【文章內(nèi)容簡(jiǎn)介】 arge nets over them，taking hundreds at a birds were shipped to large cities and sold in restaurants.By the closing decades of the 19th century，the hardwood forests where passenger pigeons nested had been damaged by Americans39。 need for wood，which scattered(驅(qū)散)the flocks and forced the birds to go farther north，where cold temperatures and spring storms contributed to their the great flocks were gone，never to be seen again.In 1897，the state of Michigan passed a law prohibiting the killing of passenger pigeons，but by then，no sizable flocks had been seen in the state for 10 last confirmed wild pigeon in the United States was shot by a boy in Pike County，Ohio，in a time，a few birds survived under human last of them，known affectionately as Martha，died at the Cincinnati Zoological Garden on September 1,1914.【語篇導(dǎo)讀】　本文敘述了旅鴿逐漸消失的過程。1．In the 18th and early 19th centuries，passenger pigeons ________.A．were the biggest bird in the world B．lived mainly in the south of AmericaC．did great harm to the natural environmentD．were the largest bird population in the US解析　事實(shí)細(xì)節(jié)題。根據(jù)文章第一段所述在18和19世紀(jì)，美國(guó)大群的旅鴿飛起來可以遮住天空幾個(gè)小時(shí)，所以美國(guó)旅鴿的數(shù)量是最大的，故選D。答案　D2．The underlined word“undoing”probably refers to the pigeons39。 ________.A．escape B．ruinC．liberation D．evolution解析　詞義猜測(cè)題。根據(jù)文章第三段中“Where the birds were abundant...by the thousands”可知旅鴿遭到捕殺，所以ruin和undoing詞義相似，故選B。答案　B3．What was the main reason for people to kill passenger pigeons?A．To seek pleasure. B．To save other birds.C．To make money. D．To protect crops.解析　事實(shí)細(xì)節(jié)題。根據(jù)文章第二段中“Commercial hunters attracted them...sold in restaurants”可知旅鴿遭到捕殺的主要原因是捕殺者要賺錢。故選C。答案　C4．What can we infer about the law passed in Michigan?A．It was ignored by the public.B．It was declared too late.C．It was unfair.D．It was strict.解析　推理判斷題。根據(jù)文章最后一段中“In 1897，the state of...for 10 years”可知通過法律后的10年，鴿群數(shù)量仍然不多，所以制定法律為時(shí)已晚，故選B。答案　B閱讀下列短文, 從給的四個(gè)選項(xiàng) (A、B、C和D) 中, 選出最佳選項(xiàng)。 體裁：議論文　話題：歷史故事　時(shí)間：6分鐘The movies just wouldn39。t be the same without the warm buttery taste of ，this delicious treat started its life as a corn kernel(玉米粒)—and not from just any is a type of sweet corn that was originally grown in Mexico and spread to China，India and is the only kind of corn that will ，most of the world39。s popcorn is grown in the United States.Every popcorn kernel contains a tiny drop of water，surrounded by soft starch(淀粉)．When the popcorn is heated，the water turns into puts pressure on the surrounding hard kernel，forcing it to soft starch increases about 40 times in size as the corn kernel turns itself inside out.In the 1500s popcorn was an important food source for the Aztec Indians of central and southern it wasn39。t only was also used in ceremonies or in headdresses and the time the Europeans arrived in America，popcorn had spread through most of the American Indians.Some early American settlers ate popcorn with cream and sugar for it wasn39。t until the late 1800s that popcorn became demand for popcorn increased and farmers began farming first mobile popping machine was invented in 1885，and popcorn was sold by street sellers much like hot dogs are sold today.During the Great Depression of the 1930s，the popcorn business still thrived as people could still afford in the 1950s television arrived and popcorn consumption stayed home and stopped going to the the link between movies and popcorn had already people began making popcorn at home on the ，microwave popcorn was introduced.Today the movies have regained popularity and popcorn has once again bee the favorite.【語篇導(dǎo)讀】　沒有溫?zé)嵯闾鸬谋谆?，電影似乎也?huì)失去味道吧。那么，關(guān)于爆米花你又了解多少呢？1．Popcorn was first planted i