2014英语专业八级全真模拟试题(2)

The passage contains TEN errors. Each indicated line contains a maximum of ONE error. In each case, only ONE word is involved. You should proof-read the passage and correct it in the following way:

For a wrong word, underline the wrong word and write the correct one in the blank provided at the end of the line.

For a missing word, mark the position of the missing word with a "∧" sign and write the word you believe to be missing in the blank provided at the end of the line.

For an unnecessary word, cross out the unnecessary word with a slash "/" and put the word in the blank provided at the end of the line.

Example

When ∧art museum wants a new exhibit, ( 1 ) an

It 0av~ buys things in finished form and hangs ( 2 ) never

them on the wall. When a natural history museum

wants an exhibition, it must often build it. (3) exhibit

A summary of the physical and chemical nature of life must begin,

not on the Earth, but in the Sun; in fact, at the Sun's very center. It is here

which is to be found the source of the energy that the Sun constantly pours 41.______

out into space light and heat. This energy is librated at the center of 42.______

the Sun as billions upon billions of nuclei of hydrogen atoms collide

with each other and fuse together to form nuclei of helium, and doing 43.______

so, release out some of the energy that is stored in the nuclei of atoms. 44._____

The output of light and heat of the Sun requires that some 600 million

tons of hydrogen are converted into helium in the Sun every second. 45.______

This the Sun has been doing for several thousands of millions of years.

The nuclear energy is released at the Sun's center as high-energy

gamma radiation, a form of electromagnetic radiation like light and

radio waves, only of very much short wavelength. This gamma radiation 46._____

is absorbed by atoms inside the Sun to be reemitted at slight longer 47._____

wavelengths. This radiation, in its turn is absorbed and reemitted. As the

energy filters through the layers of the solar interior, it passes through

the X-ray part of the spectrum eventually becoming light. At this stage,

it has reached that we call the solar surface, and can escape into space 48.____

without being absorbed further by solar atoms. A very small fraction of

the Sun's light and heat are emitted in such directions that after 49._____

passing unhindering through interplanetary space, it hits the Earth. 50._____

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