商业托福|2006年考试新辅导之托福写作题库新增考试试题八(1)

语法

B

1.The ponderosa pine is _____ of most of the timber used by forest product firms in the Black Hills of South Dakota.

the source

as source

the source which

because the source

2.Computers that once took up entire rooms are now _____ to put on deskTOPs^{1 and into wristwatches.}

small enough

smaller than

so small

as small as

3.According to some educator,the goal of teaching is to help students learn what _____ to know to live a well-adjusted and successful life.

do they need

they need

they are needed

as they may need.

4.The sapphire's transparency to ultraviolet and infrared^{2 radiation makes _____ in optical instruments.}

it is of use

it uses

it a useful

it useful

5._____ initial recognition while still quite young.

Most famous scientists achieved.

That most famous scientists achieved

Most famous scientists who achieved

For most famous scientists to achieve.

6.Mango trees,_____ densely^{3 covered with glossy4 leaves and bear small fragrant5 flowers,grow rapidly and can attain6 heights of up to 90feet.}

whose

which are

are when

which

7._____,the Canadian composer Barbara Pentland wrote four symphonies,three concertos,and an opera,among other works.

An artist who,prolific⁷

Is a prolific artist

Prolific an artist

A prolific artist

8.The Chisos Mountains in Big Bend National Park in Texas were created by volcanic^{8 eruptions9 that occurred _____.}

the area in which dinosaurs^{10 roamed}

when dinosaurs roamed the area

did dinosaurs roam the area

dinosaurs roaming the area.

9.In bas-relief sculpture,a design projects very slightly from its background,_____ some coins.

as on

because

the way that

similarly.

10.Alaska found the first years of its statehood cosplaytly^{11 because it had to take over the expense of services _____ previously12 by the federal government.}

To provide

Be provided

providing

provided.

11.With age,the mineral content of human bones decreases,_____ them more fragile.

make

and to make

thereby making

which it makes.

12.Not until Kentucky's Mammoth^{13 Cave had been completely explored in 1972_____.}

when was its full extent realizedthat its full extent realized

was its full extent realized

the realization^{14 of its full extent.}

13.The first explorer _____ California by land was Jedediah Strong Smith,a trapper who crossed the southwestern deserts of the United States in 1826.

that he reachedreached

to reach

reaching it