托福考试试题(二)

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托福考试试题(二)

　　无论在学习或是工作中，我们都经常看到试题的身影，借助试题可以检测考试者对某方面知识或技能的掌握程度。还在为找参考试题而苦恼吗？下面是小编整理的托福考试试题(二)，希望能够帮助到大家。

托福考试试题(二)

　　试题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

　　(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

　　(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

　　试题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