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Read the article and select the best answer. Article: Many students are planning field trips as spring draws near. Fourteen-year-old Zhou Liqun is busy digging holes along rivers. The girl and her "One Piece of Paper Team" are planting trees to improve the environment. They collect waste paper to sell for trees and have set up websites to spread the message of connections between humans and nature. "We want to make environmental protection everyone's habit," says the girl. "Even a piece of paper matters." Eager to join Zhou in such meaningful work? Now you are offered advice on what to do. Last month, measures for public participation in environmental protection were published by the State Environmental protection Administration . The special measures are expected to change the light rain of the past into a storm of environmental protection. Last year's Songhua River pollution acted as an alarm to Chinese people. According to SEPA officials, environmental pollution has become serious, and will continue so for the next 15 years. A recent survey showed that though most Chinese people care about environmental problems, they don't put their concerns into practice. One reason is that they don't know how. So the newly published measures present information about how to report environmental problems and how to join in the battle against pollution. Actually there is much you can do in daily life. Buy less to reduce waste. Don't throw away things before you have made the most use of them. Use electricity, water and gas only when necessary. Switch them off when you don't need them. Everyone can participate in making the planet suitable for future generations. Why not join in and make our world more fantastic? Question: What is the best title of the passage? Options: A: Songhua River is in Danger B: Students Improve Environment C: Measures to Reduce Waste D: Pollution Makes Our World Worse
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B

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Read the article and select the best answer. Article: Tens of thousands of smartphone applications are running ads from the overwhelming advertising networks that change smartphone settings and copy people's contact information without permission. Aggressive ad networks can disguise ads as text message notifications , and sometimes change browser settings and bookmarks. Often, the ads will upload your contacts list to the ad network's servers--- information that the ad network can then sell to marketers. Sounds scary? It's not a giant problem yet, but it's a growing one. As many as 5% of free mobile apps use an "aggressive" ad network to make money, according to Lookout, a San Francisco-based mobile security company. PhoneLiving was one of the most popular app developers to use these kinds of ad networks; their dozens of talking animal apps have been downloaded several million times. Later, PhoneLiving says it has mended its ways. The company admittedusing _ techniques to make money from its apps, but said it dropped those methods at the start of July because of bad reviews and declining downloads. The most popular type of apps that use aggressive ad networks are "Personalisation" apps, which include wallpapers. Comic and entertainment apps are also among the most likely to have rogue ad networks running behind the scenes. Like aggressive pop-ups on PCs, the bad software isn't easy to get rid of. Though the damage can typically be removed by deleting the app, it can be hard to tell which app is causing the problems. When developers create free mobile apps, they usually make money through ads displayed within the app. App makers don't usually tell people which ad network they are using, which makes it hard to avoid the known offenders. The best defense is to read reviews and avoid downloading apps that have attracted many complaints. Question: What is an example of bad behavior by the annoying mobile ads? Options: A: They change browser settings and bookmarks. B: They change people's calendar settings. C: They send scam text messages occasionally. D: They download free versions of games.
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A

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Read the article and select the best answer. Article: Nobody wants to be called a helicopter parent,who manages to be responsible for whatever a child does, however small a matter is--but parents want to protect their kids.At least no playing with sticks means no risk of lost eyes. Yet as Gever Tulley points out in Fifty Dangerous Things(You Should Let Your Children Do),children who grow up as safe as possible become adults who aren't adventurous,highly adaptable,or confident.Sometimes you have to fall out of a tree to figure out how to climb one the right way,and learning that you can accomplish such a thing on your own teaches you that you can be self--sufficient. With Fifty Dangerous Things,Gever Tulley,has written a handbook of activities that are,yes,dangerous at some level-like playing with fire,breaking glass,and opening batteries.The book is a blueprint to help parents and children explore the world,and ensure the children grow up,with a little common sense and a lot of curiosity. Both the advice and the warnings are down to earth.Yes,there are risks,but Tulley provides good ways to learn to avoid them through your own skill.It takes work to raise a child who can use a table saw or build a campfire.But with this book in hand,it'll be a satisfying adventure. We see a child climbing a tree and the first thing we think of is how they might fall and be disabled for life.We seldom say,"Look at how well Sarah is climbing that tree!" When we protect children from every possible source of danger,we also prevent them from having the kinds of experiences that develop their sense of self--reliance,their ability to deal with risks,and their sense of accomplishment. Question: According to the author,a helicopter parent_. Options: A: lets his kids do whatever they want to B: allows his kids do what is dangerous C: does whatever he can to protect his kids D: considers whatever a kid does is risky
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C