TOEFL-PBT:COMPLEX SENTENCE: NOUN CLAUSE

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COMPLEX SENTENCE: NOUN CLAUSE

1. Disturbances in seabed slope which have occurred over short periods of time have caused scientists to believe __________ more extensive than at first thought.

that tectonic drift is
which tectonic drift
tectonic drifts
tectonic drifting

2. _______ the manatee of south Florida is being pushed to the edge of extinction due to the invasion of its habitat by motorized boats has been shown by marine researchers.

In that
That
Although
Unless

3. Virtually all doctors agree ________ a second diagnosis in the event of a potentially major disease.

that patients should seek
patients should be sought
patients they seek
patients that should seek

Answers: A, B, A,
source:PBT STRUCTURE AND WRITTEN EXPRESSION

COMPLEX SENTENCE: NOUN CLAUSE


4. _______ found in forests can possess deadly toxicity is an element of folk knowledge that has not been passed down to today’s general public.

Those certain mushrooms
That certain mushrooms
Despite it, certain are the mushrooms
Even though certain mushrooms

5. _______ continue to pollute the ocean with all forms of contamination from sewage to solid wastes such as plastic containers remains a mystery to environmentalists.

Although people
People that
Why people
Those people that

Answers: B, C,

COMPLEX SENTENCE: NOUN CLAUSE

6. __________ and have low refractive indices, low dielectric constants, and low surface tensions has long been known by chemists.

Those fluorocarbons are more volatile and denser than corresponding hydrocarbons
That fluorocarbons are more volatile and denser than corresponding hydrocarbons
While fluorocarbons are more volatile and denser than corresponding hydrocarbons
When fluorocarbons are more volatile and denser than corresponding hydrocarbons

7. __________ advances and broadens our understanding of the complex problems of soil fertility.

Whatever adds to the biochemical knowledge of soils
When it adds that to the biochemical knowledge of soils
While it is added to the biochemical knowledge of soils
Whomever adds to the biochemical knowledge of soils

Answers: B, A

COMPLEX SENTENCE: NOUN CLAUSE

8. It is safe to say __________ does not exceed 25%.

because the average efficiency of the best steam engine
which the average efficiency of the best steam engine
that the average efficiency of the best steam engine
with the average efficiency of the best steam engine

9. There is no doubt _________ correspond to the gill clefts which are used in connection with the breathing in fishes.

because of the minute slits which are seen in embryonic reptile and birds
despite the fact that the minute slits which are seen in embryonic reptile and birds
if the minute slits which are seen in embryonic reptile and birds
that the minute slits which are seen in embryonic reptiles and birds

10. Blame for the invention of nuclear weapons must fall upon __________.

however conceived their invention in the first place
whenever conceived their invention in the first place
whatsoever conceived their invention in the first place
whoever conceived their invention in the first place

Answers: C, D, D

1. What is the main topic of this reading?

(A) Women and drugs
(B) The dangers of pregnancy
(C) The fetus and alcohol
(D) Drinking and the human body

2. In line 3 the word "its" refers to

(A) the fetus
(B) the blood
(C) the tissue
(D) the alcohol

3. In line 4, the word "pronounced" most closely means

(A) evident
(B) spoken
(C) described
(D) unfortunate

4. How much time can it be inferred that it takes alcohol to enter a woman's bloodstream after she takes a drink?

(A) about one hour
(B) a few seconds
(C) several minutes
(D) at least 24 hours

5. In line 7 the word "inextricably" most nearly means

(A) unexplainedly
(B) formerly
(C) forcefully
(D) inseparably

6. According to the passage, how does the concentration of alcohol in a fetus compare to that in the mother?

(A) The concentration is more.
(B) The concentration is less.
(C) The concentration is equivalent.
(D) The concentration cannot be measured.

7. It can be inferred that the development of a fetal liver depends on

(A) how many months pregnant the mother is
(B) how much alcohol the mother has consumed
(C) how large the fetus is
(D) how well the mother has taken care of the fetus

8. According to the passage, how is alcohol finally returned to the mother's system?

(A) it is carried through the bloodstream
(B) it is transferred across the placenta
(C) it is expelled by the fetus's liver
(D) it is not completely returned

 

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Here are some more:

1- Last week, our cat gave birth to a litter of kittens, but we didn't know where ________.

(A) is our cat
(B) our cat was
(c) our cat is
(D) was our cat

2- Now, our cat is home again, and we can't believe how many ________.

(A) kittens does she have
(B) kittens has she
(C) she has kittens
(D) kittens she has

3- The kittens are so noisy that I can hardly hear what ________.

(A) are saying you
(B) that you are saying
(C) are saying you
(D) you are saying

4- The cat belongs to my daughter, so my husband insisted that ________ them for adoption.

(A) she offer
(B) she offers
(C) she will offer
(D) she must offer

5- She decided _____________ post some notices around the neighborhood.

(A) that she
(B) what she
(C) what she would
(D) that she would


Answers: 1- B, 2- D, 3- D, 4- A, 5- D