TRIK JITU MENGERJAKAN SOAL TOEFL,WRITTEN EXPRESSION DAN PEMBAHASANNYA
TRIK JITU MENGERJAKAN SOAL TOEFL(READING)
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A binary star is actually a pair of stars that are held together by the force of gravity.Although occasionally the individual stars that compose a binary star can be distinguised,they generally appear as one star.The gravitational pull between the individual stars of a binary star causes one to orbit around the other.From the orbital pattern of a binary,the mass,and the srength of the gravitational force of one star on another determines the orbital pattern of the binary.
Secientist have discovered stars that seem to orbit around an empty space.It has been suggested that such a star and the empty space really composed a binary star.The empty space is known as a "black hole,"a star with such strong gravitational force that no light is able to get through.Although the existence of black holes has not been proven,the theory of their existence has been around for about two centuries ,since the French mathematician Pierre Simon de Laplace first proposed the concept at the end of the eighteenth century.Scientific interest in this theory has been intense in the last few decades.However,currently the theory is unproven.Black holes can only be potentially identified based on the interactions of objects around them,as happens when a potential black hole is part of a binary star;they,of course,cannot be seen because of the inability of any light to escape the star's powerful gravity.
1. A binary star could best be described as
a.stars that have been forced apart
b.a star with a strong gravitational force
c.two stars pulled together by gravity
d.a large number of attached stars
2.The word"distinguished"in line 2 is closest in meaning to
a.renowned
b.tied
c.celebrated
d.differentiated
3.According to the passage,what happens as a result of the gravitational force between the stars?
a.One star circles the other.
b.The mass of the binary star increases.
c.A black hole is destroyed.
d.The gravitational force decreases.
4.The word"proportion"in line 5 is closest in meaning to which of the following?
a.Contrast
b.Ratio
c.Inversion
d.Force
5.A "black hole"in line 9 is
a.an empty space around which nothing orbits
b.a star with close to zero gravity
c.a star whose gravitational force blocks the passage of light
d.an empty space so far away that no light can reach it
6.Which of the following statements about black holes is NOT supported by the passage?
a.A black hole can have a star orbiting around it.
b.A binary star can be composed of a black hole and a visible star.
c.All empty space contains black holes.
d.The gravitational pull of a black hole is strong.
7.The word"get"in line 9 could best be replaced by
a.pass
b.sink
c.jump
d.see
8.Which of the following is implied in the passage about the theory of black holes?
a.No reputable scientists believe it.
b.It has only recently been hypothesized.
c.At least some scientists find it credible.
d.Scientists are hoping to see a black hole in order to prove the theory.
9.The word"intense'in line 12 is closest in meaning to
a.briliant
b.intermittent
c.bright
d.strong
10.This passage wpuld probably be assigned reading in a course on
a.botany
b.astrophysics
c.geology
d.astrology
reference:
LONGMAN PREPARATION COURSE FOR THE TOEFL TEST
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soal soal toefl dan pembahasannya 2