2015衡阳八中高三上学期第二次月考英语试题及答案(6)

75. damaging ecosystems /damage to ecosystem         76. Advantages  77. enrich  
78. Changing nitrogen        79. Reducing water runoff        80. twice
81. When she was three.
82. In Burbank high school. 
83. They are not as strong and powerful as boys.
84. Nebraska and Indiana.

May I have your attention, please?
My topic today is about copying others’ homework.
As we know, some students copy others’ homework. On one hand, we students have to do masses of homework both at home and at school . Sometimes we do have some problems, too hard to work out. On the other hand, lazy and uninterested in their lesson, some students copy others’ homework not only to finish the assignments but also to please their teachers.
In a word, copying others’ homework is a bad habit. For one thing, it’s against the school rules. Being students, we should be honest and work hard. If we have difficulties, we can turn to teachers and classmates for help. For another, copying others’ homework too often, we will lose the ability that can help us to think.
Personally, it’s for our own sake to study. We should try our best to gain knowledge. Let’s take action to prevent such bad behavior from spreading.
Thank you for your attention.