Grades encourage students to learn
Concerning all the details mentioned above, there is every reason to believe that grades contribute much to stimulating a student’s passion for learning
Choose a job: one with more vacation time , or one with high paying but less vacation time ?
All in all, the reasons listed above come together to support my viewpoint. From a certain angle, it is rational to believe that a job with more vacation time is better than a job with high salary but long working hours.
如果需要多写一些单词，可以写此句型，All in all总之，概括的说。rational 理性的，有理的
Teachers should be paid according to their students’ performance
As a result, a number of factors ought to be taken into consideration before such an innovative proposal is finally passed and implemented. Bearing in mind the merits as well as the negative possibilities elaborated above, I would render my support to the notion that teachers can be paid on the basis of their students’ performance.