TRIK JITU MENGERJAKAN SOAL TOEFL,WRITTEN EXPRESSION DAN PEMBAHASANNYA
TRIK JITU MENGERJAKAN SOAL TOEFL(READING) DAN JAWABANNYA
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Human have struggled against weeds since the beginnings of agriculture.Marring our gardens is one -third the milder effects of weeds-any plants that thrive where they are unwanted.They clog waterways,destroy wildlife habitats,and impede farming.Their spread eliminates grazing arcas and accounts for one-third of all crop loss.They compete for sunlight.,nutrient,and water with useful plants.
The global need for weed control had been answered mainly by the chemical industry.Its herbicides are effective and sometimes necesarry,but some pose serious problems,particularly if misused.Toxic compounds threaten animal and public health when they accumulate in food plants, groundwater,and drinking water.They also harm workers who apply them.
In recent years,the chemical industry has introduced several herbicides that are more ecologically sound.Yet new chemicals alone cannot solve the world's weed problems.Hence,scientists are exploring the innate weed-killing powers of living organisms,primarily insects ad microorganisms.
The biological agents now in use are environmentally benign and are harmless to humans.They can be chosen for their ability to attack selected targets and leave crops and other plants untouched.In contrast,some of the most effective chemicals kill virtually all the plants they come in contact with,sparing,only those that are naturally resistant or have been genetically modified for resistance.Furthermore,a number of biological agents can be administered only once,after which no added applications are needed.Chemicals typically must be used several times per growing season.
1.With what topic does this passage primarily deal?
a.The importance of the chemical industry.
b.The dangers of toxic chemicals.
c.Advantages of biological agents over chemical ones.
d.A proposal to ban the use of all herbicides.
The passage generally concerns the advantages of biological agents and the disadvantages of chemical agents.
2.The word"marring"in line 1 is closest in meaning to
a.spoiling
b.dividing
c.replacing
d.planting
The word marring means spollong,running.
3.The word"clog"in line 2 is closest in meaning to
a.drain
b.float on
c.obstruct
d.grow along
The word clog is closest in meaning to the word obstruct.
4.Which of the following terms does the author define in the first paragraph?
a.grazing areas
b.weeds
c.wildlife habitats
d.nutrients
The author defines"weeds"as"any plants that thrive where they are unwanted"(line 2).No definitions are offered for the other terms.
5.Which of the following statements about the use of chemical agents as herbicides would the author most likely agree?
a.It should be increased
b.It has become more dangerous recently
c.It is safe but inefficient.
d.It is occasionally required.
Line 6 says"herbicides...are sometimes necessary."
6.Which of the following is NOT given as an advantage of using biological agents over chemical herbicides?
a.They are less likely to destroy desirable plants
b.They are safer for workers
c.They are more easily available
d.They do not have to be used as often
Choice(A)is given in lines 13-14,which says that the use of biological agents"leave(s) crops and other plants untouched"while chemical agents"kill virtually all the plants they come in contact with."Choice(B) is also given;chemical agents"harm workers who applay them"(line 8) while biological agents"are harmless to humans"(line 12);Choice(D) is given in lines 16-17;"biological agents can be administrated only once"while chemical agents"must be used several times per growing season."
7.Which of the following is closest in meaning to the word"Hence" in line 10?
a.in addition
b.consequently
c.subsequently
d.in contrast
The word bence means consequently or therefore.
8.Th word"innate"in line 11 is closest in meaning to
a.natural
b.effective
c.organic
d.active
The word innate means natural or in-born.
9.According to the passage,biological agents mainly consist of
a.insects and microorganisms
b.useful plants
c.weeds
d.herbicides
According to the passage,the living organisms used to kill weeds are"primarily insects and microorganisms"
10.The word"those"in line 15 refers to
a.chemicals
b.targets
c.plants
d.agents
The reference is to plants
11.The word"applications"in line 17 could best be replaced by which of the following?
a.requests
b.special purposes
c.treatments
d.qualifications
In this context,applications means treatmen's with biological agents.
12.Which of the following best describes the organization of the passage?
a.A general idea is introduced and several specific examples are given
b.A recommendation is analyzed and rejected
c.A problem is discribed and possible solutions are discussed
d.Two possible causes for a phenomenon are compered
The problem is the need to control weeds,the possible solutions are the use of chemical or biological agents.
2 DAN PEMBAHASANNYA in my blog.
reference:
TOEFL SUCCESS(PETERSON'S)
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soal soal toefl dan pembahasannya 2