TOEFL Practice Tests 18

Trình độ TOEFL - Bài 18

1. It is generally true that the lower the stock market falls, ________ .
(A) higher the price of gold rises
(B) the price of gold rises high
(C) the higher the price of gold rises
(D) rises high the price of gold
2. Because aluminum is lighter and cheaper ________, it is frequently used for high-tension power transmission.
(A) as copper
(B) than copper
(C) for copper
(D) more copper
3.
Within an area of only 100 miles, Death Valley sinks to 282 feet below
sea level while Mount Whitney ________ to a height of 14,494 feet.
(A) soaring
(B) soar
(C) soared
(D) soars
4. A good teaching technique for ________ students active is group work.
(A) keeping
(B) keep
(C) to keep
(D) kept
5. Isaac Newton, ________, made his discoveries about gravity nearly 300 years ago.
(A) he was an English scientist and philosopher
(B) being an English scientist and philosopher
(C) was an English scientist and philosopher
(D) an English scientist and philosopher
6. George would certainly have attended the proceedings ________.
(A) if he didn't get the flat tire
(B) if his flat tire hadn't happened
(C) had he not had a flat tire
(D) had the tire not flattened itself
7. Ancient civilizations such as the Phoenicians and the Mesopotamians ________ goods rather than use money.
(A) use to trade
(B) is used to trade
(C) used to trade
(D) was used to trade
8. The television programs we allow ________ to watch influence their learning.
(A) a children
(B) our children
(C) our child
(D) their childs
9. Helen Keller lost both her sight and hearing after a severe illness ________.
(A) of her age in 19 months
(B) she was 19 months old
(C) when she was 19 months old
(D) when 19 months old she was
10. The most exact way known to science ________ the age of artifacts is based on the radioactivity of certain minerals.
(A) for to determine
(B) for determine
(C) for determining
(D) to determining
11. Studs Turkel has used what he learned ________ to produce taped oral histories of people and events.
(A) when was he a radio talk show host
(B) he was a radio talk show host when
(C) when he was a radio talk show host
(D) a radio talk show host when he was
12. One of the least effective ways of storing information is learning ________ it.
(A) how repeat
(B) repeating
(C) to repeat
(D) repeat
13. The theory of Continental Drift assumes that there ________ long-term climatic changes in many areas during the past.
(A) must have been
(B) must be
(C) must have
(D) must
14. Water is ________ that it generally contains dissolved materials in greater or lesser amounts.
(A) such an excellent solvent
(B) such excellent a solvent
(C) such a excellent solvents
(D) a such excellent solvent
15. From 1926 until her death, Margaret Mead ________ New York's American Museum ofNatural History.
(A) was associated with
(B) associates with
(C) is associated with
(D) associated
16. "The Good Earth", ________, is a novel set in China.
(A) which by Pearl Buck
(B) which was written by Pearl Buck
(C) was written by Pearl Buck
(D) Pearl Buck being the one who wrote it
17. In medieval times ________ his enemy to fight by throwing down his gauntlet.
(A) the challenge
(B) a man made a challenge
(C) a man challenged
(D) his challenge
18. Although most cats hate to swim, ________ if necessary.
(A) can they do so
(B) so can they do
(C) they do so can
(D) they can do so
19. Scientists believe that the beaver's instinct to build dams is more complex than ________ other animal instinct.
(A) most
(B) all
(C) any
(D) these
20. The president usually ________ unless his press secretary approves it.
(A) doesn't do a statement
(B) doesn't make a statement
(C) doesn't statement
(D) no statement