77. [2010·保定市高三二模]When_____about his comments on the mine accident,the boss said much remained to be done to make it clear.

　 A.asking　　　　　 B.asked

　 C.being asked　　　 D.to be asked

77B考查过去分词的用法及状语从句的省略。主从的主语一致，所以被省略。此处the boss和ask之间为被动关系。故用过去分词。

76. [2010·河北唐山市三模]A simple 45-minute operation　　　 by scientists is hoped to cure blindness in six years.

A. being developed　 B.developed　 C. to develop　 D. developing

76A考查非谓语动词的用法。此处现在分词的被动式作定语，表示动作正在进行。句意：科学家们正在研发的一种简单的45分钟的手术有望在6年后治愈失明。

75. [2010·河北唐山市三模]These books tell moving stories　　 　to lift the spirits of readers.

A. meant　 B. planned　 C. thought　 D. managed

75A考查过去分词的用法。此处考查短语be meant to do得做。。。，必须做。。。。此句可改为moving stories which is meant to lift the spirits of readers.意为：动人的故事必须能提高读者的精神。

74．[2010·北京西城二模]　　　 the two designs ,and you will find what problem there is with yours.

　　　 A．Comparing　　　　　 B．Compared　　　　　　 C．To compare　　　　 D．Compare

74D考查祈使句的用法。And前的祈使句句首用动词原形。

73．[2010·成都三诊]The fire caused by the dry climate, which proved later the strongest one in the area, 　　　　quickly, and destroyed the forest.

　　　 A．to spread　　　　　　 B．spreading 　　　　　 C．spread　　　　　　　　 D．to have spread

73C考查谓语动词的形式。此处proved，spread和destroyed为并列谓语。

72．[2010·海南五校联考]---How can we reduce CO2 in our home?

　 ---It’s easy．　　　 off your TV or computers when you’re not using them, and you’ll greatly reduce it．

　　　 A．Turn　　　　　　　　　 B．To turn　　　　　　　　 C．Turning　　　　　　　 D．Turned

72A考查句首动词的形式及祈使句。本句为祈使句句首动词用原形。

71.(2010·吉林市普通中学届高三下学期期中教学质量检测)　 6. Mother told Jim to watch the milk until it boiled and then _________ off the gas.

A. turn　　　　　 B. turning　　　 C. turned D. having turned

71A考查非谓语动词的用法。turn 与watch并列，省略to。

70．[2010·江西省五校联考]It is fairly common in Africa for _______ a group of musicians surrounded by others who also join in the performances.

A. there are　　 B. there being　 C. there to be　 D. there be

70C考查there be句型动词不定式的复合结构形式。此处it是形式主语，介词for后应用there to be结构，故选C。

69. [2010·河北邢台市第二次模拟]Great attention must be paid to　 agriculture, especially in China,　 population is the largest in the world.

A.develop; which　　 B.develop; whose

C.developing;which　 D．developing;whose

69D考查动名词及定语从句。第一空to是介词，其后用动名词；第二空是whose引导的非限制性定语从句。

68. [2010·河北邢台市第二次模拟] Several students in our class are considering　 to the United Kingdom for further study next year.

A.going　　 B. to go　　 C．go　　 D．gone

68A考查动名词的用法。解题关键：掌握consider的用法，consider作“考虑”解时，接动名词作宾语。