An annoying problem for humans, who like to boast (夸耀) about all the distant planets and moons we have explored, is that we've never taken a good look right under our noses．The inside of the earth is relatively close but how can we get there?

The deepest oil well enters a mere six miles into the crust (地壳)  (the center of the earth is about 4,000 miles deeper)．Russian scientists dug the deepest hole in Siberia," but bottomed out at about 7.5 miles below the surface．The Mohole project, a U.S．plan in the 1950s, called for drilling a hole 25 miles down to the boundary be??tween the hard rocks of the crust and the soft mantle (地幔)．Sadly the project involved govern??ment supporting.

It gets harder and harder to drill deep into the earth because rocks get softer and softer． Hard but easily broken at the surface, rocks become plastic at depth, and the pressure caused by the weight of the overlaying crust — about 52,800 pounds per square inch at a depth of ten miles, makes further drilling impossible.

What little we know about the inside of the earth (like the fact that there' s a crust, a mantle, and a core) comes from indirect evidence, such as the analysis of earthquakes.

So maybe it' s time for a thorough new method to explore the earth's inside．Scientist David Stevenson says we should forget about drilling holes．Instead, we should open a crack (裂缝)． 

Stevenson suggests digging a crack about a half mile long, a yard wide, and a half mile deep (not with a shovel) but with an explosion on the scale of a nuclear bomb．Next, he'd pour a few hundred thousand tons of molten (融化的) iron into the crack, along with a robot．The iron, thicker than the surrounding crust, would move downward at about 16 feet per second, carrying the robot with it and opening the crack deeper and deeper．The iron mass would drop for about a week and 2,000 miles to the outer edge of the earth core, the robot sending out data to the sur??face.

Stevenson compares his idea to space explo??ration．"We're going somewhere we haven't been before," he says．"In all possibility, there will be surprises."

This idea can probably be put in．the drawer marked with Isn't Going To Happen．The robot would have to survive temperatures that would melt pretty much anything．But Stevenson's idea may inspire a new look at an old problem．Great things can come from what seems like impossible ideas.

Going inside the earth is ________ than going into space.

A．more interesting B．more possible    C．easier            D．more challenging

How deep have we gone into the earth until now?

A．6 miles．         B．4,000 miles． C．7.5 miles．        D．25 miles.

Which of the following is TRUE about David Stevenson's idea?

A．It is an inspiring but not practical idea now．

B．It is a practical proposal that has come into use now.

C．It is a good proposal that will soon be put into practice.

D．It is a false theory that cannot be carried out at all.

What might be the most suitable title for the text?

A．An Annoying Problem for Humans

B．To the Center of the Earth

C．The Mohole Project

D．David Stevenson' s Proposal

________ many changes have _______, we should keep pace with the changes too.

A. Since; taken the place                   B. Because; taken place

C. Now that; taken place                    D. As; been taken place

___ difficulty you may have, we will always fight along with you.

A. What    B. How      C. Whatever      D. However

E

Humans are naturally drawn to other life forms and the worlds outside of our own. We take delight in the existence of creatures and even whole socicties beyond our everyday lives.

This sense of wonder is universal look at the efforts that scientists have made to find out whether life of some kind exists on Mars, and the popularity of fantasy(幻想) litcrature or movies like The lord of the Rings, This sense of wonder drous us to each other, to the world around us, and to the world of make-believe. But have we gone to far in creating worlds of fantasy that we are missing the phcasure of other worlds that alrewly exist all around us?

Human beings, as biologists have suggested, possess an inborn desire to connect with and understand other life forms, However, people, especially in big cities, often lead rather isolated lices. In a study of British schoolchildren, it was found that children bye age eight were much more familiar with hurmans for television shows and cideo games than with common wildlife. Without modern technology ,a amall pond could be an amazing world filled with strange and beautiful plants, insects,birds,and animals. When we lack meaningful interaction (交互) with the world around us, and sometimes ecen with our families and friends , we seek to understand and communicate with things that exist only in our imaginations or on a computer screen

The world of make-believe is not neccsanly bad, But when the world of  famsity becomes the only outlet (出路) our sense of wonder ,then we are really missing something, We are missing a connection with the living world. Other wonderful worderful worlds exist all around us. But even more interesting is that if we look closely enough ,we can see that these worlds, in a broad sense , are really part of our own.

72.The popularity of  The Lord of the rings proves     

  A.the close connestion between man and the fantasy world

  B.the wonderful achievements of fantasy literature

  C.the fine taste of moviegoers around the world

  D.the general existence of the sense of curiosity

73.What can we infer from the underlineed sentence in Paragraph 3?

  A.People are fra less familiar with the world of fantasy.

  B.The world around us could serve as a sound of  wonder.

  C.The world of fantasy can be mirred by  a small and lively pond.

  D.Modern technology prevents us from developing our sense of wonder.

74. If our sense of wonder relics totally on the world of make-believe. we will_______.

A.fail to appreciate the joy in our lives

B.be confused by the world of make-believe

C.miss the chance to recognizc the fantas world

D.be tranped by other worlds exsting all around us

75. What is the main purpose of the passage?

A.To show us the hidden beauty in our world.

B.To warn us not to get lost in the fantasy wonder

C.To argue against the misuse of the sense of wonder

D.To discuss the influence of the world of make-believe

E
Humans are naturally drawn to other life forms and the worlds outside of our own. We take delight in the existence of creatures and even whole socicties beyond our everyday lives.
This sense of wonder is universal look at the efforts that scientists have made to find out whether life of some kind exists on Mars, and the popularity of fantasy(幻想) litcrature or movies like The lord of the Rings, This sense of wonder drous us to each other, to the world around us, and to the world of make-believe. But have we gone to far in creating worlds of fantasy that we are missing the phcasure of other worlds that alrewly exist all around us?
Human beings, as biologists have suggested, possess an inborn desire to connect with and understand other life forms, However, people, especially in big cities, often lead rather isolated lices. In a study of British schoolchildren, it was found that children bye age eight were much more familiar with hurmans for television shows and cideo games than with common wildlife. Without modern technology ,a amall pond could be an amazing world filled with strange and beautiful plants, insects,birds,and animals. When we lack meaningful interaction (交互) with the world around us, and sometimes ecen with our families and friends , we seek to understand and communicate with things that exist only in our imaginations or on a computer screen
The world of make-believe is not neccsanly bad, But when the world of  famsity becomes the only outlet (出路) our sense of wonder ,then we are really missing something, We are missing a connection with the living world. Other wonderful worderful worlds exist all around us. But even more interesting is that if we look closely enough ,we can see that these worlds, in a broad sense , are really part of our own.
72.The popularity of  The Lord of the rings proves     
A.the close connestion between man and the fantasy world
B.the wonderful achievements of fantasy literature
C.the fine taste of moviegoers around the world
D.the general existence of the sense of curiosity
73.What can we infer from the underlineed sentence in Paragraph 3?
A.People are fra less familiar with the world of fantasy.
B.The world around us could serve as a sound of  wonder.
C.The world of fantasy can be mirred by  a small and lively pond.
D.Modern technology prevents us from developing our sense of wonder.
74. If our sense of wonder relics totally on the world of make-believe. we will_______.
A.fail to appreciate the joy in our lives
B.be confused by the world of make-believe
C.miss the chance to recognizc the fantas world
D.be tranped by other worlds exsting all around us
75. What is the main purpose of the passage?
A.To show us the hidden beauty in our world.
B.To warn us not to get lost in the fantasy wonder
C.To argue against the misuse of the sense of wonder
D.To discuss the influence of the world of make-believe