Charlie studied in a famous college for four years. He studied hard and did well in all his subjects. He hoped to become a good teacher. This year he left the college and began to work in a middle school. He likes his students and is strict(严格的) with them. He does his best to make his classes lively and interesting.

One day he carefully explained a chemical reaction(反应) to the students of Grade 2 in the chemistry lab.

“Be careful, everyone,” he said loudly. “Before I make the experiment,there're twenty five atoms of carbon(碳原子),but after I finish it, there're twenty four atoms of carbon left!”

He stopped to watch the classroom and hoped his students would go on explaining it. But the young men looked at each other and nobody answered him. He had to ask, “What happens? What makes the atom lost?”

The classroom was very quiet and none of the students looked at their teacher.

“Who can tell us where it has gone?”

Suddenly a soft voice came from the back row, “We did not see anybody leave the lab!”

1.Charlie began to work in the middle school because _______.

A.he had been in the school for four years  B.he couldn't do anything except teaching

C.he hoped to become a good teacher    D.he did well in all his subjects

2.Charlie hopes ___ ,so he does his best to make his classes lively and interesting.

A.all his students could understand him   B.his students wouldn't be afraid of him

C.his students carefully watched him making the experiment

D.his students could do well in chemistry

3.That day Charlie wished _______ .

A.his students could learn the chemical reaction

B.his students could find the atom of carbon

C.his students could count(数) the atoms of carbon

D.his students could make the experiment

4.The students couldn't answer Charlie's questions because _______ .

A.none of them had seen the atoms      B.they didn't understand their teacher

C.the chemical reaction was too complicated  D.they all wanted to drop the subject

5.In fact,_______ .

A.Charlie failed that day  B.the student in the back row didn't watch her teacher carefully

C.the student in the back row hadn't learned chemistry before

D.Charlie failed in making the experiment

 

 0  37795  37803  37809  37813  37819  37821  37825  37831  37833  37839  37845  37849  37851  37855  37861  37863  37869  37873  37875  37879  37881  37885  37887  37889  37890  37891  37893  37894  37895  37897  37899  37903  37905  37909  37911  37915  37921  37923  37929  37933  37935  37939  37945  37951  37953  37959  37963  37965  37971  37975  37981  37989  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网