Chen Guangbiao is reported billions of yuan to people in Taiwan and the mainland so far．( )A．to donateB．donatingC．to have donatedD．having donated 题目和参考答案——青夏教育精英家教网—

3．A strong memory depends on the health and vitality （活力） of your brain．They say that you can't teach an old dog new tricks，but when it comes to the brain，scientists have discovered that this old saying simply isn't true．（36）GGive your brain a workout．Memory，like muscular strength，requires you to"use it or lose it"．The more you work out your brain，the better you'll be able to process and remember information．（37）FDon't skip the physical exercise．While mental exercise is important for brain health，that doesn't mean you never need to break a sweat．Physical exercise helps your brain stay sharp．It increases oxygen to your brain and reduces the risk for disorders that lead to memory loss．
Get enough sleep．There is a big difference between the amount of sleep you can get by on and the amount you need to function at your best．（38）EKeep stress in check．Stress is one of the brain's worst enemies．Over time，stress destroys brain cells．Studies have also linked stress to memory loss．
Have a laugh．（39）CThat holds true for the brain and the memory，as well as the body．Unlike emotional responses，which are limited to specific areas of the brain，laughter engages multiple regions across the whole brain．（40）A
Just as the body needs fuel，so does the brain．You probably already know that a diet based on fruits，vegetables，whole grains，"healthy"fats and lean protein will provide lots of health benefits，but such a diet can also improve memory．For brain health，though，it's not just what you eat-it's also what you don't eat．

A．Eat a brain-boosting diet．
B．Play games with memory．
C．Laughter is the best medicine．
D．But oversleeping is not good for your brain．
E．Even skipping a few hours makes a difference!
F．You have to shake things up from time to time!
G．The human brain has an astonishing ability to adapt and change．

1．As I held my father's hands one night，I couldn't help but notice their calluses（老茧）and roughness．His hands tell the story of his life as a（16）C，including all his struggles．
     One summer，I remember，a drought （旱灾）hit Ontario，turning it into a（17）Ddesert．On one of those hot mornings I was picking sweet corn with my dad to fill the last（18）Afrom the grocery store．Fifty dozen was all we needed，which（19）Btook twenty minutes．That morning，however，the process didn't（20）Aquickly．After forty minutes of aimlessly walking in the field，we（21）Bneeded twenty dozen．I was completely frustrated and（22）C．Dropping the basket heavily，I declared，"If the store wants its last twenty dozen，they can pick it themselves1"Dad （23）D"Just think，my little girl，only ten dozen left for each of us and then we're（24）B．"Such is Dad--whatever problem he（25）A，he never gives up．（26）C，the disastrous effects of the drought were felt all over our county．It was a challenging time for everyone，（27）DDad remained optimistic．He（28）Cto be grateful for other things like good health and food on our plated．Only then did I truly begin to（29）BDad and his faith that guided us through the hard times．
     Dad is also a living example of real（30）A．From dawn to dusk，he walks countless hours to（31）Aour family．He always puts our happiness（32）Bhis own，and never fails to cheer me on at my sports games（33）Ahis exhaustion after long days．His loving and selfless nature has inspired me to become more sympathetic and（34）Cputting others first．
     Dad，the life（35）DI have learned from you will stay with me forever．You are my father，teacher，friend and，most importantly，my hero．

16．A．teacher	B．gardener	C．farmer	D．grocer
17．A．stormy	B．lively	C．disappearing	D．burning
18．A．order	B．form	C．gap	D．position
19．A．repeatedly	B．normally	C．finally	D．really
20．A．go	B．begin	C．occur	D．change
21．A．yet	B．still	C．even	D．nearly
22．A．surprised	B．nervous	C．angry	D．frightened
23．A．apologized	B．cried	C．complained	D．laughed
24．A．lost	B．done	C．gone	D．touched
25．A．meets with	B．brings up	C．works out	D．thinks about
26．A．Thankfully	B．Hopefully	C．Unfortunately	D．Strangely
27．A．or	B．for	C．so	D．but
28．A．happened	B．seemed	C．continued	D．aimed
29．A．face	B．appreciate	C．examine	D．question
30．A．love	B．pride	C．friendship	D．honesty
31．A．support	B．settle	C．start	D．impress
32．A．after	B．before	C．beside	D．under
33．A．in spite of	B．in terms of	C．in control of	D．in place of
34．A．careful	B．regretful	C．considerate	D．humorous
35．A．history	B．motto	C．patterns	D．lessons