重点讲解：
1. a total of 总数；总额；合计；
You got 47 points on the written examination and 18 on the oral, making a total of 65.
你笔试得了47分，口试得了18分，总分65分。
2. out of （表示比例）每…中；
Out of a total of 2,602 pupils only 922 passed the test.
所有2,602名学生中，只有922名通过了测试。
3. speak highly of 极为（赞许）；（评价）高的；
In recent years, many countries speak highly of high-efficiency low power consumption mode.
近几年，高效率低能耗的运输方式备受世界各国的青睐。
4. strive to do sth. 努力；奋斗；力争；力求；
Newspaper editors all strive to be first with a story.
报纸编辑都力争率先报道。

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