题型：语法填空（语篇） 题类：模拟题 难易度：困难
黑龙江省哈尔滨市第三中学2018届高三英语第二次模拟考试试卷
Young sunflowers face the sun as it rises in the east and follow it across the sky until it sets in the west. Why does this happen? A team of scientists has finally been able to figure how and why young sunflowers move.
Older sunflowers always face east. However, as it(turn) out, an internal（内部的）clock helps young sunflowers track the sun so that they can grow better. US biologist Stacey Harmer and her colleagues had it(explain) in a recent paper published in the journal Science on Aug. 5.
(depend) on the time of day, certain growth genes seem to work to different degrees on different(side) of young sunflowers' stems（茎）. The east side of their stems grows faster duringday, causing the stems to (gradual) bend from east to west. The west side grows faster at night, preparing them for the next morning.
All this move is highly(benefit) to sunflowers. The team found that flowers kept away from the sun had leaveswere 10 percent smaller on average. According to Harmer, sunflowers which (face) with the sun receive more bees and other insects because they like warm flowers.
试题篮
China put on {#blank#}1{#/blank#} eight-minute performance "See You in Beijing in 2022", {#blank#}2{#/blank#} (direct) by Zhang Yimou. The show centered on the talents of a team of 24 roller-skating {#blank#}3{#/blank#} (perform) from Beijing Sport University. Two of {#blank#}4{#/blank#} (they) dressed up as "Panda Captains" led the performance. It reviewed China's ancient times, {#blank#}5{#/blank#} (show) the country's rich cultural heritage (遗产) and singing the present as well as the future. In addition to {#blank#}6{#/blank#} (tradition) symbols including the Great Wall, the Chinese Dragon and the Chinese phoenix(凤凰), the performance also showed the recent achievements in science and technology {#blank#}7{#/blank#}has been made in China . Towards the end of the performance, the Olympic rings {#blank#}8{#/blank#} (appear) on the stage, as well as images of a global village, children's smiling faces, olive branches and plum blossoms(梅花), which represented China's promise {#blank#}9{#/blank#} (promote) global peace and build a better future for mankind. Finally, the skaters travelled a path to draw the "Winter Dream" sign of the Olympic Winter dreams Beijing 2022. The performance {#blank#}10{#/blank#} (successful) sent China's goodwill and invitations to the world for Beijing 2022.