般疑问句)Does he like dolphins very much?3.The zoo is across from a big and clean hotel. (对划线部分提问) Where is the zoo?4.I like Tom because he is very friendly. (对划线部分提问)why do you like Tom?5.The shy girl wants to see giraffes. (对划线部分提问)what animal does the shy girl want to see?6.Do you have lots of clever friends? (变肯定句) You have lots of clever friends.7.Pandas are from China. (同义句转换)Pandas come from China.

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