<p><b style="color: rgb(57, 181, 74); font-size: 20px;">春天主題之風(fēng)–1</b></p> <p><b>How is the weather?</b></p><p>先看了相關(guān)兒歌再來(lái)認(rèn)識(shí)對(duì)應(yīng)的圖片。</p> <p><b>Wind, what it is?(轉(zhuǎn)Cindy媽媽)</b></p><p>Wind is moving air. Air is what we breathe.</p><p>It is everywhere around us, even through we can’t see it.</p><p>We can’t see air. And we can’t really see the wind. </p><p>But we can see the wind move things. </p><p>Wind pushes clouds across the sky. </p><p>Wind flutters[<b>?fl?t?rz</b>]</p><p>(使)飄動(dòng)，揮動(dòng)，顫動(dòng); (鳥或昆蟲)拍(翅)，振(翅)，鼓(翼); 飛來(lái)飛去; 翩翩飛舞; </p><p> the leaves of trees and makes ripples</p><p>:[<b>?r?plz</b>](使)如波浪般起伏; 擴(kuò)散; 涌起; 波紋；細(xì)浪；漣漪on lakes.</p><p>You can hear the wind, too. When wind blows through cracks in your house, it can sound like someone whistling. If the wind blows very hard, it can sound like a wild animals howling.</p><p>You can feel the wind too. Stand by an open and let the breeze tickle your face. </p> <p>You can figure out which way the wind is blowing by watching a leaf, a piece of cloth or string, or a weather vane.</p><p>The weather vane’s arrow will point in the direction that the wind is coming from.</p><p>你可以通過(guò)觀察一片樹葉、一塊布、一根繩子或一個(gè)風(fēng)向標(biāo)來(lái)判斷風(fēng)向。</p> <p><b>What makes the wind</b></p><p><b style="color: rgb(237, 35, 8);">When hot air and cold air change places, wind is made.moving air is the wind</b></p><p><span style="color: rgb(1, 1, 1);">風(fēng)是由空氣流動(dòng)引起的一種自然現(xiàn)象，它是由太陽(yáng)輻射引起的。太陽(yáng)光照射在地球表面上，使地表溫度升高，地表的空氣受熱膨脹變輕而往上升。</span></p><p><span style="color: rgb(1, 1, 1);">熱空氣上升后，低溫的冷空氣橫向流入，上升的空氣因逐漸冷卻變重而降落，由于地表溫度較高又會(huì)加熱空氣使之上升，這種空氣的流動(dòng)就產(chǎn)生了風(fēng)。</span></p> <p><b>Wind Science Experiment for Kids</b></p><p>Everyone has felt wind before, but understanding how it moves around can be very complicated. We set up a simple science experiment to demonstrate how the air temperature causes air to move.</p><p>Empty bottle</p><p>Balloon</p><p>Bowl of hot water</p> <p><b>The facts about wind</b></p><p>Wind (風(fēng)) helps people on Earth.</p><p>風(fēng)能幫助地球上的人們。</p><p>Wind can make a lot of energy (能量) and so people can use it.</p><p>風(fēng)能產(chǎn)生大量的能量，因此人們可以利用它。</p><p>Wind is the cheapest (最便宜的) form of energy.</p><p>風(fēng)是最廉價(jià)的能量形式。</p><p>Sometimes it is dangerous, and sometimes it is not dangerous at all.</p><p>有時(shí)風(fēng)很危險(xiǎn)，但有時(shí)它一點(diǎn)兒也不危險(xiǎn)。</p><p>It is renewable forever (永遠(yuǎn)).</p><p>風(fēng)永遠(yuǎn)是可再生的。</p><p>How fast does the wind blow (吹)?</p><p>風(fēng)速有多快？</p><p>Storm winds blow about 110 kilometers per hour.</p><p>暴風(fēng)的時(shí)速大約是110千米。</p><p>Breezes blow about 35 kilometers per hour.</p><p>微風(fēng)的時(shí)速大約是35千米</p> <p><b>風(fēng)的等級(jí)</b></p> <p><b style="color: rgb(237, 35, 8);">拓展:風(fēng)速儀</b></p><p><span style="color: rgb(1, 1, 1);">anemometer[??n??mɑ?m?t?r]</span></p><p><span style="color: rgb(1, 1, 1);">風(fēng)速計(jì); 風(fēng)速表</span></p><p><span style="color: rgb(1, 1, 1);">Anemometer :an instrument for measuring and indicating the force or speed and sometimes direction of the wind.</span></p><p><span style="color: rgb(1, 1, 1);">風(fēng)速計(jì)：一種用于測(cè)量和指示風(fēng)的力或速度，有時(shí)甚至是風(fēng)向的儀器。</span></p> <p><b style="color: rgb(237, 35, 8);">之前買的科學(xué)套餐里剛好有一個(gè)相風(fēng)鳥，剛好拿出來(lái)玩</b></p> <p><b style="color: rgb(237, 35, 8);">相風(fēng)鳥</b></p><p>傳說(shuō)在舜禹時(shí)就有相風(fēng)鳥，用木制成鳥形，置于桿上，鳥能自由轉(zhuǎn)動(dòng)，其頭所指即為風(fēng)向。據(jù)《三輔黃圖》記載，漢武帝太初元年(公元前104年)所建的建章宮厥上，裝有銅鳳凰，下有轉(zhuǎn)樞，風(fēng)來(lái)時(shí)，銅鳳凰的頭向著風(fēng)好像要飛的樣子。東漢時(shí)，改裝成為另一種側(cè)風(fēng)器—相風(fēng)銅鳥，安裝在長(zhǎng)安西北郊國(guó)家設(shè)立的靈臺(tái)上。這種相風(fēng)銅鳥既能側(cè)風(fēng)向，還能觀測(cè)較大風(fēng)的風(fēng)力。</p><p><br></p> <p><b>拓展:Straws bagpipe</b></p><p><b>Materials:</b></p><p>Eight straws</p><p>Scisscors</p><p>Ruler</p><p>Masking tape</p><p>Pen or marker</p><p><b>Directions:</b></p><p>1.Measure and cut the straws into these lengths: 19.5 centimeters, 17.0 cm, 15.5 cm, 14.5 cm, 13.0 cm, 11.5 cm, 10.0 cm, 9.5 cm.</p><p>2.Label the longest straw #1, the next longest straw #2, and so on. The smallest straw should be labeled #8.</p><p>3.Tape the straws together in order from longest to shortest. You can use small pieces of straw (about 2 cm long) as spacers between the longer straws. This is called a pan pipe.</p><p>4.Hold the pan pipe vertically below your lips, with the uneven ends pointing down. Blow across the tops of the straws as though you are blowing across the top of a pop bottle. </p><p>5.Try playing one of the songs below, or make up your own songs. Remember: 1 is the longest straw and 8 is the smallest straw.</p><p><br></p><p><b style="color: rgb(237, 35, 8);">What's happening?</b></p><p>As you blow across a straw, the air in the straw vibrates. These vibrations travel outward and reach our ears sounding like the notes of a scale. You can change the pitch (the perceived highness or lowness of a sound) by changing the length of the straw. A long straw produces a low note. A short straw produces a high note.</p><p> 通過(guò)向吸管口吹氣,將空氣快速擠壓進(jìn)吸管里,使空氣震動(dòng),這動(dòng)的聲音就會(huì)從吸管下面的洞口傳出來(lái)。你可以通過(guò)改變吸管的長(zhǎng)度來(lái)改變音高（感知到的聲音的高低）吸管長(zhǎng)度控制里面空氣的長(zhǎng)度，吸管越長(zhǎng)音調(diào)越低。</p> <p>感覺(jué)根本吹不出音樂(lè)來(lái)。??</p> <p><b style="color: rgb(57, 181, 74);"><i>閱讀時(shí)光</i></b></p> <p><b style="color: rgb(57, 181, 74);"><i>小記</i></b></p><p>小黃同學(xué)在我家都開(kāi)始風(fēng)這個(gè)主題的時(shí)候出差，搞得我求助無(wú)門??，然后這家伙出差太閑，估計(jì)竟然尋思著要教他女兒編程。</p> <p><b style="color: rgb(237, 35, 8);">還自己做了個(gè)小樣，請(qǐng)問(wèn)爸爸這是變相獻(xiàn)媚嗎????</b></p>