question: In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva. Saliva, a liquid secreted by the salivary glands, contains salivary amylase, an enzyme which starts the digestion of starch in the food; the saliva also contains mucus, which lubricates the food, and hydrogen carbonate, which provides the ideal conditions of pH (alkaline) for amylase to work. After undergoing mastication and starch digestion, the food will be in the form of a small, round slurry mass called a bolus. It will then travel down the esophagus and into the stomach by the action of peristalsis. Gastric juice in the stomach starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. As these two chemicals may damage the stomach wall, mucus is secreted by the stomach, providing a slimy layer that acts as a shield against the damaging effects of the chemicals. At the same time protein digestion is occurring, mechanical mixing occurs by peristalsis, which is waves of muscular contractions that move along the stomach wall. This allows the mass of food to further mix with the digestive enzymes.
1. where does food enter?
2. as part of what system
3. what action starts the process?
4. what does saliva contain?
5. what does juice in the tummy do?
****
answer: 1. Tthe mouth
2. Digestive system
3. Chewing
4. salivary amylase
5. Starts protein digestion

question: Greg enjoys playing with his friends. On Friday, Greg went outside to play with two of his friends, Peter and Lucy. They played with a ball for some time, but then they got bored. Lucy said that she wanted to climb a tree. Peter thought that they could see if their other friend Robert could play with them.

The three of them went to find Robert. They saw Robert in front of his house, but he said that he was busy and he could not play with them. Greg and Peter then thought that Lucy's idea was good. There was a large tree in the park. Greg, Peter, and Lucy walked to the park together.

When they got to the park, they were surprised by the size of the tree. It was much larger than they thought. At first, Greg was scared to climb the tree. But Peter and Lucy told him that it would be fun, so he began to climb. When he had climbed the first few branches, he slipped and fell down. But he was not hurt. After that, the three friends thought that it was too dangerous to climb that tree. So they all went home.

When Greg went home, his mother asked him what happened. She saw that his shirt was dirty. Greg explained about the tree. Then he changed into a different shirt, so that his mother could wash the dirty shirt.
1. Who enjoys playing?
2. with whom does he like playing?
3. named?
4. what did they do for fun first?
5. what did the girl want to do?
6. did they ask someone else to do that, too?
7. who?
8. did he go with them?
9. where did they find a tree?
10. was it little?
11. were they all brave about going up it?
12. who decided to try climbing?
13. did he get far?
14. what happend?
15. was he ok?
16. did they try to climb again?
17. what did they do instead?
18. was Greg clean?
19. was his mom mad?
****
answer: 1. Greg
2. his friends
3. Peter and Lucy
4. played with a ball
5. climb a tree.
6. Yes
7. Robert
8. No
9. the park.
10. No
11. No
12. Greg
13. No
14. he fell down
15. yes
16. No
17. went home.
18. no
19. No

question: ELMONT, N. Y. (AP)---Elmont High School senior Harold Ekeh had a plan--he would apply to 13 colleges , including all eight Ivy League schools, figuring it would help his chances of getting into at least one great school.

It worked, And then some, The teenager from Long Island was accepted at all 13 schools, and now faces his next big test: deciding where to go.

"I was stunned, I was really shocked, "Ekeh told The Associated Press during an interview Tuesday at his home near the Belmont Park racetrack, his four younger brothers running around.

He found out last week he had been accepted to Princeton University. That made him eight for eight in the Ivy League--he had already been accepted to Yale University , Brown University, Columbia University , Cornell University , Dartmouth College, Harvard University and University of Pennsylvania. His other acceptances came from Johns Hopkins University, Massachusetts Institute of Technology, New York University, Stony Brook University and Vanderbilt University.

"We are so proud of him, " said his mother , Roseline Ekeh."Hard work, dedication, prayer brought him to where he is today. "

Born in Nigeria, Harold was eight years old when his parents brought the family to the United States.

"It was kind of difficult adjusting to the new environment and the new culture, " he said. But he saw his parents working hard, "and I took their example and decides to _

He referenced that effort in his college essay, writing, "Like a tree, uprooted and replanted, I could have withered in a new country surrounded by people and languages I did not understand. Yet, I witnessed my parents persevere despite the potential to give in. I faced my challenges with newfound zeal; I risked insults, spending my break talking to unfamiliar faces, ignoring their sarcastic remarks. "

Harold "is tremendously focused in everything he does." said John Capozzi, the school's principal, "He's a great role model. All the students and faculty are so proud of him. "

Harold is the second Long Island student in as many years to get into all eight Ivies. Last year, William Floyd High School's Kwasi Enim chose to go to Yale.

Harold, who has a 100. 51 grade-point average and wants to be a neurosurgeon, said he was leaning toward Yale, and had heard from Enin, offering congratulations. Like Enin, he's likely to announce his college choice at a press conference later this month. The deadline to decide is May 1.
1. Where was Harold born?
2. Is Long Island in Nigeria?
****
answer:
1. Long Island
2. No