题目内容：

    Soto gave a report about fitness apps. The fitness apps attract users with training on almost any type of exercise, from cardio (有氧运动) to muscle (肌肉) development. The following are the results.

In Soto’s report on fitness apps, it said that although 37.2 percent of people chose gyms to exercise, 28.9 percent stayed at home on smoggy days. The apps enable users to exercise with guidance whenever and wherever they want, even in the office during a lunch break.

“Most apps focus on footstep counting or running.” Soto’s report noted, “By the end of 2018, fitness sports will see over 100 million people. With their exercise habits changing, the apps need to develop many courses for different age groups and sport choices to keep up with users.”

Fitness apps help save time and space for users, and make it possible to exercise during their very limited (受限制的) free time,” the report said. “ It also provides online communities to meet the users social needs. By providing a platform (平台) to share pictures ad experience, it has made exercise much more fun, and that is why it’s becoming so popular.”

Percentage of fitness app users in different age groups.

1.The text is written to________.

A.develop many courses B.provide a platform

C.give a report D.make exercise fun

2.________is the fitness app that is downloaded most.

A.WeChat B. Codoon

C. Yodorun D. Keep

3.The fitness apps need to develop many courses because________.

A.people like to exercise in the office B.people have very limited free time

C.people’s exercise habits are changing D.people want to take part in different courses

4.How many people between 18 and 24 years old will download fitness apps if there are 1,000 people?

A.About 180. B.About 300. C.About 100. D.About 50.

5.Which of the following is TRUE according to this article?

A.You can exercise with fitness apps at any time.

B.These fitness apps only have exercise on muscle development.

C.People can’t share pictures and experience on fitness apps.

D.28.9 percent of people chose gyms to exercise according to Soto’s report.