Detectives often look for footprints when they try to solve crimes. Scientists use footprints, too—dinosaur footprints when they try to figure out how dinosaurs lived and moved.
Dinosaurs died out about 65 million years ago. Today scientists work to solve the mysteries of these ancient animals.
Footprints, or tracks(脚印), are an important way to learn about dinosaurs. Christian Meyer of the Natural History Museum in Basel, Switzerland, calls dinosaur tracks “the closest thing to a movie” of dinosaurs.
“They tell us something about the size of the animal, the way they were walking…they tell us something about their speed,” Meyer said.
Tracks also show that dinosaurs sometimes traveled in groups. Traveling in groups probably helped dinosaurs protect themselves from enemies. Plus, some meat-eating dinosaurs may have hunted in groups, much like wolves do today. Being in a group could help dinosaurs work together to kill large animals.
Dinosaur footprints can be as small as a few inches across, but they can also be as big as a few feet across. Dinosaur footprints have been found throughout the world at over 1,500 sites, including a T. Rex footprint in New Mexico. “Trackways” are groups of footprints.
And scientists aren’t the only ones finding dinosaur tracks—kids can, too! Eleven-year-old Mark Turner and nine-year-old Daniel Helm discovered dinosaur tracks in British Columbia, anada. Soon scientists began studying the tracks.
Scientists and other people interested in studying dinosaurs are working to save the trackways from activities like construction and mining.
1.The passage mainly tells us that_______.
A. there were really dinosaurs on the earth millions of years ago
B. dinosaurs were the most frightening animals in the past
C. dinosaur footprints are important in learning about dinosaurs
C. why dinosaurs died out millions of years ago
2.By studying footprints scientists can know the following EXCEPT _______.
A. how big the dinosaur was B. what color the dinosaur was
C. how fast the dinosaur could run D. how the dinosaur walked
3. By working in groups, some meat-eating dinosaurs_______.
A. made the hunting of large animals easily
B. could travel a long way without being lost
C. could protect themselves from being hunted by wolves
D. could get to a place faster
4. From the last paragraph we can infer that some human activities like mining_______.
A. are helpful to the study of dinosaurs
B. can help scientists solve many mysteries
C. can lead to the discovery of the footprints
D. can destroy the footprints of the dinosaur
We often hear the phrase: "You've a greater chance of being struck by lightning." It is used to describe something that hasn't got much chance of happening. However, the common saying undermines(掩盖) the very real dangers of lightning.
Last Friday, at least 5 people were killed by lightning in Nepal(尼泊尔).
Lightning strikes are the second most common cause of deaths during natural disasters in the US. The first is floods. Around 400 people nationwide are struck by lightning each year, and of those, 73 people die. There are more people killed by lightning than by tornadoes and hurricanes.
Because lightning kills only one or two people at a time, its danger does not receive as much attention as other disasters.
So to raise awareness, the US has made June 22-28 National Lightning Safety Week. It aims to warn the public of the dangers of lightning and provide safety tips during thunderstorms.
"If you hear thunder, you are in danger of lightning," said Rocky Lopes, a disaster educator at the American Red Cross.
"Thunder means that lightning is close enough to hit you at any minute, so you should move indoors immediately and stay there until after the storm has ended. The single most important thing to remember is to seek a hiding place," Lopes said.
Summer is the high time for lightning storms, so when lightning strikes across the sky, remember these safety tips:
Stop working, fishing, swimming or playing in open fields.
If you can count less than ten seconds between a thunder and a lightning flash, take cover inside the nearest building.
Do not stand under a tree.
Get off bicycles or motorcycles.
Crouch down(蹲下)if there is no hiding place.
Avoid open spaces, wire fences, metal objects and electrical objects such as hair driers.
1. The popular opinion about being struck by lightening is that ______.
A. there’s a greater chance for being killed by lightening than any other natural disaster
B. it is the most dangerous among all the natural disasters
C. the chance for a person to be struck by lightening is very small
D. it is impossible for people to be killed by lightening
2.The average death rate of being struck by lightening in US is about _______.
A.18% B.50% C. 30% D. 73%
3.thunder in the open air______.
A. just stand by your bicycles and motorcycles
B. quickly find a place to go inside
C. count ten seconds between a thunder and a lightening
D. don’t have a hair drier in your hand
4.According to the passage, which of the following is TRUE?
A. There are more people killed by tornadoes and hurricanes than by lightening in US each year.
B. There are on average 5 persons killed by lightening in Nepal each day.
C. The death rate of being stuck by lightening is much higher than by other natural disasters.
D. The National Lightening Safety Week is made to warn the public against the lightening.
完形填空（共20小题；每小题1.5分，满分30分）
Some people who find themselves unable to solve a problem react by just giving up. But it is not good to 36 problems by giving up or make excuses for 37 . You may be sure that all young people 38 the same difficult process that you are going through: meeting new situations, developing new skills, and testing their abilities.
If you are unhappy about something, face it. Try to 39 the problem in a few words, so that you will know exactly what you are 40 . Then see if you can “put you finger” on the 41 of your unhappiness.
In many cases, we only “think” there is no 42 to a particular problem. But often we can 43 the problem and achieve the goal by making a direct 44 .
For example, a boy wanted to be a debater(辩论家). When he tried for the debating team as a 45 , the coach thought he was 46 . He was shy; he had a high-pitched voice and his posture(姿态) was poor. Although he was given little hope of success, he took 47 of every 48 to debate. He studied from successful speakers and 49 his own weakness and assets. Then he 50 many hours learning all the facts on the topics for the debate, and worked at developing good posture and at speaking clearly. In his junior year, he made the school 51 team, and in his senior year, he was on the winning team in his state. He 52 his goal because he had made a direct attack on his problem.
53 direct attack is often the best way to face problems, we have to be 54 in judging situations and sometimes it is necessary to 55 the goal. So it is important to study the situation and make a wise decision about what to do.
1. A. escape B. notice C. clear up D. dismiss
2.A. success B. failure C. change D. himself
3. A. go through B. experienced C. escape from D. give up
4. A. say B. state C. find D. solve
5. A. dealt with B. up to C. escaping D. up against
6. A. cause B. purpose C. point D. statement
7. A. way B. solution C. method D. hope
8. A. give up B. think of C. consider D. overcome
9. A. attack B. method C. change D. catch
10. A. director B. instructor C. adviser D. freshman (新人)
11.A. hopeful B. great C. hopeless D. grateful
12. A. use B. advantage C. value D. effect
13. A. minute B. opportunity C. effort D. other
14.A. sized up B. thought up C. made up D. gave in
15. A. cost B. found C. spent D. wasted
16. A. speaking B. successful C. debating D. member
17.A. gave up B. escaped C. caught D. achieved
18.A. Although B. Since C. Because D. However
19.A. false B. realistic C. hopeful D. valuable
20.A. give up B. change C. attack D. strike
I ____ along the street looking for a place to park when the accident ____.
A. went; was occurring B. went; occurred
C. was going; occurred D. was going; had occurred
What a table! I’ve never seen such a thing before. It is _____ it is long.
A. half not as wide as B. wide not as half as
C. not half as wide as D. as wide as not half
阅读理解 A
As you research music, you will find music that is familiar to you. You will find music which tells of interesting places and exciting things to do. You will find music which expresses feelings that are often your own.
Music is an expression of people. As you research, you will find music of people at work and play. You will find music expressing love of the country, love of nature, and love of home.
Music is also an expression of the composer(作曲家). The composer expresses his own musical ideas. He studies the materials of music and discovers ways of using them. He looks for new kinds of musical expression.
Music can suggest actions and feelings which we all share. We can enjoy playing and singing music, dancing and listening to the music of the people and the composers of different times and places.
【小题１】
In the first paragraph, the author tells us to ________.
A. be friendly to music B. find entertainment in music
C. express your feelings in music D. discover the things and places in music
【小题１】
From the second paragraph, we know that ________.
A. if we love music, we will love the country, nature and home
B. you may listen to music at work or at play
C. music sings of the country, nature and home
D. music can express how people live, work and think
【小题１】
The last paragraph shows that music makes it possible ________.
A. that people of different time and places can get together
B. to bring understanding between people of different times and places
C. that people can enjoy playing and singing music, dancing and listening to the
music at the same time
D. that music can express actions and feelings at the same time
【小题１】Which of the following statements is NOT true? Music expresses .
A. people’s musical ideas B. people’s love of te country
C.ehe composer’s feelings D.the feelings of our own
