2015柳州市高考英语阅读理解一轮课外训练训练（1）及答案
【山东省日照市2014高考英语一模试卷】
Clenching your fist could be enough to help you get a grip on your memory．
Research suggests that balling up the right hand and squeezing it tightly actually makes it easier to memorize lists．
Later, when it is time to get back the information，it is the left hand
that should be clenched．It is thought the movements activate brain regions key to the storing and recall of memories．
The American researchers suggest those who are short of a pen and paper should try the trick when attempting to remember a shopping list or phone number．
In the study,volunteers were given a rubber ball and asked to squeeze it as hard as possible before trying to memorize a list of 72 words．
They squeezed the ball again a couple of minutes later,ahead of recollecting as many of the words as possible．
The first group of the volunteers used their right hand on both occasions，and the second group their left．The third group clenched their right fist ahead of memorizing and their left ahead of recall and the fourth did the opposite．The fifth group held the ball but did not squeeze it．
Those who squeezed with their right hand，followed by their left，remembered the most words．
