8.—Does your brother like learning drawing? —He doesn't like it,because he thinks learning drawing _______ too much money and it _______ too much time as well.( )
41.There are about 9,703 kinds of birds divided up into 23 orders,142 families and 2,057 genera(屬,種類).The total number of birds on the planet is very difficult to estimate because their populations fluctuate seasonally,but scientists have suggested that there may be between 100,000 and 200,000 million adult or near adult birds on the planet at any one time. The most common bird in the world is Red Junglefowl most regularly seen as the common domestic(家養(yǎng)的) chicken.The most widespread commonly seen wild bird in the world is probably the European House Sparrow which has been transported all over the world by European settlers and can now be found on 2/3 of the land masses of the world including New Zealand,Australia,North America,India and of course Europe. The largest living bird is without doubt the ostrich.This ever-popular bird stands a magnificent 2.74 m and can weigh as much as 160 kg. The heaviest flying bird is the Kori Bustard of Africa.A number of specimens have been scientifically recorded weighing 19 kg and heavier specimens have been reported but not confirmed.Close runner-ups are the Eurasian Bustard and the Mute Swan,both of which have been recorded at 18 kg.
(1)How many kinds of birds are there in the world?
42.上周你們班去了扎龍自然保護區(qū)進行觀鳥,寫一篇短文,描述你的見聞和感受.要點如下: 1.保護區(qū)覆蓋了4000多平方公里的面積.是世界上最重要的濕地之一.有很多珍稀鳥類,40%的鶴住在扎龍. 2.在那天,有很多學生記錄了鶴的種類.我們學到了很多關(guān)于鳥的知識,也明白了保護濕地的重要性. 3.濕地越來越小,鳥類處境危險.我們必須… Last week,my class went to Zhalong Nature Reserve to go birdwatching.