On June 26, 2000, two scientists, called Francis Collins and Craig Venter, told the world that they could now read the whole “map” of the human body：DNA．DNA is something that everybody has, and it tells the body what to do．DNA is the reason that we look like our mother and father, because we get some of their DNA to make our own．
People have been trying to understand the human body for a long time．In 1860, Gregor Mendel discovered a special reason why we look the same as other people in our family．It is because of small things named “genes” in our body．In 1953, James Watson and Francis Crick made another discovery and found out that those small parts are real messages written in the DNA with a special language．
In 1961, Marshall Nirenberg and Johann Matthaei found a message in DNA showing how DNA tells the cell(细胞)to build its parts．Scientists have now found all the words in the DNA map, but we still do not understand what they all do．By understanding what just one “word” means, we can help save more people from several illnesses．
Most people hope that this will help make better medicine and help sick people．Other people worry that when people begin to know more words and find out lots of other information, we might use it in a wrong way, just to make people more attractive, or stop sick people from getting jobs．Man would have to meet a lot of trouble if DNA technic wasn't limited in use．
根据短文内容，选择最佳答案．
(1)
When did we first know why we look like other people in our family?
[ ]
A．
In 1860．
B．
In 1953．
C．
In 1961．
D．
In 2000．
(2)
What does the underlined word “gene” mean?
[ ]
A．
The “map” of DNA．
B．
A special language．
C．
Small parts of DNA．
D．
DNA．
(3)
What did the two scientists first discover in 1961?
[ ]
A．
The “map” of DNA．
B．
A new illness．
C．
The language of DNA．
D．
A message of DNA．
(4)
What can we do if we understand some “words” of the language inside the body?
We have three kinds of pizzas，small，medium and large．A small pizza with pepperoni．onions and olives is \$ 3.5．A medium pizza with mushrooms． tomatoes and cheese is \$ 4．0．A large pizza with olives and cheese is \$4．7．
Welcome to our house!
Lunch Special
We have some great specials．The pizza with cheese and tomatoes is just \$2．50．The cheap for \$1．50 has green peppers and onions．The pizza and salad lunch special is \$ 2．90．
Time：11：00 a．m．～2：00 P．m．
Pizza Express
Tel：825-3933
The Californian pizza with mushrooms，olives and green peppers is just \$3．00．The pizza with pepperoni and olives is \$ 2.50．The hot dog is \$ 1．50． The lemonade is \$ 1．00．The juice is \$ 0．5．
Order a meal today!
(1)
If you want to buy a small pizza，a medium pizza and a large pizza, you can pay _____ .
A．\$12．20 B．\$8．20 C．\$8．70 D．\$12．70
[ ]
(2)
If you go to the House of Pizza，you can buy 3 medium pizza with _____ on it．
A．pepperoni,onions and olives
B．olives and cheese
C．green peppers and onions
D．mushrooms，tomatoes and cheese
[ ]
(3)
If you only have \$1．50 with you，you can buy _____ at lunch time．
What are the things you must not do when you’re in the school buildings?
(2)
Can you leave school at lunch-time?
(3)
What must you do when your teacher comes into your classroom?
(4)
What do the school rules say about fight?
(5)
When must you get to school every morning?
阅读理解
Jack is a twenty-year-old young man．Two years ago, when he finished middle school, he found work in a shop．Usually he works until ten o’clock in the evening．He is very tired when he gets home．After a quick supper he goes to bed and soon falls asleep．His grandma who lives downstairs is pleased with him．
One day, on his way home, he met his friend Mary．They were both happy．He asked the girl to his house, and she agreed happily．He bought some fruit and drinks for her．And they talked about their school, teachers, classmates and their future．They talked for a long time．
“Have a look at your watch, please,”said the girl．“What time is it now?”
“Sorry, something is wrong with my watch,”said Jack．“Where’s yours?”
“I left it at home．”
Jack thought for a moment and found a way．He began to stamp his foot on the floor, “Bang! Bang! Bang!”
The sound woke his grandma up．The old woman shouted downstairs, “It’s twelve o’clock in the night, Jack．Why are you still jumping upstairs?”
(1)
Jack was ________ when he finished middle school．
[ ]
A．
sixteen
B．
eighteen
C．
twenty
D．
fifteen
(2)
The old woman is satisfied with Jack because ________．
[ ]
A．
he’s her grandson
B．
he’s clever
C．
he can keep quiet
D．
he gets home on time
(3)
From the story, we can know that Mary is Jack’s ________．
[ ]
A．
classmate
B．
colleague (同事)
C．
aunt
D．
wife
(4)
The word “stamp” in the story means ________ in Chinese．
[ ]
A．
盖印
B．
跺
C．
贴邮票
D．
承认
(5)
Jack stamped his foot on the floor inorderto (为了)________．
每日10分钟口算心算速算天天练系列答案