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.

[Q]: 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
[A]: No


[Q]: Article: "No man is an island" is a well-known line from John Donne's Devotion. It was written more than three hundred years ago. Even now people still agree with him. No one can live a completely lonely life. Without other people, life will become empty and sad. We all need to have friends. For some of us, although making friends is not difficult, feeling shy, we may not want to make the first move. It is also difficult at times to keep the friends we already have. There are many books about friendship, but Dale Carnegie's How to Win Friends and Influence People, written in 1936, is the most famous. This "how to" book about getting along with other people became a best seller. It was later put into 28 languages. Dale Carnegie's advice seems to be simple, but can his advice help you? Do you need to change the way you act? Here is the list of advice from his book: Be friendly and polite. Always greet with a smile. Begin with "Excuse me" or "Would you please" when you want to ask somebody. Remember to say "Thank you" and try to be as helpful as you can. Go out of your way to be nice. Find some time to do special things for other people. Making some soup for a sick neighbour may seem like a little thing to you, but it will make your neighbor feel a lot better. Remember names. They say that the sweetest music to a person's ears is the sound of his or her own name. Be open-minded. Try to understand other people's ways and ideas and learn something from them. Listen patiently. When someone is talking to you, look at him or her, listen carefully and say something when necessary. 
 Question: The best title for the passage should be   _  . 
 Options: (A) How to Make Friends (B) A Famous Book (C) Friendship First (D) John Donne and Dale Carnegie 
 Asnwer: B
[A]: Yes


[Q]: Article: Some families live quite far in the UK.Visiting them can either be an adventure or a chore .It depends on how much family members like each other. If all goes well,kids have an exciting time.Your relatives will plan different fun activities and make you happy.Taking you to visit relatives gives your parents a chance to rest.It gives older relatives a good chance to _ when they had young kids.If they do not have children of their own,they get to play parent for a while. I remember that Blackpool Pleasure Beach was the place I liked to go with my grandparents It is an amusement park on the northwest coast.It is packed with roller coasters and candy stalls .You could race small boats on a lake or scare yourself into death riding the ghost train.I had good memories of my time there. As you get older,you suddenly become the one who must help your relatives with their kids.I have four COUSINS aged between one and eleven.They are fantastic and I really enjoy seeing them.However,it is very tiring,as they get so excited and energetic .I fall asleep hoping they will remember our good times when they get older. 
 Question: If all goes well,visiting relatives far away can be   _  for kids. 
 Options: (A) dangerous (B) exciting (C) boring (D) hard 
 Asnwer: B
[A]:
Yes


