单选题 If you are writing or studying, it makes very much difference where the light comes from. People who use books and pens every day (41) to be especially careful about the direction from which the light shines on their work.
A house gets it's light (42) from daylight through windows (43) is very good to use or from the lamps, but no matter what kind of light it is, the direction it slants(倾斜) towards our books or our work is a matter of great 44 to the eyes.
Take a book,stand with your back toward the window, and try to read. Your shadow falls across the page and makes it bad for your eyes as if you were in a (45) room.
Now turn (46) and face the window. The page is the shadow again,while the bright light is in your (47) . Try standing with your right side towards the window. This is very good for reading, (48) if you were writing,the shadow would (49) the page and trouble you a little.
There is just one other way: stand with your (50) side to the window. Now everything is perfect for reading and for writing, too.

单选题 [A] want [B] have [C] know
【正确答案】 B
【答案解析】考查动词用法。want想要；know知道；have to必须。填入[A]、[C]两项语法虽正确，但意思不符合逻辑。have to实际上是一个情态动词，用在此处含有警告或者忠告的意味。
单选题 [A] either [B] neither [C] none
【正确答案】 A
【答案解析】考查连词固定搭配。由空格后与此处并列的or from…部分即可推知应选either，构成either...or…这一固定搭配，指“要么…，要么…”。
单选题 [A] what [B] who [C] which
【正确答案】 C
【答案解析】考查从句连接词。由句子结构可知，空格后是一个从句，修饰daylight(日光)。而先行同是事物，且连接词在从句中不充当句子成分，因此应用which。
单选题 [A] sorry [B] illness [C] importance
【正确答案】 C
【答案解析】考查名同辨义与上下文理解。由句意及空格前的修饰语great可知，应选importance(重要，重要性)。(be)of great importance to指“对…来说很重要”。
单选题 [A] dark [B] bright [C] small
【正确答案】 A
【答案解析】考查形容词辨义与上下文理解。dark黑暗的；bright明亮的；small小的。由句意、句中的shadow(阴影)、bad(不好的)及as if后所用的虚拟语气不难推知选[A]。
单选题 [A] over [B] around [C] off
【正确答案】 B
【答案解析】考查固定搭配。turn over翻转，打翻；turn around转身，转过来；turn off关上(电器等)。由句意可知，这里是要读者转过身来脸朝窗户，因此选[B]。
单选题 [A] eyes [B] face [C] baek
【正确答案】 A
【答案解析】考查名词与上下文理解。eye眼睛；face脸；back背(部)。由上下文与常识可知，脸朝窗户时，光线会照着眼睛、影响阅读，故选[A]。
单选题 [A] but [B] or [C] so
【正确答案】 A
【答案解析】考查上下文关系。由句意可知，空格前后是明显的对立关系，冈此选表转折的but(然而，但是)。or表选择和让步，指“或者，否则”；so表示因果，指“因此”。
单选题 [A] fall down [B] fall into [C] fall across
【正确答案】 C
【答案解析】考查固定搭配。fall down落下，掉下；fall into落人，陷入；fall across(阴影等)投射在…上。在前文中已经出现过fall across这一搭配，考生应能很快确定答案。
单选题 [A] right [B] left [C] face
【正确答案】 B
【答案解析】考查上下文理解。由于前面提到的是将右边(your right side)朝向窗户，并且分析的是这样做的坏处，这里肯定就是说将左边朝向窗户了，因此选与right对立的left。