It's normal to be a little tired in grade three. That's what I did. Review suggestion: 1) I suggest you read more examples in the math book and remember the formulas well. Do some basic questions every day, and be sure to strive for more on the basic questions. 2) Chemistry and physics in junior high school are not difficult. You can read the book again and do some topics in combination. 3) If you are from China, recite some good words. English is similar. Finally, relax yourself for ten days, don't be too tired, and relax yourself. You know, in the field exam, a good attitude is very important.