如图中①~③是从几种生物细胞中分离出来的几种有机物,③只表示某有机物的局部,请回答下列问题:
(1)①的中文名称是____ ,通常它的合成场所在____
(2)人体细胞中,物质②主要在____ 生理过程中产生,写出物质②的结构简式 ____
(3)细胞中合成物质③的细胞器是____ ,请在图上用框框标出肽键结构____ .
(4)人体中,物质③种类繁多,控制其差异的根源是____ 的不同.
(5)综合上述分析,你认为以上物质①②③在哪个生理过程中会同时出现?____.
下列句子空白处应填的词语,恰当的一项是( )
①“吹面不寒杨柳风”,不错的,像母校的手_______着你。
②“妈妈!”我奔过去,为自己的_______,为自己的_______流着泪。
阅读下列材料:
材料一 1894年7月,日本不宣而战,发动了蓄谋已久的对华战争。8月,清政府被迫应战。——北师大版教材
材料二 1888-1894年慈禧挪用海军军费修建颐和园。……这些钱,如果用来购买定远这样的铁甲舰,可以买十一艘……——戚其章《北洋舰队》
材料三 1937年7月,日本发动全面侵华战争,……国共两党再度合作……经过全民族八年艰苦卓绝的殊死斗争,1945年8月,日本侵略者宣布无条件投降。——北师大版教材
请回答:
根据短文内容,用方框中所给单词的适当形式填空,每词限用一次。
happy buy alone pet easy
Do you love animals? Would you like to keep animals as a pet? Nowadays, many people like to keep pets at home. The most popular____ are cats and dogs. They are friendly to people, and they are also ____ to take care of. Some people like parrots as pets. Pets lovers will____ lots of things for their pets, such as beds, clothes and even toothbrushes. Pets are very useful, too. The people who can’t hear need the dogs' help to answer the door. And the people who live____ should keep a pet if he wants to be healthier and ____ . If you have pets, don't forget to spend more time with them. They need love, too.