题目内容：

    Thanks to technology, ride-hailing(打车) is as easy as opening an app on your phone. According to Didi, China’s top ride-hailing app, 81.3 percent of passengers preferred using an online service last year. But just like many other modern high-tech developments, convenience comes with concerns.

Didi Chuxing announced a trial re-launch of its carpool(拼车) service, Didi Hitch(滴滴顺风车), in seven cities including Harbin, Taiyuan and Beijing from Nov 20. More than a year ago, Didi suspended the service following the murders of two separate female passengers in May and August, respectively.

The re-launch comes with a range of new safety features. One of the new measures proved controversial. It carried out an 8 pm curfew(宵禁) on women, but allowed men to enjoy the service till 11 pm.

Many users complained on social media that the policy was sexist. According to CNN, the topic “#Women Can’tTakeDidiAfter8PM#” was trending on weibo, with one post calling it “negative marketing and gender- biased(性别歧视的)”. It had gained more than70,000 likes as of Nov 11.

After the strong public reaction, Didi Chuxing changed its decision. Both men and women will be able to use Didi Hitch between 5 am and 8 pm.

According to CNN, Didi Hitch had logged more than a billion total rides before its suspension, but it remains to be seen if the company can win back users’ trust.

Didi is not the only ride-sharing app to arouse public safety concerns, nor is it the only one to attempt special protections for women. The globally popular car-hailing services Uber and Lyft now require strict background checks and emergency SMS services that will automatically send a car’s description, license number, and current location to police, CBS news reported.

According to CNBC, one Boston-based ride-hailing service only hires women to drive and will only accept women or children under 13 as passengers. Despite all the safety features, riders should check their drivers’ number plates, ensure they are being taken on the correct route, and inform friends of travel plans.

1.What are the first six paragraphs mainly about?

A.Safety tips for using Didi Hitch. B.Public safety concerns over Didi Hitch.

C.The advantages of Didi Hitch’s new services. D.The recent developments of Didi Hitch.

2.The underlined word “suspended” in Paragraph 2 probably means ________.

A.improved on something B.worried about something

C.stopped something for a time D.took the responsibility for something

3.Why did Didi Chuxing change its Hitch curfews?

A.Because of its recent online risk analysis.

B.Because of the public’s negative reaction.

C.For the convenience of different users.

D.For the sake of safety problems of women.

4.The passage is probably taken from________.

A.an advertisement B.a textbook

C.a newspaper D.a public speech