去度假

Go on vacation.

呆在家里

Stay at home.

去爬山

Go to the mountains.

去夏令营

Go to summer camp.

到达

Arrive in/at.

决定做某事

Decide to do something.

相当多

Quite a few.

打篮球

Play basketball.

为某人打气

Cheers!

当然

Of course.

长大

Grow up.

与……比赛

Play against.

长时间

For a long time.

明天之后

The day after tomorrow.

别发牢骚

Stop complaining!

你真让我恶心

You make me sick!

你怎么回事

What's wrong with you？

你是个废物/混球

You're a waste/an idiot!

我不想再见到你

I don't want to see you again.

你想怎么样

What do you want？

要想捉大鱼，不能怕水深

If you want to catch a big fish, you must not be afraid of it.

要想摘玫瑰，就得不怕刺

If you want to pick roses, you needn't be afraid of thorns.

这些句子涵盖了日常生活、旅行、学习等多个方面，适合八年级学生晨读，帮助他们提高英语口语和阅读理解能力。建议每天早晨花几分钟时间朗读这些句子，逐渐培养语感。