In Boston on April 15.2013.a marathon race was going on an explosion happened．( )A．whileB．whenC．afterD．before 题目和参考答案——青夏教育精英家教网—

题目内容

6．In Boston on April 15，2013，a marathon race was going on _______an explosion happened．（　　）

A．

while

B．

when

C．

after

D．

before

分析在2013年4月15日波士顿，当爆炸发生的时候，一场马拉松比赛正在进行．

解答答案：B 根据 when和while都有"当…时"之意，when既可以跟延续性动词，又可以跟瞬间动词，while只可跟延续性动词，再结合句意，当爆炸发生的时候，一场马拉松比赛正在进行，可知此处happened是瞬间动词，故B正确．be doing…when为固定结构"正在做某事，忽然…"，be about to do…when…正要做某事，忽然；had done sth when 某人刚做完某事时突然…

点评本题考查时间状语从句的连接词，在充分分析句型再结合语义的基础上便能选出正确答案，同时要注意其他选项的意思，

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17．Many kids think that class and learning is boring．It is especially（1）Afor teachers to try to make learning fun．There are certain （2）Dthat you also would assume kids would （3）Bfind interesting．One of them is first aid．Many kids probably think first aid lesson is （4）C．But first aid is an important skill for anyone to learn，including children．So how can a teacher make learning about first aid interesting？
One way to do so is to get the children （5）D．Have them compete to bandage or care for one of their friends．Tell the children that their friend has cuts all over his body and that he needs to be（6）Afor．This can create a very fun situation where one child is covered in bandages．
Set up a （7）Cwhere the children find one of their friends unconscious．Have one child play the unconscious friend．Have the children call 911on a play phone and （8）Bto see if there is a heart rate or breathing．See how quickly they can do all of the necessary tasks and （9）Athem to other groups of children．Make the whole day into a competition with some sort of （10）Dfor the child or group of children that do the best．
Another way to make first aid training （11）Dis to have the kids tell stories about scary times when they thought someone needed first aid．This is a good （12）Bbecause with the children's new learning they can figure out how best to help the person in their story．These sorts of（13）Bwill make first aid learning time fun and exciting．The kids will remember the day when you taught them first aid with fondness，（14）Cthat they will remember what you taught them．Who knows，maybe by making first aid fun you could help to（15）Aa life．

1． A．difficult	B．disappointing	C．strange	D．worrying
2． A．games	B．words	C．ideas	D．subjects
3． A．always	B．never	C．often	D．sometimes
4． A．prepared	B．different	C．boring	D．private
5． A．educated	B．trained	C．focused	D．involved
6． A．cared	B．blamed	C．thanked	D．called
7． A．business	B．connection	C．situation	D．system
8． A．fail	B．check	C．wait	D．stop
9． A．compare	B．introduce	C．expose	D．relate
10．A．protection	B．permission	C．guide	D．reward
11．A．organized	B．simple	C．formal	D．fun
12．A．time	B．activity	C．lesson	D．answer
13．A．questions	B．stories	C．jokes	D．articles
14．A．believing	B．suggesting	C．meaning	D．providing
15．A．save	B．follow	C．lead	D．build．