问题 问答题 案例分析题

小张刚到生产制造企业工作,其所在的企业为了提高效率,提高物流管理水平,计划实施JIT,让小张负责JIT实施项目的前期准备工作。请帮小张分析一下实施JIT的支持手段是什么?

答案

参考答案:

JIT有三种手段达到其目标:

(1)生产同步化。即工序间不设置仓库,前一工序的加工结束后,使半产品立即转到下一工序去,装配线与机械加工几乎平行进行。在铸造、锻造、冲压等必须成批生产的工序,则通过尽量缩短作业更换时间来尽量缩小生产批量。

(2)生产均衡化。生产均衡化是实现适时适量生产的前提条件。是指总装配线在向前工序领取零部件时应均衡地使用各种零部件,生产各种产品。为此在制定生产计划时就必须全面考虑,然后将其体现在产品生产顺序计划之中。

(3)弹性配置作业人数。根据生产量的变动,弹性地增减各生产线的作业人数,以及尽量用较少的人力完成较多的生产。

阅读理解

Do you feel lonely when your best friend isn’t around? Here’s our advice to you-- and to all kids who feel lonely sometimes.

It’ s hard when a best friend isn’t around—maybe because he or she moved to a different school or a different class. You may feel left out at break or lunchtime. You want to have new friends, but how do you make them? Maybe it seems like everybody else already has his or her friends. But remember, there’s always room for more friends.

Start by looking around your classroom—think about which kids you’d like to play with at break. Look for chances to say hi to them, smile, and be friendly. Offer to share something or express your appreciation (欣赏) to them. Invite someone to play with you or say “Do you want to sit here?” in the lunchroom. When you’re at break, walk over to kids you want to play with, act friendly, and say “Hi, can I play, too?” or just join in.

If you have trouble doing this or if you’re feeling shy, ask your teacher to help you make new friends. Teachers are usually pretty good at matching up friends. The best way to make friends is to be a friend. Be kind, be friendly, share, say nice things, offer to help—and pretty soon, you’ll have one, or two, or even more new friends.

You might still miss that special best friend. But when you see each other, you can share something you didn’t have before he or she left: You can introduce him or her to your new friends!

小题1:Which of the following can explain the expression “feel left out”?

A.Feel homesick.

B.Feel lonely.

C.Leave home alone.

D.Be hungry.小题2:According to the writer, some kids feel lonely at break because they    .

A.have trouble with their studies

B.don’t have their best friends around

C.need their parents to be with them

D.are too young to look after themselves小题3:The underline word “this” in Paragraph 4 means     .

A.sharing your ideas

B.talking in front of many people

C.studying better at school

D.developing new friendship小题4:Some kids need help from teachers to make friends because    .

A.they miss their old friends a lot

B.they have no time to stay with others

C.teachers know who wants a new friend

D.they are shy or not good at making friends

单项选择题