寫前預練的重點是按照某篇作文的要求，引導、幫助學生把他想要寫的內容首先用漢語正確地說出來。

　　今天學習啦小編想要和大家分享的是：小升初優秀作文：太陽帆船 ;內容僅供參考閱讀，希望大家能夠喜歡;

　　太陽帆船

　　緊緊系在懸索上的大圓盤形太陽帆，已經鼓滿了宇宙間的長風，像一名斗志昂揚、整裝待發的勇士。三分鐘內比賽就要開始了，約翰·默頓的心中卻異常的輕松與平靜。

　　“最后兩分鐘，”座艙無線電發出指令，“請檢查準備情況。”船長們逐個回答。“1號——‘游絲’號，準備好出發!”“2號——‘圣瑪利亞’號，一切準備就緒!”“3號——‘陽光’號，準備就緒!”“4號——‘投標器’號，一切系統正常!”“5號——‘列別捷夫’號，我們準備就緒!”“6號——‘蜘蛛’號，準備就緒!”默頓在出發線的末端，聽著朋友和對手們的聲音，現在輪到他回答了。“7號——‘狄安娜’號，準備好出發!”裁判員的聲音異常平靜，“現在，最后1分鐘。”“……5、4、3、2、1，斷纜!”

　　刀片割斷了把飛船拴在為其進行總裝和維護的母船上的細線。七艘帆船開始散開，宛如蒲公英的花籽在輕風中飄散。優勝者將是第一個飄過月球的人。座艙儀表表明“狄安娜”號正以千分之一的推動力增加著速度。這全是太陽風的力量!按這個速度，繞地球兩圈之后，就能達到第二宇宙速度，那時它將向月球飛去。

　　默頓看到了他的對手們，他們猶如朵朵銀花綻放在幽暗的宇宙空間。做了40多年的飛船設計師，他渴望獨自駕著飛船，贏得成功。

　　剛睡了兩個小時，警鐘響亮而刺耳的聲音就把他從無夢的酣睡中驚醒。默頓敏捷地檢查了一下指示吊索拉力的儀表，在太陽帆一側，讀數正常--可是，在另一側，拉力在慢慢下降。

　　光線在漸漸消失，“狄安娜”號靜悄悄地滑進地球的陰影里，太陽垂直落在不可見的地平線之下，夜幕降臨了。飛船已經走過四分之一的軌道，進入短暫的夜晚，一小時后太陽才能從巨大的黑影中浮現出來，在這一小時中，飛船將做無動力滑行。

　　現在只剩下“狄安娜”號、“列別捷夫”號和“投標器”號了，但“投標器”號為了追趕前兩艘太陽帆船，把懸索減修到最小重量，但當它再次從幾千公里高的出發線上經過時，太陽射線的額外能量把懸索壓斷了，帆船像一塊手帕在太空中飄動著。

　　“狄安娜”號和“列別捷夫”號展開了直接對抗，“狄安娜”號暫時領先。

　　默頓毫不感到疲倦，他只有兩種擔心：第一是擔心8號懸索，它已不能調整了，只能用其他懸索盡力做最佳航行;第二是擔心“列別捷夫”號，它正在300公里之后尾隨著他。俄國人的飛船有可圍繞中心帆而傾斜蹺起的四塊巨大翼板，顯示出極大的靈活性。

　　然而，在比賽的第五十個小時，接近地球第二圈末尾時，“列別捷夫”號使默頓略吃一驚，帆桁和懸索與中心方形帆分離開，飄然進入宇宙空間。“列別捷夫”號放棄了一切不必要的東西，這樣，它很快達到了第二宇宙速度。默頓在像火柴盒那么大的計算機上算出，“列別捷夫”號將正好在他期待的通過月球的時刻趕上他。

　　官方救險發射裝置上的指揮官范·斯特拉注視著從高懸在太陽熾熱表面的太陽觀察站上發回的照片，他的雙眼，充滿了失望，比賽將不得不放棄。默頓為自己和“列別捷夫”號遺憾，他們都應該贏得比賽，而今勝利卻不屬于任何人。太陽處于憤怒中，沒有人能爭勝負了。

　　默頓切斷了懸索，銀色的太陽帆飛走了，他搭上了救險的太空飛艇。他的心情慢慢平靜下來，他永遠不能贏得飛往月球的比賽了，但他的帆船卻將是飛行在星際的漫長航程上的第一艘人造太陽帆船。

　　英文翻譯

　　Sun Sailing

　　Closely tied to the suspension of large disc shaped solar sail has been filled drum winds of the universe, like a high morale, ready warriors. Within three minutes of the game to begin, John Merton heart is unusually relaxed and calm.

　　"The last two minutes," the cockpit radio issued a directive, "Please check the readiness." Captains one by one to answer. "1 - 'gossamer' number, ready to go! '' On the 2nd - 'Santa Maria' No, everything is ready," "the 3rd -! 'Sunshine' sign, ready"! "On the 4th - 'Tender is the' all systems normal "!" on the 5th - 'Lebedev' No, we are ready! '' on the 6th - 'Spiders' No, ready "Merton in starting line! end, listening to the voices of friends and rivals, and now it was his turn to answer. "On the 7th - 'Diana' number, ready to go!" Referees unusually quiet voice, "Now, the last one minute." "...... 5,4,3,2,1, broken rope!"

　　Blade cut the ship tied to its final assembly and maintenance of the mother ship of the thread. Seven yachts began to disperse, like dandelion seeds blowing in the breeze. Winners will be the first person drifting moon. Cockpit instrument show "Diana" was at an impetus to increase the speed of a thousandth. This is all the power of the solar wind! At this rate, after two laps around the earth, will be able to reach second cosmic velocity, then it will fly to the moon.

　　Merton saw his opponents, they like the blossoming honeysuckle bloom in the dark space. Made spacecraft designer 40 years, he was eager to sail spacecraft alone, to win success.

　　Just slept two hours, the alarm loud and shrill voice never put his dream of sleep awakened. Merton promptly checked the instructions sling tension meter solar sails in the side, reading normal - but, on the other side, the tension slowly declining.

　　In the fading light, "Diana" was quietly slipped into the Earth's shadow, the sun falls below the invisible vertical horizon, night fell. The spacecraft has gone through a quarter of the track, into the short night, an hour after the sun in order to emerge from the huge shadow, and in this hour, the spacecraft will make unpowered glide.

　　Now only "Diana" No, "Lebedev" and "bid" on numbers, but the "bid" on number two in order to catch the sun before sailing, the suspension reduced repair to the minimum weight, but when it again when thousands of kilometers from the starting line after high solar energy ray additional pressure off the suspension, sailing like a handkerchief fluttering in space.

　　"Diana" and "Lebedev" was launched a direct confrontation, "Diana" was a temporary lead.

　　Merton felt no fatigue, he worried only two: the first is the fear of the 8th suspension, it can not adjust, and can only try to make the best sailing with other suspension; the second is worried, "Lebedev" No. It is 300 km after end with him. Russian ships have to sail around the center of the four huge Qiaoqi inclined wing, showing great flexibility.

　　However, in the fifth game of ten hours, close to the Earth at the end of the second lap, "Lebedev" was to make a little surprise Merton, a yard and a suspension and central square sail separated, and floated into space. "Lebedev" was to give up all unnecessary things, so that it will soon reach the second cosmic velocity. Merton on the computer so much like a matchbox is calculated, "Lebedev" sign will just catch up with him he was looking at the moon through time.

　　Commander-emitting devices on the official wrecker Van Stella watched from the hot surface of the sun hanging in the sun observatory sent back photos, his eyes full of disappointment, the game will have to give up. Merton himself and "Lebedev" No regrets, they are supposed to win, and now the victory does not belong to anyone. The sun is angry, no one can dispute the outcome of.

　　Merton cut off the suspension, silver solar sails flew away, he got into a wrecker space airship. His mood gradually calmed down, he never won the race to the moon, but he puts a sailboat on the long voyage of interstellar flight of the first artificial sun sailing ship.