《首发》湖北省黄冈中学2019年中考英语理科实验班提前招生全真模拟卷二

Sometimes evidence(证据) means actually seeing (or hearing, feelings, smelling ...) that something is true. Astronauts have travelled far enough from the Earth to see with their own eyes that it is round. Sometimes our eyes need help. The \望远镜) you can see that it is a beautiful ball. Something that you learn by direct seeing (or hearing or feeling ...) is called an observation(观察).

Often evidence isn't just observation on its own, but observation always hides at the back of it. If there's been a murder, often nobody (except the murderer and the dead person!) actually observed it. But detectives can gather together lots of other observations which may all point towards the suspect. If a person's fingerprints match those found on a knife, this is evidence that he touched it. It doesn't prove that he did the murder, but it can help when it's joined up with lots of other evidence.

Prediction helps to look for evidence. Scientists make a guess about what might be true. For example, if the world is really round, we can predict that any of us, going on and on in the same direction, should eventually find ourselves back where we started.

People sometimes say that you must believe in feelings deep inside, but not all the inside feelings are real evidence.

What can we do about all this? When somebody tells you something that sounds possible, think to yourself: \somebody tells you that something is true, why not say to them: \kind of evidence is there for that?\( ) 48. Which of the following is TRUE according to the passage?

A. What you see directly is real evidence.

B. Prediction helps to prove something if it is true. C. People should always believe their inside feelings. D. Astronauts find the Earth is round with a telescope.

( ) 49. Why does the writer use the example of a detective in Paragraph 4?

A. To explain what prediction is.

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B. To tell what observation is called. C. To introduce how detectives work.

D. To prove evidence is not just observation.

( ) 50. The underlined word \

A. completely

luckily

( ) 51. What's the best title of the passage?

A. Evidence speaks B. Scientists make predictions C. Inside feelings help get ideas D. Observation offers the facts

E

Most of us are used to seasons. Each year, spring follows winter, which follows autumn, which follows summer, which follows spring. And winter is colder than summer. But the earth goes through temperature cycles over much longer periods than those that we experience.

Between 65,000 and 35,000 years ago, the planet was much colder than it is now. During that time the temperature also changed a lot, with periods of warming and cooling. Ice melted during the warm periods, which made sea levels rise. Water froze again during the cold periods.

A new study from Switzerland sheds light on where ice sheets melted during the ice age.

It now seems that the ice melted at both ends of the earth, rather than just in either northern or southern areas. This surprised the researchers from the University of Bern.

Scientists have long assumed（认为）that most of the ice that melted was in the Northern hemisphere(半球) during the 30,000-year long ice age. That belief was held because the North Pole is surrounded by land, while the South Pole is surrounded by the Antarctic Ocean. It is easier for ice sheets to grow on land. If surrounded by sea the ice can easily just slip into the ocean instead of building up.

The researchers used a computer model to look at ways the ice could melt and how it might affect sea levels. They compared these results to evidence of how

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B. probably C. finally D.

temperatures and currents actually changed during that time.

The model showed that if it was only in the Northern hemisphere that ice melted, there would have been a bigger impact(影响) on ocean currents(洋流) and sea temperatures than what actually happened. Studies suggest that melting just in the Southern hemisphere would have been impossible, too.

The only reasonable conclusion(结论), the scientists could make, was that ice melted equally in the North and the South.

It is still a mystery as to what caused the temperature changes that caused the ice to melt.

( ) 52. The underlined phrase “sheds light on” (in paragraph 3) can be replaced

by_______.

A. throws doubts on B. beats down on C. makes it clear D. makes light of ( ) 53. We can infer from the passage ________. A. the ice can easily just slip into the ocean

B. melting just in the Northern hemisphere would have been impossible C. volcanoes(火山) caused the ice to melt

D. researchers often use the computer models help their research work. ( ) 54. The scientists are not sure ________. A. what caused the temperature changes B. where ice sheets melted during the ice age C. how long the ice age lasted D. what the earth is made up of

( ) 55. Which of the following is the best title for the passage? A. A computer model

B. Studies show ice melted equally in the North and the South during the

ice age

C. A survey result

D. Most of the ice melted in the Northern hemisphere during the 30,000-year

long ice age.

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I. 单项填空

1—5 CADBD 6II.完形填空

16—20 DABCB 21III. 阅读理解36—39 CDBA 4012

参考答案

—10 ADABC 11—15 DBACC —25 CADBC 26—30 DACAD 31—35 BDCBD —43 DACB 44—47 DBCD