1.选择题- (共6题)
如图是碳在自然界中的循环示意图,图中数字表示过程,箭头表示循环或流动方向.请分析回答
(1)大气中的碳进入食物链首先是以{#blank#}1{#/blank#} 的形式出现的,①是{#blank#}2{#/blank#},C在食物链中属于{#blank#}3{#/blank#} 营养级,D是{#blank#}4{#/blank#} .碳的循环是以二氧化碳和含碳有机物的形式循环的.
(2)近年来农民焚烧植物秸秆现象时有发生,植物秸秆在图中应该处于{#blank#}5{#/blank#} (填图中字母)的位置,焚烧时相当于处在了{#blank#}6{#/blank#}的位置,在农田焚烧时其所含的能量{#blank#}7{#/blank#} ,产生的灰尘还污染大气.
南湖菱是我市特产之一,它生在南湖水域.我市的南湖菱和其他地区的菱外形不同,我市的南湖菱是不长角的,这种不同的性状是由DNA上的决定的.从植物分类上看,南湖菱属于{#blank#}1{#/blank#}(选填“被子”或“裸子”)植物.整个南湖就是一个生态系统.阳光、空气、水分等都能影响卷心菜的生长,它们属于{#blank#}2{#/blank#}.在种植南湖菱的过程中,需要及时除草、治虫,目的是{#blank#}3{#/blank#}.
2.单项选择- (共10题)
A.a progress; efforts | B.progresses; an effort |
C.much progress; effort | D.little progress; efforts |
A.A; the | B.A; / |
C.The; / | D.The; a |
A.hold on | B.hold up |
C.hold back | D.hold out |
---Come on! Computer games are ____. We play games on the iphone now.
A.get caught in; on the way out | B.get rid of; on the way out |
C.be caught in; running out | D.run out of; getting rid of |
---I feel like ____the museum. Would you like ____with me?
A.to visit; to go | B.visiting; to go |
C.visiting; going | D.to visit; going |
A.As | B.While | C.When | D.But |
A.why; that | B.why; because | C.that; because | D.which; that |
A.if never | B.if ever | C.if not | D.if any |
A.did the computer repair | B.he repaired the computer |
C.was the computer repaired | D.the computer was repaired |
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【1】题量占比
选择题:(6道)
单项选择:(10道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:2
5星难题:0
6星难题:5
7星难题:0
8星难题:3
9星难题:0