题目内容
13.There are 115distinct (独特的) species of pine trees with 35native to North America.Pines are defined as evergreens with long,needle-like leaves and are only native to the northern hemisphere.Pine trees are an adaptable and tough species that can survive in many conditions where other plants cannot.The average pine tree is 45to 60feet tall,but some are nearly twice as high.Western White Pine
The western white pine grows the tallest of any pine tree,reaching up to 110feet in height.They have blue-green needles arranged in bundles (束) of five and produce a long cone (球果).
Bristlecone Pine
The bristlecone pine grows slowly,reaching about 20feet tall.It is one of the oldest species of pine.
Mexican Pine
The Mexican pine can grow to 50feet tall,with long,slender needles that drape (下垂) off it like a weeping willow (柳树).Often nicknamed the"willow pine",it is native to Mexico.Its leaves can droop up to 12inches long.
Sugar Pine
The sugar pine is another of the large pine species,such as the bull pine,but it also has the largest cones of any pine species,at 10to 20inches long.It grows from Oregon to California and is often used for construction.
Jack Pine
The jack pine is one of the smallest species of pine with rare leaves.Compared with the pines mentioned above,it doesn't seem to belong in the family.It is considered a member of the scrub-pine family; it prefers sandy soil.
41.From the first paragraph,we know that pinesB.
A.are native to North America
B.are very adaptable
C.can grow to 60feet tall at most
D.usually grow in tough conditions
42.Which of the following pines is often used as a building material?C
A.The Mexican pine
B.The bristlecone pine
C.The sugar pine
D.The jack pine
43.The Mexican pineC.
A.is the oldest species of pine
B.produces a long cone
C.has willow-like needles
D.prefers sandy soil
44.We can learn from the passage thatB.
A.the Mexican pine has the longest leaves
B.the jack pine doesn't seem to belong to the same family as the other pine trees
C.the bull pine is a kind of little pine tree
D.all the pine trees mentioned have a great number of leaves.
分析 有115种独特品种的松树,其中35种原产于北美洲.松树常绿,是适应性很强并且坚强的物种,在许多条件下都能生存下来.文章详细介绍了5种不同的松树.
解答 A篇41---44 BCCB
41.B 细节理解题.排除法.选项A,从文中第一段There are 115 distinct(独特的)species of pine trees with 35 native to North America.有115种独特品种的松树,其中35种原产于北美洲.故A不正确;选项C,第一段The average pine is 45 to 60 feet tall,but some are nearly twice as high.松树的平均高度是 45 至 60 英尺高,但有些近两倍高.故C不正确;选项D,第一段Pine trees are an adaptable and tough species that can survive in many conditions where other plants cannot.松树是适应性和坚强的生物在很多情况下都能生存下来,而其他植物不能.故可知并未说松树通常生长在艰苦的环境中,故D不正确,故B正确.可知选B.
42.C 根据文章中grows from Oregon to California and is often used for construction.它从美国俄勒冈州生长到加利福尼亚,并经常用于建设.故可知是The sugar pine.用于建筑材料.故选C.
43.C 根据文章中Mexican pine can grow to 50 feet tall,with long,slender needles that drape(下垂)off it like a weeping willow(柳树)墨西哥松可以长到50英尺高,长又纤细的针状物下垂就像垂枝的柳树.故该种松树有像柳树般的针状物,其他选项皆不正确,故选C.
44.B 细节理解题.排除法.选项A,从文中第四段的介绍Its leaves can droop up to 12 inches long.它的叶子可以下垂长达 12 英寸.并不能说明墨西哥松的叶子最长,因为其他松树的介绍没有都提到叶子的长度,故A不正确;选项C,从文中第五段The sugar pine is another of the large pine species,such as the bull pine,糖松树是另一种大型的松树,如牛松.故C不正确;选项D,从文中第六段The jack pine is one of the smallest species of pine with rare leaves.杰克松是最小物种之一,叶子很稀少.故D不正确;而选项B,Compared with the pines mentioned above,it doesn't seem to belong to the family.与上文所述的松树相比,它似乎不属于那个科.故B正确.故选B.
点评 学生需要认真阅读原文,把握文章大意,对文章脉络有整体的了解,能仔细查找文中细节,并能根据文章内容进行合理的推测判断.
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