坚持学英语的第41天
1*I know him very well because we____ friends for ages.
A. are
B. were
C. had been
D. have been
for ages 许多年
答案是D，know 原形代表一般现在时，后面的许多年表示从过去到现在，现在完成时
2*Jiao Yulu ____ a lot of good deeds for others in his life.
A. has done
B. did
C. was doing
D. had done
答案是B。他的一生就是过去，不是过去的过去，也不是从过去到现在，一般过去时。焦裕禄一生中做了许多好事。
3* Mary had to _____ her job after her marriage.
A. give away
B. give in
C. give off
D. give up
答案是D，give up 放弃
4* I know Mr Brown； we ＿ to each other at an international conference.
A. are introduced
B. have been introduced
C. were introduced
D. had been introduced
introduce 介绍
答案是C，一般过去时的被动语态
introduce 动词，介绍
conference 名词，会议
5*One-third of the area _______ covered with green trees. About seventy percent of the trees _______ been planted.
A. are; have
B.is; has
C.is; have
D. are; has
答案是C，one third of the area 主语是area ，地区，单三，第二个横线主语是trees，复数
6* If nothing _____, the oceans will turn into fish deserts.
A. does
B. had been done
C. will be done
D. is done
答案是D，主将从现，事情被做
7* If they are burned，they _____ poisonous gases.
A. give away
B. give in
C. give off
D. give over
答案是C，句子意思要是看不懂就没法选了
burn 点燃；poisonous 有毒的
gas 气体；give off 散发出
8*In 1492, Columbus____ on one of the Bahama Islands, but he mistook it for an island of India.
A. lands
B. landed
C. has landed
D. had landed
答案是B，in 1492，在1492年，明确表示过去的词，一般过去时。1492年，哥伦布在巴哈马群岛登陆。
land 动词，着陆，登陆
9* — Bob has gone to California.
— Oh, can you tell me when he _________?
A. has left
B. left
C. is leaving
D. would leaving
答案是B。什么时候一定是过去的某个时间，一般过去时。
Bob 去了加州。
你知道他什么时候走的吗？
10* Hardly _____ the airport _____ he started for Wuhan.
A. I had reached; when
B. had I reached; than
C. had I reached; when
D. had I reached to; than
答案是C，去笔记上找hardly ……when ……
11* —Excuse me, Mum. When can we have dinner?
—Not until it _______ in half an hour.
A. is prepared
B. will be prepared
C. had been prepared
D. prepares
答案是A。主将从现
We can't have dinner until it is prepared in half an hour.
这是完整的句子，题里面是省略了主句，考了从句
in half an hour 半小时以后。in +一段时间，表示多长时间以后
12* ＿＿＿ Betty this morning?
—— Not yet, but she is sure to be here before noon.
A. Have you seen
B. Will you see
C. Do you see
D. Did you see
答案是A，过去对现在造成的影响，现在完成时。这道题有个简单方法，只要答语是not yet （还没），问句就选现在完成时
今天早上你见过贝蒂吗？
你问这个问题的目的是想知道贝蒂现在在哪
1*---Did you go to the show last night?
—Yeah. Every boy and girl in the area _____ invited.
A. were
B. have been
C. has been
D. was
答案是D，every 开头的句子，主语是单三。last night 昨天晚上，明确表示过去的词，一般过去时。
2*We ________ our car two years ago and we ________ it six thousand miles since then．
A.had bought; drove
B.have bought; drove
C.bought; have driven
D.bought; had driven
答案是C。two years ago 两年前，明确表示过去的词，一般过去时，since then 从那时起，从过去到现在，现在完成时。
3* --Have you got your test result?
—Not yet. The papers ________.
A. are not correcting
B. have not corrected
C. are still being corrected
D. have already been corrected
答案是C，根据意思判断时态
你知道考试结果了吗？
还没。卷子正在被判
现在进行时的被动语态
result 名词，结果。correct 动词 纠正，改正，订正
4*That piece of music sounds quite familiar. Who _________the piano upstairs?
A. has played
B. played
C. plays
D. is playing
答案是D。谁在楼上弹钢琴？现在进行时。familiar 形容词，熟悉的；
upstairs 副词，在楼上
5* No one can possibly recall any detail about the meeting. It is at least five years since it ___.
A. has taken place
B. was taken place
C. took place
D. was taking place
答案是C，take place 发生，没有被动，since 后面的从句用一般过去时。
recall 动词，回想起
detail 名词，细节
