题目

如图，在一个长为20m，宽为16m的矩形草地上放着一根长方体木块，已知该木块的较长边和场地宽AD平行，横截面是边长为2m的正方形，一只蚂蚁从点A处爬过木块到达点C处需要走的最短路程是__m． 答案：【答案】 【解析】解答此题要将木块展开，然后根据两点之间线段最短解答．由题意可知，将木块展开，相当于是AB+2个正方形的宽，∴长为20+2×2=24米；宽为16米．于是最短路径为：=8米．故答案为：8．补全对话，每空一词.A: ____ did you do ____ Sunday morning?B: I went ____．A: What did you ____?B: I bought a new jacket.A: What ____ is it?B: It is white. A: Hi,Zhao Jun. How was your Sunday?B: It _____ great.A: Really? What did you do?B: I _____ _____.A: _____ did you play it with?B: I played it with my friends.A: Did you have a good time?B: Yes, we _____.A: Hey, Lucy.B: Hi, Jim.A: _____ _____ your weekend?B: It was great.A: So, what _____ you _____ _____ weekend?B: Well, _____ Saturday morning I _____ soccer, on Saturday afternoon I _____ to the beach, and on _____ _____ I _____ _____ the movies.A: Cool.B: Then, _____ _____ moming, I _____ my room. On Sunday _____, I _____ soccer, and _____ _____ night, I _____ some homework.