题目

小明驾驶汽车以 的速度在平直路面上行驶，小明看到前方路口 处的交通灯正好显示为黄灯它过3秒就会显示红灯。 （1） 若小明决定让汽车以 的加速度加速，希望灯红前冲过路口，则请通过计算判断小明的目的能否达到？ （2） 若小明决定让汽车以 的加速度刹车，则3秒后速度为多少？6秒后位移大小为多少？36、Basketball stars are usually tall．The stars of other sports are sometimes short．Some of the best football players are not very tall． Short people often have better balance than tall people, so they do not fall over（摔倒）very often．In some sports the players must have good balance, for example, table tennis and running． You do not need long legs to run fast! Some of the fastest runners in the world are not very tall．Some are tall and some are short．There is no medicine to make people grow taller or to make people shorter． The tallest woman in the world is Sandy Allen．She is 2．317 meters tall and lives in the United States． The shortest person in the world is Gul Mohammed from India．He is only 57 centimeters （厘米）tall． Today young people in many countries grow taller than their parents．This is because they eat better food today．Good food can help children grow． 根据短文内容，回答下列问题： 1．How many different sports do we talk about in this passage （段落）? What are they?   ____________________________________________________________． 2．Is there any medicine to make people grow taller or to make people shorter?   ____________________________________________________________． 根据短文内容，补全下列句子（每空填一个单词或数字）： 3．The tallest person in the world is ________ meters taller than the shortest one． 4．_______ _______ helps young people today grow taller than their parents． 5．将短文中划线的句子译成汉语：   ___________________________________________________________．