然后详细描述他们一家人这一天的活动，因此B项"讲述这一家人如何过感恩节"能概括全文大意。]

　　2．On Thanksgiving Day the author's family do the following except .

　　A．watch a movie　　　　B．make visits

　　C．have a big meal D．watch football

　　A　[细节理解题。文章前四段描述作者一家人准备感恩节大餐，最后一段首句"Eventually，though，we all finish our short prayers and dig in."说明一家人终于开吃了，首先排除C项；再由第二句"To be sure，the day includes other highlights－visiting with family and watching football."可知，这一天作者一家人还会走访亲友以及观看足球赛等，故排除B、D两项；文章没有提及A项活动，所以选A。]

　　3．Why does the author's mind usually go blank when saying a prayer of thanks?

　　A．He is too thankful to say a word.

　　B．His mind is on the food before him.

　　C．He feels too excited to speak.

　　D．He is too shy to speak in public.

　　B　[细节理解题。根据第四段信息"I think it has something to do with my growling(咕咕叫)stomach and all of that food sitting right there under my nose."可知，作者吃大餐之前祈祷以示感恩时，心思全被眼前的美食所吸引，所以B项正确。]

　　4．The underlined phrase "dig in" in the last paragraph is closest in meaning to " "．

　　A．chat with others B．make a hole

　　C．mix things up D．start eating

　　D　[词义猜测题。根据前文对一家人准备大餐以及作者心思全被眼前的美食所吸引的描述，再看本句中的Eventually"终于"一词，不难看出dig in在此表示(一家人)"开吃"了。]