We got up early this morning and (21)________ a long walk after breakfast. We walked (22)________ the business section of the city. I told you that the city (23)________ larger than I thought it would be. Well, the business section is smaller than I thought it would be. I suppose that's (24)________ Washington is special kind of city. (25)________ of the people in Washington work for the government.
About 9:30 we went to the White House. It's (26)________ the public from 10 (27)________ 12, and there was a long line of people (28)________ to get in. We didn't have to wait very long, because the line moved pretty quickly.
The White House is really white. It (29)________ every year. And it seems very white, because it's got beautiful lawns (30)________ around it, with many trees and shrubs. The grounds (31)________ about four square blocks. I mean, they're about two blocks long. (32)________ each side.
Of course, we didn't see the whole building. The part (33)________ the President lives and works is not open to the public. But the part we saw was beautiful. We went through five of the main rooms. One of (34)________was the library, on the ground floor. On the next floor, there are three rooms named (35)________ the colors that are used in them: the Red Room, the Blue Room, and the Green Room. The walls are covered with silk (36)________. There are (37)________ old furniture, from the time (38)________ the White House was (39)________ built. And everywhere there are paintings and statues of former presidents and (40)________ famous people from history.
横线后为walk，take a walk散步，固定搭配，所以选B。
考查介词的使用。意为我们穿过城市的商业区。介词through为从……里穿过，所以选B。
考查宾语从句的时态。因为此处前的动词为told，过去时，所以 宾语从句也要为过去时态，选was。
根据选项可知，此处表原因且需要能引导其后的句子作表语。 because可引导原因状语做表语，所以选C。
根据选项可知此空需要表示数量的词。注意横线后的名词为of the people，名词前有定冠词修饰。选项里只有most可以搭配带定冠词的名词，所以答案选D。
表示“对公众开放”，open可以做形容词表示“公开的”，be open to固定搭配，所以选A。
from...till...可以表示“从……到……”。towards朝，向，对于。其 余三项都不与from搭配。所以答案选D。
考查there be+名词+动词结构中动词的形式。现在分词表示主动 关系，同时表示动作正在进行。综上可知，应该选择waiting。
这里需要注意的是横线后的every year，every year是一般现在使 的标志，所以此处的动词应该选择一般现在时，且为被动，所以选 C。
句意为“周边全是漂亮的草地”，表示“全部的”含义，而且此处 需要填写副词，所以只有all最符合，答案选A。
句意：这些绿地占据了四个方块的面积。cover表示“占地……”的含义，所以选A。
on each side固定搭配，“在每一边”。答案选B。
由横线前后可知，这里需要在定语从句中做地点状语的引导词，即表示“总统所居住的区域”，所以答案选C。
前文提到作者穿越了五大堂屋。之后介绍“其中一间是图书 馆……”，所以此处需要填写指代main rooms的代词。综上可知，答案选D。
name sth. after sth.以……给……命名。这里的意思是有三间屋子是以所涂的颜色命名的。答案选D。
silk cloth丝绸。句意为墙上都以丝绸覆盖，另外三项都指衣服，服装，与句意不符，所以答案选A。
这里考查量词的用法。furniture为不可数名词，表示“一件家 具”时，使用的量词为piece，a piece of furniture一件家具，所以本题选A。
the time 为先行词，在定语从句中做时间状语，所以定语从句用 when引导，选C。
考查first几种变形的区别。结合句意可知，要表达的意思为“最 初”。first可作副词，除表示“先……（后……）”外，还可表示“最 先”“第一次”“首先”等。firstly第一，首先。通常用于列举条目、顺序 等。at first 的意思是“起初”“开始”，它主要用于强调前后对照，暗示 接下去的动作与前面的动作不同甚至相反，因此常有but, afterwards, soon, at last 等相呼应。early明显不符合题意。综上可知，first最符合句意，答案选B。
词义辨析。other意思是“另外的，其他的”，修饰复数名词。the other通常指两个中的“另一个”。others泛指“另外的人或物”。这里表 示的是“前总统和其他历史名人”，需修饰名词用，所以选other，答案选B。