DNA is the whole "map" of the human body. It is something that all humans have, and it tells the body what to do. DNA is the reason that we look like our parents, 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 I860, Mr Mendel discovered why we look the same as other people in our family. It is because of small things called "genes"(基因) in our body. In 1953, two scientists, Watson and Crick, found out that those small parts are really messages. They’re written in the DNA with a special language.
In 1961, another two scientists found the first "word" that they could understand in that language. It shows how DNA tells the cell (细胞)to build its parts, 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 to save people from several illnesses. So the more we understand, the more doctors will be able to do.
Most people hope that this will help to make better medicine and help sick people. Other people worry that when we learn more "words" and find out more information, we will use it in the wrong way, just to make people more attractive, or stop sick people getting jobs.
1. The two scientists found ______in 1961.
A. all the words in the DNA map
B. small things called "genes" in our body
C. the first "word" they could understand in that language
D. those small parts arc written in the DNA with a special language
2.How can we help sick people if we understand more "words" in the DNA map?
A. Make better medicine.
B. Make them get jobs.
C. Make maps for them.
D. Make them attractive.
3.Which one is NOT TRUE according to the article?
A. We look like our parents because of "genes" in our body.
B. We have understood what all the words in the DNA map do.
C. DNA is the whole "map" of the human body.
D. DNA tells the cell to build its parts.
4.What do people think about this research about DNA?
A. It can be only bad.
B. It can be only good.
C. It can be good but won't work.
D. It can be good and bad
The message was short. I read it three times: “Hey, Mom, can I come to see you?” I wrote back: “Yes!” He said he hoped to make it in time for dinner.
I made a quick run to the market, put sheets on the guest bed and set the TV to record the Warriors’ game, so if traffic was awful, he wouldn’t have to miss the first half. Then I began cooking, cleaning, watching the clock and listening for his footsteps coming up the walk.
It’s called waiting. I’m good at it. When he was a newborn, I’d wait for him to go to sleep. Soon then I’d stand by his bed waiting for him to wake up. I waited, as he learned to do things like walking, talking and feeding himself; throwing a ball, riding a bike and reading a book.
I waited for him to start preschool, primary school, middle school and college.
I waited with dread for him to start driving. And I waited up every time he came home late.
I wait for my son to grow up, but that doesn’t mean the waiting game is over. It never really ends.
Mothers wait for all kinds of reasons—good news or bad, happiness or heartache. But the waiting is soon forgotten, usually, the minute a long awaited child walks through the door.
My boy will be here soon. But if he’s late, I can wait. I’m good at it. And he’s worth(值得) it. I will always leave a light on for him.
1.After knowing her son would come home, which of the following activities did she do?
a. Shopping. b. Cooking.
c. Cleaning. d. Watching the Warriors’ game.
A. bc B. ad C. abc D. bcd
2.What does the underlined word “dread” mean?
A. 激动 B. 骄傲 C. 厌恶 D. 害怕
3.Which of the following about the writer is TRUE according to the article?
A. Luckily, her son never makes her wait long.
B. She has experienced all kinds of feelings while waiting for her son to do things.
C. When her son went to college, her waiting ended.
D. Waiting for her son is often boring, but once her son arrives she forgets about it.
4.Which do you think would be the best title for the reading?
A. Worth waiting for
B. Being patient is difficult
C. Learn to be a mother
D. Visit your mother often
Some city schools have brought WeChat(微信) into the classroom now. Students and teachers communicate by WeChat. Is WeChat good to use in classroom? Here come some different voices from students.
I don’t think we should use WeChat in class. We need to use mobile phones for Wechat. But it is hard for teachers to manage the class. Some students can’t control themselves if they have mobile phones. They will use them to play games or QQ in class. So I think it is not necessary to use WeChat in class. --Guo Ruiting, 14, Guangdong | I think it’s good for teachers to use Wechat in class. When they raise a question, all students will be glad to answer it on Wechat. They don’t have to raise their hands, but just use the keyboard to note down a few words. And the way helps to relax everyone. It helps us to answer questions as well. --Zhang Yaoyi, 12, from Shanghai |
We used Wechat in class once. It was good. Everyone was excited to see their words on the screen. Some students used to be shy in class. They didn’t speak in class. But everyone was surprised to see them talking a lot on WeChat. So I think it is good for us to use things like Wechat in class. --Liu Qing, 15, from Zhejiang | We chat is good for class. However, we must use it carefully. When we use it in class, most students are excited to take part in activities and happy to talk about any questions. Surely, teachers are able to manage the time and control the class, or the class must be a little bit messy. --Sun Jiayang, 13, from JIangsu |
1.We can know _____ was born in 2003.
A. Guo Ruiting B. Sun Jiayang
C. Liu Qing D. Zhang Yaoyi
2.From the passage, we know _____ student(s) must be against using WeChat.
A. one B. two C. three D. four
3.Liu Qing thinks Wechat in class is especially good for _____ students.
A. honest B.shy
C. careless D. hard-working
4.Sun Jiayang advises teachers to _____ when WeChat is used in classrooms.
A. raise a question
B. take part in activities
C. control the class
D. write down a few words
1.How old was King when he died?
A. 29. B. 39. C. 65. D. 68.
2.Which of the following is RIGHT?
A. King was born in Tennessee.
B. King led a bus boycott in Alabama.
C. King received the Nobel Peace Prize in 1963.
D. King gave his “I Have a Dream” speech in 1965.
3.What’s the purpose of the time line in this article?
A. To teach the students to draw a time line.
B. To introduce Martin Luther King Jr. Day.
C. To tell more about Martin Luther King Jr.
D. To explain why whites and blacks were separated.
完形填空
请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项。
It all started at the beginning of the ninth grade. Carmen found she couldn’t see things ________ all the time. She became very worried, but she hoped ________would know that. When her mother asked her to see the eye doctor, she didn’t __________ . But her mother’s mind was made up.
Three days later, Carmen got new glasses and instructions from her doctor. “All of the kids will think I’m _________.” Carmen said. Her mother ________ and shook her head. “You look just as beautiful as before”, she said. But Carmen didn’t believe her.
The next day, Carmen kept the ________ in her pocket as she walked into the schoolyard. She stood alone away from her friends, feeling __________. Suddenly, she heard her friend Theresa shout. Carmen ran over to the other girls. “What’s the ________ ?” she asked.
“My ring is gone!” Theresa cried. “My sister sent it to me from California. It’s very ________ and I can’t lose it.”
Carmen and her friends began to ________ for the ring in the grassy area of the playground. Carmen realized that she could do better ________ she could see better. She took the glasses out and put them on. Everything looked so ________ ! So clear! She looked down at the ground and a bright light caught her eyes. It was the _________ .
“Here it is,” she shouted. She handed it to Theresa.
“Thanks, Carmen,” she said. “I ________ thought we’d find it.” she paused (停顿). “Hey, I didn’t know you wore glasses. They look great!”
Carmen had ________ that she was wearing the new glasses. “Thanks,” she replied.
“Maybe wearing glasses won’t be so bad after all.” Carmen thought.
1.A. clearly B. carefully C. freely D. quickly
2.A. everybody B. anybody C. somebody D. nobody
3.A. refuse B. mind C. agree D. understand
4.A. cool B. silly C. proud D. pretty
5.A. nodded B. cheered C. smiled D. shouted
6.A. watch B. keys C. gift D. glasses
7.A. tired B. unhappy C. angry D. nervous
8.A. matter B. reason C. question D. Secret
9.A．special B．common C．cheap D．heavy
10.A. ask B. wait C. look D. pay
11.A. though B. if C. because D. until
12.A. natural B. new C. interesting D. different
13.A. ball B. ring C. present D. glasses
14.A. still B. ever C. never D. often
15.A. heard B. found C. remembered D. forgotten
—I think students should have mobile phones to call their parents.
—_____. They often use them to play games instead.
A. I hope so B. I don't agree
C. No problem D. Good idea
