在英语课堂上，夸奖学生时可以使用以下一些表达：

Good job!

Excellent work!

Well done!

Nice work!

Keep it up!

You're on the right track!

Fantastic progress!

That's great!/ Great!

That's it!/ That's right!

That's not bad!/ Not too bad!

That's a good girl/boy!

That's really nice!

One more time and you'll have it!

That's the right way to do it!

That's quite an improvement!

Well, look at you go!

Good remembering!

Good thinking!

Good effort!

You tried really hard on that.

You never gave up, even when it was hard.

You have such a positive attitude.

You have really improved on ______.

What a creative solution to that problem!

Congratulations!

You're doing a good job!

You're doing beautifully!

You are doing exceptionally well!

Your participation in class is exceptional!

Your essay is well-written and persuasive!

31. Alright!

32. Exactly!

33. Right on!

34. Righ.on!

35. You're special!

36. Outstanding!

37. Superb!

38. I'm proud of you!

这些用语可以根据具体情况和学生的表现进行选择和调整，以达到最佳的表扬效果。