Please help me correct the following six sentences, if there are any errors, or not natural usage, your help will be much appreciated.?

1. She is a more patient teacher than anyone. (Just change the word order)
2. As a teacher, no one is more patient than she is. (Adding the 'is' makes it sound more natural)
3. It is difficult for English speakers to learn Chinese. (That's perfect)
4. The ground is sheltered by the trees. (The word floor usually means inside a house or building. 'Cover' usually means completely coating something, and as trees go upwards, they never really cover the ground. The ground could be covered in grass or flowers.)
5. The most beautiful place in the world, that everyone should visit at some time in their life. (That sounds more natural. 'Spot' is often used to mean a zit/pimple.)
6. The 100 most beautiful scenic locations that everyone should visit in their life. (Numbers over ten are normally written in figures, and this sounds more natural)

1. As a teacher she is more patient than any other teacher I know.
2. No one is more patient as a teacher than she is.
3. ok
4. The ground is covered with trees. (As a direct change) But more likely an native speaker would say something like: "The whole area is covered with trees", or maybe: "There is a thick wood (small forest) over there".

No.5 is not a classical full sentence as written - there is no active verb. Try: "That place is the most beautiful place in the whole world. Everybody should try to see it at some stage in their life." (Note that "within" is totally wrong there).

6 The hundred most beautiful pieces of scenery that everybody should visit before they die. (I disagree about the "100/hundred" argument in that case.)

Note that I am a native speaker of British English, 71 years old, middle-class, living in southern England. People of other backgrounds will doubtless have different opinions.

1.She is a teacher who is more patient than anyone else.