问题 问答题 简答题

起重机安全使用注意事项?

答案

参考答案:(1)起重机使用时严格执行操作说明书;

(2)起重机械作业时应由专业的起重工统一指挥;

(3)被吊物重量接近额定负载时,与实际重物的出入不得大于3%,起吊大型重物需采用两台或两台以上同型号起重设备时,应按照起重能力额定起重能力的80%分配载荷,且起升速度应相同;

(4)汽车式起重设备,在起重时一般不允许行走,在短杆情况下允许行走,但吊重负载必须小于75%;

(5)起重机在起吊重物时除特殊情况外,起重臂一般不允许伸缩;

(6)起重机严禁斜吊重物。

选择题
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A Good Teacher is a Strict Teacher

    One of the most important parts in the healthy development of a

child is played by education. But the way in which education is

understood has changed completely, as we must not forget that

the severe and unfeeling way of bringing up a child in the past

was primarily based on cruel grounding(基础)and strict

rules that were supposed to create accomplished individuals, the typical gentlemen. Nowdays,

society is much more open-minded and it does not put a great value on being strict, although this

doesn’t mean that opinions regarding this subject do not differ.

On the one hand, there are also people who believe that there has got to be a bound between

teacher and student if any satisfying results are awaited. Luckily for us, more and more teachers are

understanding this fact and are doing their best to get over the strict rules and get in touch with us.

My opinion is that only by having a friendly attitude and accepting other opinions, especially

those of your pupils, you are truly able to do your job at high standards. However, this does not

mean that a teacher shouldn’t be a bit more rough when he feels that things are getting out of hand.

All in all, I must say that a good teacher is the teacher that has the ability to be kind and strict at the

same time, thus achieving to gain his students respect and interest.

小题1:The aim of education in the past was to     .

A.create perfect persons

B.create open-minded persons

C.bring up a child

D.build a cruel grounding小题2:According to the passage, the narrow-minded people think     .

A.a pupil is always interested in what he is learning

B.a pupil himself will improve his studies

C.children should be made to study

D.children don’t like a rough hand小题3:The underlined word “job” in the last paragraph can be replaced by     .

A.controlling

B.teaching

C.learning

D.punishing小题4:The author thinks a good teacher should be    .

A.kind and strict

B.skilled and clever

C.rough and cruel

D.friendly and practical小题5:It can be inferred from the passage that      .

A.society is much more open-minded and being strict is out date

B.as long as the teachers are strict with students, the students will certainly get good marks

C.most people are in favor of strict teachers because they have strict grounding and strict rules

D.if we expect students to develop in a healthy way, the good relationship between teachers and students is important