高一寒假作業(yè)、英語,化學(xué),生物
單句改錯(cuò)
1、We have discussed the problem for quite some time,but haven't been reachel any conclusion yet.
2、Tomisn't here.He has been to the library.
3.The couple had married for nearly 40 years before the husband died last year.
4.Rock music is popular by young people.
5.This is a good way of studay English well.
句型轉(zhuǎn)換
1.The reason why he took Swiss nationality in 1901 is still a questiong.
____ he took Swiss nationality in 1901 ____ ____ ____.
2.When and where for them to hold the meeting has not yet been decided.
____ ____ ____ ____ will hold the meeting has not yet been decided.
3.It is important that we should make full use of our time.
____ ____ ____ important _____ ____ ____ make full use of our time.
4.Dreams are different from reality.
Dreams ____ ____ reality.
5.He burst into rears on hearing the news.
He ____ ____ ____on hearing the news.
有ABCDE五種化合物,其中ABCD是含鋁元素的化合物,F是一種氣體,標(biāo)況下相對(duì)于空氣的密度是1.103.他們之間的轉(zhuǎn)化關(guān)系為下
1.A+NaOH--D+H2O 2.B--A+H2O 3.C+NaOH--B+NaCl 4.E+H2O--NaOH+F
(1) 寫出ABCD的化學(xué)式
（2）寫出1.和4.的離子方程式
從一種生物的細(xì)胞中提取得到甲乙兩種有機(jī)物,甲的含量大于乙,在適當(dāng)條件下用人的胃液處理,甲分解而乙不分解,分析甲乙的化學(xué)成分,甲含有氮和硫,乙含有氮和磷,甲乙兩種物質(zhì)遇碘都不變藍(lán),從來源看,在細(xì)胞膜上有甲而沒有乙.請(qǐng)回答
（1）根據(jù)以上敘述可知,甲屬于_________類物質(zhì),乙屬于__________類物質(zhì)
（2）甲在適當(dāng)條件下,用人的胃液處理后能分解,是胃液中的_______在起作用
（3）在物質(zhì)乙的結(jié)構(gòu)單位中,N主要存在于_________部分