阅读理解 On June 26, 2000, two scientists, called Fran
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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.
B. In 1953.
C. In 1961.
D. In 2000.
B. A special language.
C. Small parts of DNA.
D. DNA.
B. A new illness.
C. The language of DNA.
D. A message of DNA.
B. Make medicine for illnesses.
C. Make maps of human.
D. Make people less attractive.
cause good or bad resutls. B. It can cause only good results.
C. It can cause good results but won’t work.
D. It can cause only bad results.
答案
举一反三
describe something that they do not do very often. For example, someone might say that he tries to
avoid eating sweets because they are unhealthy, but will eat chocolate"once in a blue moon". Or
someone who does not usually like to go to the beach might say " I visit the shore once in a moon."
While many people use this phrase, not everyone knows the meaning behind it.
The first thing to know is that the moon itself is never really blue. This is just an expression fact, the
phrase "blue moon" has to do with the shape of the moon, not the color.
As the moon travels around the earth , it appears to change shape. We associate names with certain
shapes of the moon. For example, when we can see a small part of the moon is called a crescent moon.
A crescent is a shape that looks like the tip of a fingernail When we cannot see the moon at all, it is called
a new moon.
When we can see the whole moon is called a full moon. Usually, there is only one full moon every
month. Sometimes , however will be two full moons in one month. When this happens, the second full
moon is called a moon".
Over the next 20 years, there will only be 15 blue moons. As you can see, a blue moon every rare
event. This fact has led people to use the expression "once in a blue moon" to other very rare events in
their lives.
A. Simon often tells jokes. Simon tells jokes once in a blue moon.
B. Tom rarely remembers to do exercise. Tom does exercise once in a blue moon.
C. Mary likes to go shopping every weekend. Mary goes shopping once in a blue moon.
D. Cindy nates to stay up, but she stays up every day. Cindy stays up once in a blue moon.
2. When does a blue moon happen in nature?
A. When the moon has a blue moon.
B. When we cannot see the moon at all.
C. When there are two full moons in one month.
D. When we can only see a small part of the moon.
3. Which of the following is another example of something that has a shape?
A. The letter "O"
B. The letter "M"
C. The letter "H"
D. The letter "C"
4. How often will a blue moon happen over the next twenty years?
A. Once a year.
B. Less than once a year.
C. More than once a year.
D. At least twice a year.
5. What does the underlined part "This fact" in the last paragraph refer to (所指)?
A. A blue moon is a very rare event.
B. The moon appears to change shape.
C. The moon itself is never really blue.
D. A blue moon has to do with the shape of the moon.
Last year, a serious school bus accident happened in China,when a nine-seat minibus crashed.There were 62 children inside ,and 21 of them died. To stop such accidents, the Center Government decided
to strengthen(加强)the rules for school buses.
On April 5, the Government published new rules about school safety. These new rules are much
stricter than the old ones.
Under the new rules, local governments must make sure that students attend nearby schools or
boarding (寄宿的)schools to reduce traffic risks(风险). Also, local governments must help kids in the
countryside reach their school buses.
From now on ,school buses have a speed limit(限速)of 80km per hour on highways and 60km per
hour on normal roads. While on the road, other cars must let school bus go first.
The new rules also say that school buses must never be overloaded(超载).
There are many other rules as well. A school bus must have than seven seats. On each bus, there
must be at lest one adult(成年人)to keep an eye on the kids. Each school bus must have a fire
extinguisher(灭火器),a first aid kit(急救箱)and a GPS.
B. drop out
C. go to
B. School buses can go first when there are other cars.
C. School buses must driver 80km/h or less on normal roads.
B. a parent of one of the students.
C. a fire extinguisher and a first aid kit.
B.62 students died in a school bus accident last year
C. 200 million children in China go to school by bus every day.
B. Safety First on School Buses
C. Bus Speed Limit Is Necessary
are less honest than previous generations (上一代人).
The survey was done among 29,760 students at 100 US high schools. The results suggest that in
the past year, 30 percent of US high school students have stolen from a store. And 64 percent may
have cheated on a test.
However, 93 percent of the students said they were satisfied (满意) with their honesty. And 77
percent said,"when it comes to doing what is right, I am better than most people I know."
Some teachers were unhappy about the survey results. Some, however, defended (为……辩护)
today"s students.
"The competition is greater and the pressures (压力) on kids have increased greatly,"said Mel
Riddle, who was a high school teacher and headmaster for 40 years."It is the pressures that make it
easy for students to be dishonest."
"I think these students are better than other generations,"he said."I find them more active, better
to work with and more thankful for support."" We have to create situations where it"s easy for kids to
do the right things, "he added."We need to create classrooms where learning is more important than
having the right answer."
B. They don"t get along well with teachers
C. They are not so honest as older generations
D. They have too many tests to take each week
B. work harder
C. are less healthy
D. are busier at school
B. 64
C. 77
D. 93
B. He thinks parents must do something to stop it
C. He thinks the students should change their behavior
D. He thinks there are some reasons for being dishonest
B. Make it easier for them to learn
C. Ask students to find right answers
D. Give students more free time to have fun
| A. Scientists are still working on testing them. B. So some clever farmers have solved (解决) the watermelon problem. C. Doctors might be able to use vegetables to fight cancer now. D. Since 1990s, many Chinese farmers have had amazing rice harvests (收成). E. Well, today the poem needs to change to"Roses are red, roses are blue"! |
| 阅读理解。 |
| In many British schools, the pupils usually wear their school uniforms to school on weekdays. However, recently the students at LVS Ascot Junior School in England wore something quite different. What they wore was what people wear when they go to bed - pyjamas (睡衣). They did this not only for fun, but for a local charity called Christopher’s Smile. Christopher’s Smile was set up in 2008 by Karen & Kevin Capel whose only son Christopher died of cancer at a young age. They hope their charity will help pay for more research into children’s cancers. Since then, the charity has raised a lot of money and gotten more and more volunteers. Every year, thousands of people take part in different activities such as charity walk or run to show their support for Christopher’s Smile. The students of Grade 6 at LVS Ascot Junior School also wanted to do something for the sick children. They organized the event “Pyjama Day” to support Christopher’s Smile. “We wanted to raise money for our charity in a way that the whole school could join in it, so each pupil paid ￡1 to wear his or her pyjamas to school on Pyjama Day,” said the young organizers. Both the students and their teachers took part in the event with great interest. Together they not only raised some money, but also had a good time. |
| 1. Who set up Christopher’s Smile? |
| A. LVS Ascot Junior School’s teachers. B. The local government. C. LVS Ascot Junior School’s students. D. Christopher’s parents. |
| 2. Christopher’s Smile was set up to . |
| A. tell people some knowledge about children’s cancers B. have fun for the students in LVS Ascot Junior School C. help the local government do more things for students D. raise money for more research into children’s cancers |
| 3. What is not mentioned in the passage? |
| A. Charity walk. B. Charity run. C. Charity concert. D. Pyjamas Day. |
| 4. Which of the following is TRUE? |
| A. It has been four years since Christopher’s Smile was set up. B. Few pupils wear school uniforms to school on weekdays in Britai  n.C. In LVS Ascot Junior School, only students join in the event “Pyjama Day”. D. All students in England need to wear pyjamas to school on Pyjama Day. |
| 5. The best title for the passage may be . |
| A. The Christopher’s Smile B. Fun and charity C. The Pyjama Day D. Children’s cancers |