供大家练习，希望能够对大家有所帮助。一起来看！

语法练习：

1. Originally developed for detecting air pollutants， a technique called proton-induced x-ray emission，which can quickly analyze the chemical elements in almost any substance without destroying it， is finding uses in medicine， archaeology， and criminology.

（A） Originally developed for detecting air pollutants， a technique called proton-induced x-ray

emission， which can quickly analyze the chemical elements in almost any substance without

destroying it，

（B） Originally developed for detecting air pollutants， having the ability to analyze the chemical

elements in almost any substance without destroying it， a technique called proton induced x-ray emission

（C） A technique originally developed for detecting air pollutants， called proton-induced x-ray

emission， which can quickly analyze the chemical elements in almost any substance without destroying it，

（D） A technique originally developed for detecting air pollutants， called proton-induced x-ray

emission， which has the ability to analyze the chemical elements in almost any substance

quickly and without destroying it，

（E） A technique that was originally developed for detecting air pollutants and has the ability to

analyze the chemical elements in almost any substance quickly and without destroying the

substance， called proton-induced x-ray emission，

2. None of the attempts to specify the causes of crime explains why most of the people exposed to the alleged causes do not commit crimes and， conversely， why so many of those not so exposed have.

（A） have

（B） has

（C） shall

（D） do

（E） could

3. Computers are becoming faster， more powerful， and more reliable， and so too are modems， they are the devices to allow two or more computers to share information over regular telephone lines.

（A） so too are modems， they are the devices to allow

（B） so too are modems， the devices that allow

（C） so too modems， the devices allowing

（D） also modems， they are the devices that allow

（E） also modems， which are the devices to allow

4. A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.

（A） reduced the amount of phosphates that municipalities had been allowed to dump

（B） reduced the phosphate amount that municipalities had been dumping

（C） reduces the phosphate amount municipalities have been allowed to dump

（D） reduced the amount of phosphates that municipalities are allowed to dump

（E） reduces the amount of phosphates allowed for dumping by municipalities

5. Among the objects found in the excavated temple were small terra-cotta effigies left by supplicants who were either asking the goddess Bona Dea‘s aid in healing physical and mental ills or thanking her for such help.

（A） in healing physical and mental ills or thanking her for such help

（B） in healing physical and mental ills and to thank her for helping

（C） in healing physical and mental ills， and thanking her for helping

（D） to heal physical and mental ills or to thank her for such help

（E） to heal physical and mental ills or thanking her for such help

答案： 1.A 2. D 3. B 4. A 5. A

以上就是本次帮考网和大家分享的全部内容了，好的成绩是坚持不懈的努力得来的，关注帮考网，还有更多有关GMAT考试的练习等着你哦！最后，帮考网祝各位考生考试顺利通过，取得好成绩！