TASK DEFINITION: In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.
PROBLEM: Article: Does it drive you crazy that your cell phone needs to be frequently charged for hours? A team of scientists led by professor Harold Kung at Northwestern University in the US may have solved your problem. They developed a lithium ion batery that holds 10 times as much power and charges 10 times more quickly than standard batteries, according to the BBC in a report on November 15. Lithium ion bateries are rechargeable and are widely used in cameras, smartphones and laptops. They charge through a chemical reaction in which lithium ions are sent between the two ends of a battery. How much power the battery holds and how fast it charges are limited by two things:how many lithium ions it has and how quickly these ions move. Current rechargeable batteries have an anode made of many carbon-based graphene sheets. To increase energy capacity, former experiments have tried to replace the carbon with silicon, which can hold far more lithium ions. However, this method did not work because the silicon was not stable enough. Kung's team managed to stabilize the silicon. They put clusters of silicon between the graphene sheets like a sandwich so that the silicon could not move around freely and take away the energy. The speed at which a battery charges is hindered by the shape of the graphene sheets because it takes a long time for the lithium to travel from one side of the sheet to the other.Sometimes a "traffic jam" occurs around the edges of the graphene. To solve this problem, Kung's team used a special chemical process to create tiny holes of 10 to 20 nanometers wide in the graphene sheets so the lithium ions would have a "shortcut" and be able to travel directly to the other side. This reduced the time it took the battery to recharge. About 15 minutes of charging can last more than a week. "Even after 150 charges, which would be one year or more of operation, the battery is still five times more effective than lithium ion batteries on the market today," said Kung. The technology could be widely available within five years, the researchers said.
Question: What is the major problem of current rechargeable batteries?
Options: (A) They are not very stable. (B) They cannot hold enough silicon. (C) They have limited energy capacity. (D) The space between the graphene sheets is too big.
Asnwer: A

SOLUTION: No

PROBLEM: Article: While many other teen stars built up their celebrity status by working hard on popular TV shows, Justin shot straight to the top by using social media. A few years ago, Justin uploaded videos of himself on YouTube, showing _ of his favorite songs at home. He just saw it as a bit of fun for friends and family, but when music manager Scooter Braun saw one of the videos, he flew to Justin's hometown of Ontario, Canada to sign him up. Justin was just 13. Shortly after, Justin was flown to the US. He eventually started working with R&B superstar Usher. Justin's first album My world was released in 2009. But all the time, Justin continued to build his fan base on his YouTube account, where some of his original home videos can still be found, and where he continues to post music. "I wasn't sending mixtapes or anything like that to record labels," he told us when we met him on his promotional tour for his latest film Justin Bieber: Never Say Never. "I was just doing regular stuff at home and I just posted videos online without purpose. I would never be here if it wasn't for the Internet and YouTube." But it isn't just YouTube that helps Justin's popularity. He also updates his Twitter account (@Justin-Bieber) regularly and has about 8.8 million followers. In fact, he's so popular that Justin was responsible for 3% of the site's activity at one time and so popular that entire racks of servers on Twitter were devoted to him. In light of his story, many young, aspiring artists are now taking advantage of Twitter and YouTube. Both these sites can help artists build fan bases in the hope that they'll become the next big thing. Justin added, "I think my story brings hope to people and I think that's very important. The only thing holding you back is yourself. Never say never."
Question: What is the best title for the passage?
Options: (A) A famous young man (B) YouTube---A popular website (C) Justin's way to success (D) Social media is the most important
Asnwer: B

SOLUTION: No

PROBLEM: Article: If you're in charge of a project, the key to success is getting everyone to want to help you. As a director, I point, I suggest, I gently push the actors in the direction I want them to go. In the 1986 movie Nothing in Common, Jackie Gleason's character, Max Basner, gets fired (or unemployed) from his job as a clothing salesman. The scene, shot on a boat, shows Max's despair about being out of work. I was looking for some gesture that would allow Max to show his feelings. Jackie had far more experience at everything than I did, and at first I was frightened (very much afraid). What could I possibly tell "The Great One" about acting? Out of fear I decided to direct by suggestion, and I sat down with Gleason to talk about the scene. "So Max is sad, right?" I said. Gleason nodded. "And he's probably still carrying his pens with his name on them --- the ones he used to hand out to his customers, right?" Gleason nodded. " So what would you want to do with the pens after you were fired?" He was silent for a moment. "Why don't I throw them overboard (or all over the boat)?" I stood up and turned toward the crew. " Hey, everybody, Jackie has a wonderful idea. Let's shoot it." After filming the scene, Gleason called me over and said with a smile, "Garry, what kind of wonderful idea am I going to have tomorrow?" You and your team can discover the answers to problems together. When there are no prizes or gold stars for who gets the solution (or the way to work out a problem) first, you'll all benefit (or get something of use or value) when everything turns out right.
Question: The author tells us that to succeed in a project you are in charge of, you should _ .
Options: (A) make everyone work for you (B) get everyone willing to help you (C) let people know you have the final say (D) keep sending out orders to them
Asnwer: A

SOLUTION:
No