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Valerie studies at a university. She also takes a full-time job so that she can pay for her school fees and her living cost. So Valerie spends most of the day at the office and then goes to class three days a week.

Valerie does not do any physical exercise. She is so busy that she thinks she does not have time for any physical activity. Sadly, she rarely eats home-made meals. She usually just eats chips or hamburgers because she thinks that she does not have time to make a healthy dinner. And she will study late at night every day and wake up tired.

Finally, Valerie keeps getting sick. This makes her miss work and class. Her grades start to go down because of her illness.

During her mid-year break, Valerie decides to make some big changes. First, she learns how to make some easy, healthy dishes. And she finds that she saves a lot of money, and the food tastes much better too! Her office is not really so far from her university, so after work she tries walking there. In fact, she finds that she can get to class by walking. And she is so much happier when she arrives! She goes to bed early and studies at weekends.

Valerie keeps her healthy habits. She is sleeping and eating better now. She can finally concentrate and needs less time to study. It is a huge improvement. Valerie saves money on food and transportation. She has much more energy. She feels less stressed, and her grades are better.

1.What does Valerie do with the salary?

A She pays her school fees and living cost.

B She pays her house rent and living cost.

C She pays her transport fees and food.

D She pays her health care and medical fees.

解析：选A。细节理解题。根据第一段第二句She also takes a full-time job so that she can pay for her school fees and her living cost. 可知她把钱用来支付学费和生活费，故选A。

2.Why doesn’t Valerie have home-made meals?

A Because she doesn’t like cooking.

B Because she haven’t learnt how to cook.

C Because she is busy working and studying.

D Because she loves chips and hamburgers.

解析：选C。细节理解题。根据第二段第二句 She is so busy that she thinks she does not have time for any physical activity.可知她认为没有时间运动是因为太忙了（忙于工作和学习），后面给出的一系列习惯（不做饭、学习到很晚）都是因为太忙了，故选C。

3.What causes Valerie’s grades to go down?

A Her illness.

B Her work.

C Her study.

D Lack of exercise.

解析：选A。细节理解题。根据第三段最后一句 Her grades start to go down because of her illness. 可知她学习成绩下降是因为生病引起的，故选A。

4.What can we learn from the last paragraph?

A Valerie benefits from the changes.

B Changes are always good for you.

C Home-made dinner makes you healthier.

D Walking rather than taking a bus saves more money.

解析：选A。推理判断题。根据最后一段最后三句Valerie saves money on food and transportation. She has much more energy. She feels less stressed, and her grades are better. 可知Valerie可以从节约钱、更有活力、压力变小和成绩变好各方面受益，故选A。