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托福考試試題(二)
無(wú)論在學(xué)習(xí)或是工作中，我們都經(jīng)�？吹皆囶}的身影，借助試題可以檢測(cè)考試者對(duì)某方面知識(shí)或技能的掌握程度。還在為找參考試題而苦惱嗎？下面是小編整理的托�？荚囋囶}(二)，希望能夠幫助到大家。
試題1：
Section 2
Structure and Written Expression Time--25 minutes
The Structure and Written expression section is designed to measure your ability to recognize language that is appropriate for standard written English.There are two types of questions in this section, with special directions for each type.
Structure
Directions: Questions 1-15 are incomplete sentences.Beneath each sentence you will see four words or phrases, marked (A), (B), (C),and (D).Choose the one word or phrase that best completes the sentence.Then, on your answer sheet, ifnd the number of the question and fill in the space that orresponds to the letter of the answer you ahve chosen Fill in the space so that the letter inside the oval cannot be seen.
Look at the following examples:
Example I
For many centuries---the principal raw material Sample answer
for making ropes and sails.
(A) then was hemp
(B) the time hemp was
(C) hemp was
(D) hemp
The sentence should read, "For many cenries hemp was the principle raw material for making ropes and sails." Therefore, you should choose (C).
Example II
The sea anemone, a marine animal related to the jelly fish, Sample answer
looks like a plant----like other animal species.
(A) so
(B) rather than
(C) instead
(D) rather not
The sentence should read, "The sea anemone, a marine animal related to the jelly fish, looks like a plant rather than like other animal species." Theerefore, you should choose (D).
Nowbegin work on the questions.
1.Most substances expand when they evaporate so that the density of a substances gas is---of its liquid.
(A) than the lower density
(B) lower than that
試題2：
if the salinity of ocean waters is analyzed， it is found to vary only slightly from place to place.nevertheless， some of these small changes are important.there are three basic processes that cause a change in oceanic salinity.one of these is the subtraction of water from the ocean by means of evaporation conversion of liquid water to water vapor.in this manner， the salinity is increased， since the salts stay behind.if this is carried to the extreme， of course， white crystals of salt would be left behind.
the opposite of evaporation is precipitation， such as rain， by which water is added to the ocean.here the ocean is being diluted so that the salinity is decreased.this may occur in areas of high rainfall or in coastal regions where rivers flow into the ocean.thus salinity may be increased by the subtraction of water by evaporation， or decreased by the addition of fresh water by precipitation or runoff.
normally， in tropical regions where the sun is very strong， the ocean salinity is somewhat higher than it is in other parts of the world where there is not as much evaporation.similarly， in coastal regions where rivers dilute the sea， salinity is somewhat lower than in other oceanic areas.
a third process by which salinity may be altered is associated with the formation and melting of sea ice.when seawater is frozen， the dissolved materials are left behind.in this manner， seawater directly beneath freshly formed sea ice has a higher salinity than it did before the ice appeared.of course， when this ice melts， it will tend to decrease the salinity of the surrounding water.
in the weddell sea， off antarctica， the densest water in the oceans is formed as a result of this freezing process， which increases the salinity of cold water.this heavy water sinks and is found in the deeper portions of the oceans of the world.
1.What does the passage mainly discuss？
A.the elements of salt
B.the bodies of water of the world
C.the many forms of ocean life
D.the salinity of ocean water
2.The word this in line 5 refers to
A.ocean
B.evaporation
C.salinity
D.crystals
3.According to the passage， the ocean generally has more salt in
A.coastal areas
B.tropical areas
C.rainy areas
D.turbulent areas
4.All of the following are processes that decrease salinity except
A.evaporation
B.precipitation
C.runoff
D.melting
5.Which of the following statements about the salinity of a body water can best be
inferred from the passage？
A.the temperature of the water is the most important factor.
B.the speed with which water moves is directly related to the amount of salt.
C.ocean salinity has little effect on sea life.
D.various factors combine to cause variations in the salt content of water.
6.The word altered in line 16 is closest in meaning to
A.determined
B.changed
C.accumulated
D.needed
7.The world it in line 18 refers to
A.sea ice
B.salinity
C.seawater
D.manner
8.Why does the author mention the weddell sea？
A.to show that this body of water has salinity variations
B.to compare antarctic waters with arctic waters
C.to give an example of increased salinity due to freezing
D.to point out the location of deep waters
9.Which of the following is not a result of the formation of ocean ice？
A.the salt remains in the water.
B.the surrounding water sinks.
C.water salinity decreases.
D.the water becomes denser.
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