写出种子的主要生长循环过程补完整。
种子→根→茎→叶→花→果实
写作
成于勤俭，败于奢侈，这是我们的古人很早就提出来的警世箴言。近日***主席针对社会上很多人浪费粮食的现象，发出了“光盘行动”的指示，目的是为了让人们节约粮食、杜绝浪费。节约是一种美德，节约更是一种智慧。请你写一篇以“No Wasting”为题的短文。内容包括：
1你对“光盘行动”的看法。
2在生活中你看到了哪些不节俭的行为。
3列举两件你在生活中所做的有关节俭的事。
4号召大家参与到节俭活动中来。
作文要求：
1不能照抄原文；不得在作文中出现学校真实的名称和学生的真实姓名；
2语句连贯，词数在80个左右。作文的开头和结尾已经给出，不计入总词数。
No Wasting
如图所示，B和C是一组塔轮，即B和C半径不同，但固定在同一转动轴上，其半径之比为RB：RC=3：2，A轮的半径大小与C轮相同，它与B轮紧靠在一起，当A轮绕过其中心的竖直轴转动时，由于摩擦作用，B轮也随之无滑动地转动起来．a、b、c分别为三轮边缘的三个点，则a、b、c三点在运动过程中的（ ）
How often do you use your car? Can you use your car less often? Do you know the following facts in the UK?·About 50% of all car journeys are just for fun.·Over 80% people go to work by car.·25% car journeys are under two miles.·70% car journeys are under five miles.WALKING & CYCLINGInstead of using the car for short journeys, why not walk or ride a bicycle? Walking is the most popular form of exercise—it’s healthy and it can save money. If you work nearby, try walking or cycling instead of driving. Walking your children to school gives them valuable road experience.BUSESBus companies are using new buses: some run on new fuelswhich produce less pollution; some have easier access（通路）for disabled and old people. There are special traffic lanes (行车道)to make bus journeys easier. So do something to help solve the pollution problem----let the bus take you to work and your children to school.TRAINSAll car journeys, long or short, can be hard work. For some trips, it is wiser to take the train. Leave your car at home and walk, cycle or take a bus to and from the station. Train travel is fast, safe and comfortable. Train tickets are not always expensive.
