五、跨学科 求边长 阅读信息，解答问题。
As the following picture shown, Jia, Yi and Bing start to run respectively from Point A, B and C at the same time. After some time, they get to Point B, C and A at the same time. The perimeter（周长）of the triangle is 460 meters. The time they spend fetching a circuit of the triangle(绕三角一周）is 8 minutes, 9 minutes and 12 minutes. What is the length of side BC? ______
As the following picture shown, Jia, Yi and Bing start to run respectively from Point A, B and C at the same time. After some time, they get to Point B, C and A at the same time. The perimeter（周长）of the triangle is 460 meters. The time they spend fetching a circuit of the triangle(绕三角一周）is 8 minutes, 9 minutes and 12 minutes. What is the length of side BC? ______
答案
160 m.
由题意可知，甲的速度为460/8m/min，乙的速度为460/9m/min，丙的速度为460/12m/min，设三者同时到达B、C和A三点的时间为t分钟，得出460/8t + 460/9t + 460/12t = 460，t = 72/23min，所以BC长为460/9t，也就是460/9×72/23 = 160米。
由题意可知，甲的速度为460/8m/min，乙的速度为460/9m/min，丙的速度为460/12m/min，设三者同时到达B、C和A三点的时间为t分钟，得出460/8t + 460/9t + 460/12t = 460，t = 72/23min，所以BC长为460/9t，也就是460/9×72/23 = 160米。
六、根据图片提示，补全对话。
1. —How ______ you find out about Australia, Mike?
—I'll read about it ______ the ______.
2. —What do you want to be in the ______?
—I want to be a ______. ______ ______ people healthy and beautiful.
1. —How ______ you find out about Australia, Mike?
—I'll read about it ______ the ______.
2. —What do you want to be in the ______?
—I want to be a ______. ______ ______ people healthy and beautiful.
答案
1. will, on, Internet
2. future, dancer, Dancing makes
2. future, dancer, Dancing makes
七、新语篇 宣传海报 阅读海报，选择正确的答案。
Shanghai Disneyland
Opening time: 8:30 a. m. —9:30 p. m.
Projects(项目）& Shows:
Float Parade(花车游行）:12:15 p. m., 3:45 p. m.
The Play of Frozen:10:45 a. m. —3:45 p. m.
Light and Fireworks Show:9:00 p. m. —9:20 p. m.
Ticket(门票）:400 yuan for an adult(成人）;
Half price for a child(Height: 1.0 m—1.4 m).
You can meet Mickey Mouse, Minnie Mouse, Daisy Duck, Spider - man and all the Disney Princesses in Disneyland! You are always welcomed here.
（ ）1. Molly is 1.24 m tall. She will go to Shanghai Disneyland with her parents. How much should they pay(付款）for the tickets?
A. 600 yuan. B. 1,000 yuan. C. 1,200 yuan.
（ ）2. What can Molly do in Shanghai Disneyland?
A. Watch the parade. B. Watch fireworks. C. Both A and B.
（ ）3. When can Molly enjoy the light and fireworks show?
A. 3:45 p. m. B. 9:00 p. m. C. 9:40 p. m.
（ ）4. Molly likes plays very much. Which one can she watch in Disneyland?
A. The Play of Snow White. B. The Play of Frozen.
C. The Play of Little Pigs.
（ ）5. Who can't we see in Shanghai Disneyland?
A. Monkey King. B. Spider - man. C. Mickey Mouse.
Shanghai Disneyland
Opening time: 8:30 a. m. —9:30 p. m.
Projects(项目）& Shows:
Float Parade(花车游行）:12:15 p. m., 3:45 p. m.
The Play of Frozen:10:45 a. m. —3:45 p. m.
Light and Fireworks Show:9:00 p. m. —9:20 p. m.
Ticket(门票）:400 yuan for an adult(成人）;
Half price for a child(Height: 1.0 m—1.4 m).
You can meet Mickey Mouse, Minnie Mouse, Daisy Duck, Spider - man and all the Disney Princesses in Disneyland! You are always welcomed here.
（ ）1. Molly is 1.24 m tall. She will go to Shanghai Disneyland with her parents. How much should they pay(付款）for the tickets?
A. 600 yuan. B. 1,000 yuan. C. 1,200 yuan.
（ ）2. What can Molly do in Shanghai Disneyland?
A. Watch the parade. B. Watch fireworks. C. Both A and B.
（ ）3. When can Molly enjoy the light and fireworks show?
A. 3:45 p. m. B. 9:00 p. m. C. 9:40 p. m.
（ ）4. Molly likes plays very much. Which one can she watch in Disneyland?
A. The Play of Snow White. B. The Play of Frozen.
C. The Play of Little Pigs.
（ ）5. Who can't we see in Shanghai Disneyland?
A. Monkey King. B. Spider - man. C. Mickey Mouse.
答案
1~5 B C B B A
