this[ðɪs]和thanks[θæŋks]发音不同:

[ð]，[θ]This is the one I want.

这就是我要的那个。

This suggestion dumbfounded Joe.

这个建议使乔伊惊呆了。

This knife needs sharpening.

这把刀需要磨了。

This suitcase doesn't lock.

这手提箱锁不上。Thanks for your help when I was in trouble.

谢谢你在我困难的时候帮助我。

Thanks. I really enjoyed it.

谢谢，我真的很开心。

Thanks. That'll be grand!

谢谢。那太棒了！

I don't want anything else, thanks.

我不要别的东西了，谢谢。