北京新航道致力于为广大考生提供托福培训以及托福考试资讯。近些年来，托福考试越演越烈，家长都希望送孩子出国深造，为了将来的发展和自身的锻炼。托福考试也几经变革，但是总也离不开听说读写几个部分。其中，词汇是基础，贯穿于始终，是一门语言的敲门砖，掌握好词汇是托福考试的步。为了地帮助考生记忆词汇，北京新航道小编为大家整理汇集了一些词汇练习题，正所谓实践出真知，希望大家在做题的过程中加强对词汇的理解和掌握。

　　153. The steel wires used are galvanized-coated with zinc to make them rustproof. The two wires that make up the line wire or cable are fed separately into a machine at one end. They leave it at the other end twisted together and barbed.

　　The word "fed" is closest in meaning to which of following?

　　(A) put

　　(B) eaten

　　(C) bitten

　　(D) nourished

　　154. The pressure exerted on the human body increases by 1 atmosphere for every 10 meters of depth in seawater, so that at 30 meters in seawater a diver is exposed to a pressure of about 4 atmospheres.

　　The words "exposed to" in line 6 are closest in meaning to

　　(A) leaving behind

　　(B) prepared for

　　(C) propelled by

　　(D) subjected to

　　155. Deep dives are less dangerous if helium is substituted for nitrogen, because under these pressures helium does not exert a similar narcotic effect.

　　The word "exert" is closest in meaning to which of following?

　　(A) cause

　　(B) permit

　　(C) need

　　(D) change

　　156. As a scuba diver descends, the pressure of nitrogen in the lungs increases. Nitrogen then diffuses from the lungs to the blood, and from the blood to body tissues.

　　The word "diffuses" is closest in meaning to which of following?

　　(A) yields

　　(B) starts

　　(C) surfaces

　　(D) travels

　　上面是几道词汇题，大家都会了么?其实词汇掌握并不难，通过做题是的方法。在语境中体会词汇的用法才能掌握的更牢靠。祝大家取得好成绩。

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