【名词&注释】
一氧化碳(carbon monoxide)、无动于衷(sit by)、休息日(day off)、自行车钢圈
[单选题]下列做法易使金属被腐蚀的是
A. 用过的菜刀擦干
B. 铝锅盛放酸菜
C. 铁护栏涂上油漆
D. 自行车钢圈镀铬
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举一反三：
[单选题]5. —What kind of movies do you like?—________.
A. I like comedies
B. I like it
C. It s scary
D. It s interesting
[单选题]BJack is a famous writer now．But he said he was not a good student when he was young．He was often late for class and didn’t like doing his homework． Sometimes he slept in class while the teacher was teaching．He didn't understand much, but he always thought he under-stood everything．．
A. John is fifteen now and how old is his brother?" Jack answered, "That's easy． His brother is twice as old as John, so he is now thirty． "
B. see our eyes are in front of our ears?"
C. The third time, the teacher in a biology class asked, "Why can fish swim in the water?" "But, Miss White," said Jack quickly, "don't you know fish can-t walk on land?"
D. Jack was not ________． when he was young．
E. strong
F. lazy
G. clever
H. well
[单选题]．下列各组气体中，不能用燃着的木条区分的是
A. 氧气和空气
B. 二氧化碳和氮气
C. 甲烷和空气
D. 一氧化碳和二氧化碳
[单选题]下列词语中加点字注音完全正确的一项是( )
A. 弥漫(mí) 沉湎(miǎn) 无动于衷(zhōnɡ)
B. 羁绊(jī) 恣睢(suī) 相形见绌(cù)
C. 涟漪(yī) 慰藉(jí) 气吞斗牛(dǒu)
D. 绮丽(qí) 颠沛(pèi) 回环曲折(qū)
[单选题]12．
A. of
B. off
C. away
D. far
[单选题]13．
A. sad ．
B. tired
C. happily
D. happy
[单选题]_____________( )53.
A. and
B. the
C. /
D. to
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