4.The movies just wouldn't be the same without the warm buttery taste of popcorn.Amazingly,this delicious treat started its life as a corn kernel(玉米粒)-and not from just any corn.Popcorn is a type of sweet corn that was originally grown in Mexico and spread to China,India and elsewhere.It is the only kind of corn that will pop.Today,most of the world'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 steam.This puts pressure on the surrounding hard kernel,forcing it to explode.The soft starch increases about 40times 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 Mexico.But it wasn't only food.It was also used in ceremonies or in headdresses and necklaces.By 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 breakfast.But it wasn't until the late 1800s that popcorn became popular.The demand for popcorn increased and farmers began farming popcorn.The 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 it.Then in the 1950s television arrived and popcorn consumption decreased.People stayed home and stopped going to the theatre.But the link between movies and popcorn had already existed.Soon people began making popcorn at home on the stove.Later,microwave popcorn was introduced.
Today the movies have regained popularity and popcorn has once again become the favorite.
1.Popcorn was first planted inD.
A.China
B.America
C.India
D.Mexico
2.Why does the corn kernel pop when heated?B
A.Because it is covered with soft starch.
B.Because the pressure inside is too big.
C.Because the starch becomes bigger in size.
D.Because there is water inside the kernel.
3.We can know from the passage thatA.
A.popcorn began to be farmed in the late 1800s
B.popcorn was only a kind of food in the 1500s
C.hot dogs used to be sold by street sellers
D.people stopped going to the movies without popcorn
4.The underlined word"thrived"in the fifth paragraph probably means"D".
A.started to be popular
B.was seriously affected
C.suffered a lot
D.developed very well.
分析 本文主要讲述了起源于墨西哥的甜玉米的发展.后来玉米成为了电影院的宠儿,看电影的人们无一例外的会带它进影院.
解答 1:D 细节理解题.由第一段第三句"Popcorn is a type of sweet corn that was originally grown in Mexico…"可知,爆米花是一种最初生长在墨西哥的甜玉米,故正确答案为D.
2:B 细节理解题.由第二段倒数第二句"This puts pressure on the surrounding hard kernel,forcing it to explode."可知,在硬玉米粒周围施加压力,迫使其爆炸,即玉米粒爆炸是因为内部承受压力很大,B项正确;
3:A 推理判断题.由第四段第二、三句"But it wasn't until the late 1800s that popcorn became popular.The demand for popcorn increased and farmers began farming popcorn."可知,在19世纪爆米花变得很流行,由于爆米花的需求量增加农民才开始种植它,A项正确.由第三段第一句"In the 1500s popcorn was an important food source for the Aztec Indians of central and southern Mexico.But it wasn't only food."可知B项错误.由第四段最后一句中"…and popcorn was sold by street sellers much like hot dogs that are sold today."可知,热狗过去不是在街上买的,事情发生在现在,故C项错误.由本文最后一句"Today the movies have regained popularity and popcorn has once again become the favorite."可知,人们依旧喜欢看电影时吃爆米花,所以D项错误.故正确答案为A.
4:D 词义猜测题.由第五段第一句后半句"as people could still afford it."可知,1930s 时人们还能买得起爆米花,而第二句后半句"popcorn consumption decreased"可知,1950s 时爆米花销售才开始下降,而下降之前,应该是保持好销量,故可推测"thrived"的意思为"兴盛,繁荣",故正确答案为D.
点评 本文是一个科教类阅读理解,题目涉及多道细节理解题,做题时结合原文和题目有针对性的找出相关语句进行仔细分析,结合选项选出正确答案.推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案,切忌胡乱猜测,一定要做到有理有据.