When considering how to settle the problem, the most important factor-weather, he had ________．

1. A.
   left out
2. B.
   left behind
3. C.
   left off
4. D.
   left over

When considering how to settle the problem, the most important factor-weather, our teacher had ____.

A.left out                    B. left behind                      C. left off                    D. left over

完形填空（共20小题；每小题2分，满分40分）

It’s good to make mistakes, and here is why．

First of all, mistakes are a clear  36 that you are trying new things．It’s always   37  to try new things because when you are trying new things you are   38 ．If you never try anything new, how can you   39 ? The simple answer is “You can’t”．With few exceptions, every single detail of development is the   40 of someone trying something new．

When you are making mistakes, you are  41  ．Edison failed 10,000 times before he   42  the light bulb．When asked how it felt to  43  that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t  44 ．

Finally, when you make a mistake you are much   45  to success．Why ?

When all is done, you will have tried some number of things before you succeed．  46  you make a mistake you eliminate (排除) one of those things and are one step closer．

But this all doesn’t mean that you should go ahead   47  considering the consequences of a mistake．Quite the contrary, when you try something new, you   48   be willing to set some reasonable limits, so that in the event that it doesn’t   49  the way you want it to, you will be in a position to try again．

We all have   50  resources in time and money, so don’t blow them all on one   51  to a problem．Realize that it probably won’t be perfect the first time, and allocate (分配)  these resources properly so you can learn,   52   corrections, and try it again．Only by  53    and using your mistakes in this way, can you make significant  54   in your business or career．

As an old saying goes, “If you’re not making mistakes, you’re not trying hard enough．”

So go  55  and make mistakes．And learn．And grow．And succeed．

1.                A．word          B．sign            C．mark D．signature

2.                A．interesting      B．funny          C．bad  D．good

3.                A．working        B．failing          C．growing  D．playing

4.                A．improve        B．study           C．insist D．think

5.                A．progress        B．result          C．strength  D．experiment

6.                A．learning        B．correcting       C．doing D．promising

7.                A．broke          B．perfected       C．designed  D．bought

8.                A．succeed        B．invent          C．fail  D．struggle

9.                A．work           B．help           C．go   D．perform

10.               A．further         B．closer          C．familiar    D．interested

11.               A．Only if         B．Even though     C．Every time D．As if

12.               A．with           B．without         C．into  D．through

13.               A．want to         B．lead to         C．tend to    D．have to

14.               A．work out       B．put out         C．run out    D．sort out

15.               A．enough        B．much          C．limited    D．little

16.               A．way           B．approach       C．means D．suggestion

17.               A．make          B．follow          C．take  D．offer

18.               A．trying          B．avoiding        C．accepting  D．receiving

19.               A．use            B．contribution     C．money    D．advances

20.               A．back           B．forth           C．off   D．out