2.Many teachers believe that hands-on experiences is the (61)best (good) way to learn.A group of students in the United States are putting that belief to the test.They (62)successfully(success) designed and built a robot for discovering unexploded mines(63)at the bottom of the sea.Students made the robot (64)to answer  (answer) a challenge from the U.S.Department of Defense.
The students recently tested the underwater vehicle (65)called (call) Perseus II in a 95-meter-long tank of water at the Stevens Institute of Technology.
The robot costs about 15,000to build.The students use a video game controller to direct its(66) movements (move) in the tank.What's more,devices know as Japters (67)enable (able) the robot to go up,down and toward its target in the water.Video cameras on the robot send images back to a computer through a 13-meter-long cable.Perseus II also has (68)aset of lasers(激光),which are used to measure the size of an object.
The robot is the creation of five undergraduate students.For over six months,they worked up(69)to20hours a week to design and build Perseus II.
DeLome supervised the project from the(70)beginning(begin) to the end.He says the specialized requirements of robot were demanding.

分析 許多老師認為實際操作是最好的學(xué)習(xí)方式,一群美國的學(xué)生對此進行了檢測.

解答 61.best  考查形容詞最高級.根據(jù)題意可以推測最好的學(xué)習(xí)方法是實踐操作,故‘good'最高級形式為"best".
62.successfully 考查詞性轉(zhuǎn)換.根據(jù)此句看出,所填詞用來修飾"designe"為動詞,故用副詞"successfully"來修飾.
63.a(chǎn)t  考查介詞."at the bottom of"為固定短語,意為"在…底部".
64.to answer  考查不定式.根據(jù)上下文,此處不定式表示目的狀語,意為"為了響應(yīng)美國國防部的一個挑戰(zhàn)".
65.called  考查非謂語動詞.本句的主干為"The students recently tested the underwater vehicle",故"called"為過去分詞做定語修飾"the underwater vehicle"表示被動,即"被稱做…".
66.movements  考查詞性轉(zhuǎn)換.由"its"可知后需加一個名詞,故"move"的名詞形式為"movements".
67.enable   考查動詞.該句主語為"devices","know as Japters"為過去分詞修飾主語,故所填詞為句子謂語,將"able"變成動詞形式"enable"意為"使…能夠做…".
68.a(chǎn)  考查冠詞.考查固定短語"a set of"意為"一套…".
69.to  考查介詞.up to 多達.
70.beginning   考查名詞.此處"the"后需加一個名詞,另外,"from the beginning to the end"為固定短語,意為"從開始到最后".

點評 語法填空題.此題話題學(xué)生不太熟悉,可能難度有點.但是考試需首先瀏覽全文,然后聯(lián)系上下文并注意一些詞性的相互轉(zhuǎn)換,以及一些固定短語的搭配.

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