Describe a helpful person in work or study

You should say:

Who the person is: Jiahao

What kind of person he/she is: generous and smart

How this person help you: helped us for the exam

And explain why you think this person is helpful: he is always ready to help

形容人的性格特征：

1.outstanding 优秀的

Our class is very fortunate to have a outstanding and kind president.

2.considerate 体贴的

The husband is considerate for his wife.

3.supportive 支持（我）的 

I love my father because is always supportive of me.

4.reliable 可信赖的 

You can count on the person who is reliable.

5.sensitive 敏感多疑的

she is sensitive as Lin Daiyu

6.intelligent 机智的

as intelligent as I am 机智如我

Our class is very fortunate to have a brilliant and kind president in the person of Jiahao. He knows that most of us are not so good at math that is why he thought of what he could do to help us for the upcoming test.

解析：

brilliant and kind 杰出又善良 / gentle and kind 绅士又温和

Our teacher told us once that most of us had flunked（不及格）in her class test, so we had to do something to pass the final exam. When she left the room, we were all frustrated, and some were shaking like a leaf（吓得发抖）as their parents might be upset if they fail the test. We were all busy talking and complaining when Jiahao stood in front of the class and banged his hands on the teacher's table. We all turned to him as we were surprised by his action as he was usually gentle and kind.

解析：

flunked（不及格）=failed

shaking like a leaf（吓得发抖）

He then told us his plan since he felt as class president, he was somehow responsible not only for our behavior but also for our academic performance（学业表现）, especially in math. He asked the class to give suggestions as to what we could do to make everyone pass the test. Of course, most did not take this discussion seriously, so they just gave nasty remarks but he just ignored those guys. With all the suggestions, he chose the part where he would tutor us during lunch break and thirty minutes after dismissal time. One of the classmates reminded him that he has music class after school, but he said he could skip the classes（逃课） for the week to lend us a hand. We were so touched and amazed by his kindness that even the bad guys became serious and agreed to the arrangement.

I am thankful to him for being a helpful person because he had to adjust his time to help us.

解析：

skip the classes（逃课）

drop out of school (退学)