2009年职称英语等级考试试题理工类C

The policemen acted quickly because lives were __at stake__

__Practically__ all animals communicate either through sounds or through soundless codes.

Mary __rarely__ speaks to Susan.

I'm working with a __guy__ from London

You'd better put these documents in a __safe__ place

The courageous boy has been the subject of __massive__ media coverage.

The town is famous for its __magnificent__ buildings

The great change of the city __astonished__ all the visitors.

Jack packed up all the things he had accumulated over the __last__ ten years.

Would you please __call__ my husband as soon as possible？

We had a long __conversation__ about her parents

The chairman __proposed__ that we stop the meeting.

Obviously these people can be __relied on__ in a crisis.

There is always excitement at the Olympic Games when an athlete __breaks__ a record

Nowadays many scientists depend on radiocarbon for dating age-old objects

The radiocarbon dating technique is only about 40 years old

An atom of ordinary carbon has six protons and eight neutrons

Radar is used to determine the characteristics of radiocarbon.

Radiocarbon is reliable in dating an object back to at least 50，000 years.

When an organism dies， the C-14 in it begins to decay.

The half-life of C-14 is about 25，000 years.

Paragraph 1_________

Paragraph 2_________

Paragraph 3_________

Paragraph 4_________

Remembering involves getting the material back out when it is_________

Grouping bits of information into larger chunks helps improve the capacity of    our_________

Long-term memory has an almost unlimited capacity and a_________

As a measure of memory， relearning is more sensitive than_________

On a clear night， people can see

Light pollution occurs when

Nowadays even suburbs are becoming unsuitable for scientists to do their jobs because

How does light pollution affect wildlife？

The title “Light Night， Dark Stars” means

Which statement about Barth is NOT true？

When Barth was a college student， he often shopped at thrift shops

What does Akins do？

Thrift shops can do everything EXCEPT

The word “thrift” in paragraph 1 could be best replaced by

Liquid water only exists

The total quantity of water on Earth

Most of the fresh water on Earth

The word “fraction” in the second paragraph means

There is more rainfall