Everybody wants to be healthy．You know food is very important．There is much healthy food．You can have more bananas，apples，oranges and tomatoes because fruit and vegetables are good for you．But don’t eat too much chocolate．It’s not healthy food．Healthy food can make you grow and make you strong and happy．Remember there is a saying，“An apple a day keeps a doctor away．”Sports can also keep you healthy．Get up early and do some sports every day．Don’t be lazy(懒)!You will be healthy and happy．

小题1:．Which of these following sentences is true?___________.

A．Everybody is healthy．

B．We don’t want to be healthy．

C．Food is important．

D．There isn’t much healthy food.小题2:Why is healthy food good for you?_________.

A．It makes you beautiful．

B．It makes you young．

C．It makes you tall．

D．It makes you grow and make you strong and happy．小题3:“An apple a day keeps a doctor away”means(意思是)：________   

A．The doctor goes away when he sees an apple．

B．You eat an apple every day and you can be healthy．

C．The doctor runs away when you give him an apple．

D．You want to be a doctor．小题4:．What’s the best title(标题)for this passage(短文)?_________.

A．Fruit and vegetables．

B．Healthy food．

C．Healthy food and sports．

D．Sports．

甲、乙两人同向而行，甲骑车速度为18km/h，他先走2h后，乙出发，经过3h后，乙走的路程是甲走路程的一半，求乙的速度。