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1997年8月托福考试阅读理解全真试题 [2]

论文作者:佚名论文属性:短文 essay登出时间:2009-09-24编辑:lisa点击率:16727

论文字数:1000论文编号:org200909241542423343语种:英语 English地区:中国价格:免费论文

关键词:托福试题

f the Anasazi
(B) The military tactics employed by the Anasazi
(C) The Anasazi s agricultural technology.
(D) The natural barriers surrounding Anasazi willages.

10.The passage supports which of the following generalizations?
(A) The presence of the Spanish threatened Anasazi society.
(B) The Anasazi benefited from trading relations with the Spanish.
(C) Anasazi society exhibited a well-defined division of labor.
(D) Conflicts between neighboring Anasazi villages were easily resolved.

Question 10-20

Barbed wire, first patented in the United States in 1867,
played an important part in the development of American
farming, as it enabled the settlers to make effective fencing to
enclose their land and keep cattle away from their crops. This
had a considerable effect on cattle ranching, since the herds no
longer had unrestricted use of the plans for grazing, and the
fencing led to conflict between the farmers and the cattle
ranchers.

Before barbed wire came into general use, fencing was often
made from serrated wire, which was unsatisfactory because
it broke easily when under strain, and could snap in cold
weather due to contraction. The first practical machine for
producing barbed wire was invented in 1874 by an Illinois
farmer, and between then and the end of the century about
400 types of barbed wire were devised, of which only about a
dozen were ever putto practical use.

Modern barbed wire is made from mild steel high-tensile
steel, or aluminum. Mild steel and aluminum barbed wire
have two strands twisted together to form a cable which is
stronger than single-strand wire and less affected by temperature
changes. Single-strand wire, round or oval, is made from
high-tensile steel with the barbs crimped or welded on . The
steel wires used are galvanized - coated with zinc to make
them rustproof. The two wires that make up the line wire or
cable are fed separately into a machine at one end. They leave
it at the other end twisted-together and barbed. The wire to
make the barbs is fed into the machine from the sides and cut
to length by knives that cut diagonally through the wire to
produce a sharp point. This process continues automatically,
and the finished barbed wire is wound onto reels, usually made
of wire in length of 400 meters or in weights of up to 50
kilograms.

A variation of barbed wire is also used for military
purposes. It is formed into long coils or entanglements called
concertina wire.

11.What is the main topic of the passage?
(A) Cattle ranching in the United States.
(B) A type of fencing
(C) Industrial uses of wire
(D) A controversy over land use.

12.The word "unrestricted" in line 5 is closest in meaning to
(A) unsatisfactory
(B) difficult
(C) considerable
(D) unlimited

13.The word "snap" in line 10 could best be replaced by which of the following?
(A) freeze
(B) click
(C) loosen
(D) break

14.What is the benefit of using two-stranded barbed wire?
(A) Improved rust-resistance
(B) Increased strength
(C) More rapid attachment of barbs
(D) Easier installation.

15.According to the author, the steel wires used to make barbed wire are specially processed to
(A) protect them against rust
(B) make them more flexible <论文英语论文网提供整理,提供论文代写英语论文代写代写论文代写英语论文代写留学生论文代写英文论文留学生论文代写相关核心关键词搜索。

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