Answer the questions at the end based on the text.

(CNN) -- Tiger Woods faces two challengers as he bids to retain the world's No. 1 golf ranking for a 271st week at the WGC-Bridgestone Invitational starting in Ohio on Thursday.

The 34-year-old has been at the summit for an unprecedented 612 weeks in total, but once again faces the prospect of losing top spot to fellow American Phil Mickelson -- and a new contender, world No. 3 Lee Westwood.

While second-ranked Mickelson has failed to take advantage of Woods' struggles in recent weeks, finishing only tied for 48th at the British Open, Westwood has racked up the points after placing second at his home major last month.

The Englishman can go to No. 1 if he wins at Firestone and Woods is outside the top two -- or if he is second, the defending champion is 10th or lower and Mickelson does not win.

Mickelson can finally surpass Woods if he wins, or if he finishes in the top four and his compatriot is outside the top 37.

"Am I conscious of the pack closing in? Yes, because every tournament you guys remind me," Woods told reporters on Wednesday ahead of his bid for an eighth title in the event.

"You play. How I got here was playing golf tournaments and winning golf tournaments."

Woods will partner Westwood for the first two rounds in Akron, knowing that his rival has finished second in two majors this year and was runner-up at Firestone behind Vijay Singh in 2008.

"I've always enjoyed playing with Westy, he's a great guy. We've been going at it for a long time," he said of the 37-year-old, who he also played with at the U.S. Open in June.

1. How can Phil Mickelson become world No. 1?
2. Has he been able to take advantage of the opportunity so far?
3. How so?
4. Who else is in the running?
5. Anyone else?
6. Who?
7. Where is he from?
8. What event starts on Thursday?
9. Where is it being held?
10. What city?
11. How can Westwood become No. 1?
12. Who will play together the first two days?
13. How old is Tiger?

Numbered answers:

A: 1. if he wins at Firestone and Woods is outside the top two
2. No
3. he was finishing only tied for 48th at the British Ope
4. Woods
5. Yes
6. Lee Westwood
7. England
8. WGC-Bridgestone Invitational
9. Ohio
10. Akron
11. if he is second, the defending champion is 10th or lower and Mickelson does not win
12. Mickelson and Woods
13. 34-year-old

Answer the questions at the end based on the text.

Once upon a time there was a man who needed to write story. His name was Mark. He had a bad case of writer's block. After a bit, he wrote a story about writing a story. This may seem a bit odd. Well, it was. The important thing to know is that Mark wanted money. This was so he could show off for his girl, Wendy. Wendy had two living parents named Greg and Gail. The exciting thing about Mark writing these stories, was that he could write whatever he wanted to. He could have written about bears. Or it could have been his best friend Error. There were so many choices for Mark. He was very happy. He was happy because he was almost done writing the story. Wendy, had she known about the writing would have been sad that Mark spent so much time thinking of odd stories.

1. What did the man need to do?
2. Why did he want to write them?
3. What was standing in his way?
4. What made him content?
5. Was the topic of the story the normal thing to write about?
6. What was so great about writing these stories?
7. What type of things could be included in the stories?
8. How did his girlfriend feel about the stories?
9. How would she have felt had she found out about them?
10. Why?

Numbered answers:

A: 1. write a story
2. he wanted money
3. writer's block.
4. he was almost done writing the story.
5. no
6. he could write whatever he wanted to
7. bears, his friend
8. she did not know about it
9. sad
10. because he spent so much time thinking of odd stories

Answer the questions at the end based on the text.

Imagine what you could do with a machine that could make things disappear.

For inspiration, you could read some books. In the books of J.R.R. Tolkein, Bilbo Baggins finds a ring that can make him disappear. Of course, there's also poor Harry Potter, who used his invisibility cloak to hide from danger.

Now that you've got some ideas, it's time for the hard part: building the cloak. To do that, you have to give up science fiction and turn to real science. An invisibility cloak has to cheat anything or anyone who might be watching. In order to understand how something can be seen, it's important to understand how we see.

Human beings can only see objects that reflect light waves. These waves enter the eye and are then processed by the brain. However, if an object doesn't reflect light, then the waves don't enter the eye, and the brain doesn't process. So building an invisibility cloak is building something that doesn't reflect light.

Cummer was part of a team of scientists from Duke University, including David Smith and David Schurig, who built the world's first version of an invisibility cloak. They had been inspired by the work of a British physicist, John Pendry. He in May said that an invisibility cloak was possible and Pendry was not the only one thinking about a disappearing act. At the same time, a Scottish physicist, UIf Leonhardt published a paper on building invisibility equipment.

"It wasn't easy," says Cummer. "As often happens in science and research, it didn't work very well the first time. That first cloak didn't work like Harry Potter's --- the scientists didn't actually see anything disappear. So the research is still under way. "

1. what are people trying to build?
2. who tried to build the first one?
3. how many in the group?
4. were they named in the story?
5. what are the names of two of them?
6. who's work served as the inspiration for their project?
7. what novelist is mentioned?
8. what is the name of one of his characters?
9. what did he find?
10. did it do anything?

Numbered answers:

A:
1. an invisibility cloak
2. a team of scientists from Duke
3. Three
4. Yes
5. David Smith and David Schurig
6. Harry Potter
7. J.R.R. Tolkein
8. Bilbo Baggins
9. A ring
10. make him disappear