帮我翻译几个句子，，谢谢了！

1.至于她的父亲,她不敢肯定他是否会接受她和她的孩子。
As for her father, she can not affirm whether he could accept her and her kid(s).

2.晚睡会有害健康,而早睡早起有益健康。
Sleeping later does harm to our health, while sleeping and getting up earlier is healthful.

3.这个女孩决定敞开心扉,把她看见的都告诉警方。
The girl decided to open her mind to tell all her seen to the police.

4.要是他适合当校长,那么所有的饿学生都可以拉。
If he is fit for the president, almost all the students can be that.

5.过量的运动对生态艰苦利多弊少,所以我们必须控制运动量。
Hypermotility do harm to our (ecology??? ), so we should control our sports.

6.他几次试图加入他们的谈话但都由于胆小放弃拉。
He tried several times to get a word in their talks, but gave up due to his cowardice.

7.就方便快捷而言,火车无法与飞机竞争。
As for convenience and speed, the train can not compete with the plane.

8.就中美文化的对比,会有助于你明白和适应在美国的学习环境
Comparison of cultures of Chinese and American is helpful for your understanding and adapting the learning conditions in U