When birds make noise, it's not always with their throats. In hummingbirds (蜂雀), for example, special feathers flutter and vibrate to produce tones and whistles, which impress potential mates and scare off competitors. Now researchers have found that pigeons use wing noise to warn the flo...
nottodosth.告诉某人不要做某事;makenoise制造噪音【翻译】我的爸爸告诉我,当观察鸟类的时候不要制造任何噪音,因为噪音会使它们害怕。【解析】结合句意可知,此处表示“我的爸爸告诉我,当观察鸟类的时候不要制造任何噪音,因为噪音会使它们害怕。”。结合选项,A项nottomake,符合语法搭配,表示“不要制造”;B项tonot...
BIRDS OF A FEATHER USUALLY MAKE NOISE TOGETHERANN LANDERS
very vulnerable to cold winters and don’t tend to thrive or even survive proper winters like those of the early 1960s. The Suffolk coast at NT Dunwich and RSPB Minsmere is probably about as far north as you will see them in the UK, but that will inevitably change with global warming ...
DEVICE AND SYSTEM DESIGNED TO MOVE, MAKE NOISE AND SCARE UNWANTED ANIMALS AND BIRDS OUT OF GARDENS AND FIELDSA device turns on at desired times, moves an object or objects, and optionally makes sounds to scare animals away. The object can be, for example, a moving scare crow that is ...
nottodosth.告诉某人不要做某事;makenoise制造噪音【翻译】我爸爸告诉我看鸟的时候不要制造噪音,因为噪音会使它们害怕。【解析】根据题干可知,本题考查tell的用法,“tellsb. todosth.告诉某人做某事”,否定形式是“tellsb. nottodosth.告诉某人不要做某事”,makenoise是“制造噪音”的意思,故答案是A。
Please keep B while you are watching birds because any noise will make them fly away. B. quiet C. free D. busy17. They love winter because they think it's interesting B with snow. A.play B. to play C.played D.playing18. He is making a great effort B English well because he is...
The only link between this signalling function and urbanisation so far has been made to explain changes in the number of feathers along an urbanisation gradient in Blue Tit nests from the city of Birmingham, UK (Reynolds et al. 2016). This is based on the idea that feathers may signal ...
It ___we___ make noise here. A:OK.I like birds.Let’s watch them quietly. B:Look at this public sign. A:What ___ it mean? B:It means“___ ___ or ___ ”. A:So we can’t give the birds drinks or food.试题答案 【答案】signs here;do;Be quiet;means;shouldn’t;does...
Without the tympanic mid- dle ear, most of the airborne sound would reflect at the air-body interface due to the higher impedance of body tissues relative to that of air. The form, shape and structure of the middle ear, however, is highly variable, reflecting the evolutionary history of ...