We’re surrounded by chemistry in everyday life. Sometimes it is easy to see, like when your science teacher does a big experiment in class. At other times, it can be pretty hard to see everyday chemistry at work, but nearly everything you touch or use has some element of chemistry in it.
Something as simple as toothpaste contains at least three chemicals, if not more. It is the mixture of them and its chemical reaction that keeps your teeth clean. Other things you use every day are created by chemistry, such as hair products, shampoo and soap. Adding detergent (洗涤剂) to water involves chemistry. Without chemistry, we would never have known that we need soap to get the oil out of clothes or skin. Chemistry not only helps us make products for use, but it also helps us understand the world around us. Chemistry helps us understand what the ozone layer (臭氧层) is and how it protects us. Chemistry also gives us sunscreen to protect us from the sun. Thanks to chemistry, we know bleach (漂白剂) can’t be mixed with vinegar(醋), because it can produce poisonous gas.Without chemistry, we wouldn’t have fireworks displays on important days.
Chemistry plays a big role in food preparation. Cooking food causes it to go through a chemical change. That is why cooked food often tastes different from raw food. Baking is a great example of chemistry. Too much or too little of any ingredient（成分，尤指烹饪） makes a difference to the result of baking, for example, the dough (面团) won’t rise or the cake will be flat.
Chemistry isn’t something that just lives in a lab; it’s something that you meet hundreds of times every day. Knowing how chemistry works will give you a greater understanding of the science behind some of the simplest-looking things.
【小题1】What’s the main idea of Paragraph 1?

One morning, Charley, a little green frog, was sitting in a pond by the side of the road.

Wanda, the neighborhood witch(女巫), was walking along the road. She was a good witch and dreamt to become a fairy godmother who can save people from trouble with magic powers. Wanda had been learning fairy godmother magic for 103 years. That morning, she decided to try the magic she had learned and bring happiness to others.

Seeing Wanda, Charley cried, “Hi, Wanda.”

“Hi, Charley,” replied Wanda, “I have a surprise for you.”

Then, Wanda waved her wand(魔杖), said a magic word, and Charley turned into a prince!

When Charley-turned-prince looked at himself in the water, he cried, “Hey! You turned me into a prince! It’s a surprise all right, but I don’t want to be a prince! Change me back right now!”

“Oh, dear,” Wanda said. “You shouted so loud that I forgot the way to change you back. But who wouldn’t rather be a prince?”

“I wouldn’t!” cried Charley. “I want to be a frog!” He stuck out his tongue, missing a bug (虫子)flying by the end of his nose. “Look at that, Wanda! I was a good fly catcher. But now, this tongue is too short! Please change me back!”

“I can’t, Charley. But you’ll learn to be happy as a prince.” She waved her wand, and suddenly a castle appeared. Out of the castle dozens of musicians were playing various instruments. “Charley! You’ll have servants, eat delicious foods, and you can sing and dance and snap fingers(弹响指).”

“No!” Charley interrupted, “I don’t want all these! I want bugs!” Charley cried. “I don’t want to sing and dance! And why would I do something as silly as snapping my fingers?”

“Snapping fingers!” cried out Wanda. “That’s what I forgot!” She snapped her fingers, cried “Upsi-doodle!” and the castle and musicians disappeared and the prince became a little green frog.”

Charley looked at himself in the water. “ You did it, Wanda. Oh, happy day! I’m a frog.”

“I must apologize, Charley,” Wanda said, “You are a happy frog. I should know this a moment ago.”

1.Wanda turned Charley from a frog into a prince          .

A．of her own will                         B．to play a joke on him

C．at the request of charley                  D．to teach Charley a lesson

2.After the little green frog became a prince, he        .         .

A．was grateful to Wanda                   B．wanted a great palace

C．couldn’t recognize Wanda               D．became angry with Wanda

3.At the end of the story, Wanda probably felt        .       .

A．satisfied          B．ashamed          C．worried           D．excited

4.According to the passage, which of the following conclusions can we get?

A．Just be yourself                         B．Do nothing by halves

C．Helping others is a virtue                  D．Where there is a will, there is a way

One morning, Charley, a little green frog, was sitting in a pond(池塘) by the side of the road.
Wanda, the neighborhood witch(女巫), was walking along the road. She was a good witch and dreamt to become a fairy godmother who can save people from trouble with magic powers. Wanda had been learning fairy godmother magic for 103 years. That morning, she decided to try the magic she had learned and bring happiness to others.
Seeing Wanda, Charley cried, “Hi, Wanda.”
“Hi, Charley,” replied Wanda, “I have a surprise for you.”
Then, Wanda waved her wand(魔杖), said a magic word, and Charley turned into a prince!
When Charley-turned-prince looked at himself in the water, he cried, “Hey! You turned me into a prince! It’s a surprise all right, but I don’t want to be a prince! Change me back right now!”
“Oh, dear,” Wanda said. “you shouted so loud that I forgot the way to change you back. But who wouldn’t rather be a prince?”
“I wouldn’t!” cried Charley. “I want to be a frog!” He stuck out his tongue, missing a bug (虫子) flying by the end of his nose. “Look at that, Wanda! I was a good fly catcher. But now, this tongue is too short! Please change me back!”
“I can’t, Charley. But you’ll learn to be happy as a prince.” She waved her wand, and suddenly a castle appeared. Out of the castle dozens of musicians were playing various instruments. “Charley! You’ll have servants, eat delicious foods, and you can sing and dance and snap fingers(弹响指).”
“No!” Charley interrupted.(打断) “I don’t want all these! I want bugs!” Charley cried. “I don’t want to sing and dance! And why would I do something as silly as snapping my fingers?”
“Snapping fingers!” cried out Wanda. “That’s what I forgot!” She snapped her fingers, cried “Upsi-doodle!” and the castle and musicians disappeared and the prince became a little green frog.”
Charley looked at himself in the water. “ You did it, Wanda. Oh, happy day! I’m a frog.”
“I must apologize, Charley,” Wanda said, “you are a happy frog. I should know this a moment ago.”
【小题1】Wanda turned Charley from a frog into a prince       

完形填空（共20小题；每小题1分；满分20分）
My name is Amy. I’m a 25-year-old graduate student who likes yoga, home-decorating shows and eating spoonfuls of peanut butter   1  from the jar. Oh yeah, and I’m an iPhone addict.
I wasn’t always an addict. In fact, for many years I told myself I didn’t want a   2       cellphone. They seemed like too much work, always beeping, ringing and   3  attention. I was   4  content with my simple antique (古董，此处指旧手机), and I didn’t expect to change my mind any time soon.
However, about a year ago, I found myself envious of all those proud iPhone owners, cradling their shiny new phones and   5  all their friends. I started listening secretly to conversations about “iPhone apps”, feeling like a   6  listening to a language I couldn’t speak.
Eventually I couldn’t   7  my iPhone instinct (本能) any longer, and I welcomed my new iPhone into my life.
To my surprise, I suddenly found myself with a whole new circle of friends. They   8     my iPhone-related inquiries when my other friends couldn’t, and didn’t   9  when I bragged about (吹嘘) all the things little Eloise (yes, I named her) could do.
However, I realized I had a problem when one day I found myself Google-mapping my way to my mailbox, which happens to be right outside my front door.
When I   10  the past few months, I couldn’t believe I didn’t see this coming. All the   11  signs were there. Eloise slept right beside me and was the first thing I   12 in the morning. I   13  my e-mail about 20 times a day. I also experienced   14  when I left poor Eloise in the change room at the gym.   15  she beeped and needed my response?
Okay, so I was addicted to my iPhone.
I decided   16  had to be done. But, as I quickly realized, iPhones are like   17  and not easy to quit.
Then, while taking the bus to work one day, I was   18  forced to quit—at least   19 . When I reached into my purse to grab Eloise, (to refer to my e-mail for only the seventh time that morning), I found her   20  by fever. She was so hot that I dropped her immediately back into my bag. When I picked her up again, she was gone.

One morning, Charley, a little green frog, was sitting in a pond(池塘) by the side of the road.

Wanda, the neighborhood witch(女巫), was walking along the road. She was a good witch and dreamt to become a fairy godmother who can save people from trouble with magic powers. Wanda had been learning fairy godmother magic for 103 years. That morning, she decided to try the magic she had learned and bring happiness to others.

Seeing Wanda, Charley cried, “Hi, Wanda.”

“Hi, Charley,” replied Wanda, “I have a surprise for you.”

Then, Wanda waved her wand(魔杖), said a magic word, and Charley turned into a prince!

When Charley-turned-prince looked at himself in the water, he cried, “Hey! You turned me into a prince! It’s a surprise all right, but I don’t want to be a prince! Change me back right now!”

“Oh, dear,” Wanda said. “you shouted so loud that I forgot the way to change you back. But who wouldn’t rather be a prince?”

“I wouldn’t!” cried Charley. “I want to be a frog!” He stuck out his tongue, missing a bug (虫子) flying by the end of his nose. “Look at that, Wanda! I was a good fly catcher. But now, this tongue is too short! Please change me back!”

“I can’t, Charley. But you’ll learn to be happy as a prince.” She waved her wand, and suddenly a castle appeared. Out of the castle dozens of musicians were playing various instruments. “Charley! You’ll have servants, eat delicious foods, and you can sing and dance and snap fingers(弹响指).”

“No!” Charley interrupted.(打断) “I don’t want all these! I want bugs!” Charley cried. “I don’t want to sing and dance! And why would I do something as silly as snapping my fingers?”

“Snapping fingers!” cried out Wanda. “That’s what I forgot!” She snapped her fingers, cried “Upsi-doodle!” and the castle and musicians disappeared and the prince became a little green frog.”

Charley looked at himself in the water. “ You did it, Wanda. Oh, happy day! I’m a frog.”

“I must apologize, Charley,” Wanda said, “you are a happy frog. I should know this a moment ago.”

1.Wanda turned Charley from a frog into a prince       

2. After the little green frog became a prince, he         .

3. The underlined part “You did it” in the passage means “    “.

4. At the end of the story, Wanda probably felt       .

5.According to the passage, which of the following conclusions can we get?