3.下列化合物中,不能由單質(zhì)直接化合得到的是
A.NO B.Na
2.下列說(shuō)法中,正確的是
A.化學(xué)科學(xué)與其他科學(xué)分支的聯(lián)系不密切
B.化學(xué)研究的主要目的就是認(rèn)識(shí)分子
C.化學(xué)家可以制造出自然界中不存在的物質(zhì)
D.化學(xué)研究會(huì)造成嚴(yán)重的環(huán)境污染,最終人類將毀滅在化學(xué)物質(zhì)中
1.物質(zhì)的用途和該物質(zhì)的性質(zhì)密切相關(guān)。下列關(guān)于物質(zhì)性質(zhì)與用途的敘述錯(cuò)誤的是
A.鎢絲能承受高溫,受熱能夠發(fā)光,可制造燈絲
B.鈦制品非常輕,卻非常堅(jiān)固,不易變形,可用于制造人造衛(wèi)星和太空飛船的部件
C.硅的導(dǎo)電性介于導(dǎo)體和絕緣體之間,可制造晶體管和集成電路
D.鉛無(wú)毒,抗蝕能力又高,可制造罐頭筒
注意:1. 詞數(shù):100左右; 2. 可適當(dāng)增加細(xì)節(jié),以使行文連貫。
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3. 索取更多關(guān)于該款產(chǎn)品的資料。
2. 詢問(wèn)該新款數(shù)碼相冊(cè)的信息;
1. 簡(jiǎn)要介紹自己;
2. 只允許修改10處,多者(從第11處起)不記分。
I watch TV until nearly 12 o’clock, so I could not go over my lessons. This morning I got up very late that I had to hurry to school without breakfast yet I was late of the first class. When I entered the classroom, the maths teacher has to stop explaining an important problem, and all the eyes fixed upon me. My face turned to red. Something even worse happened to me in the English classes. The teacher asked me to recite the text, but I could speak nothing but sorry, so I did not spend any time preparing my lessons. The teacher looked at me with his coldly eyes. I stood at my bench without daring to raise my head. What a terrible day I had! I will never do anything like this.
第二節(jié) 書面表達(dá)(滿分25分)
假如你是李華,你從某網(wǎng)站上了解到一家美國(guó)公司生產(chǎn)了一種新款的數(shù)碼相冊(cè),你對(duì)此很感興趣,希望了解更多關(guān)于這一產(chǎn)品的信息。請(qǐng)根據(jù)以下要點(diǎn)給這家公司發(fā)一封電子郵件:
1. 每處錯(cuò)誤及其修改均僅限一詞;
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