6、所有的稀有氣體都是單原子分子而誤認(rèn)為雙原子分子。
5、要求寫“名稱”卻寫分子式或其他化學(xué)式,要求寫分子式或結(jié)構(gòu)式卻寫名稱。電子式、原子或離子結(jié)構(gòu)示意圖、結(jié)構(gòu)簡式、結(jié)構(gòu)式不看清,張冠李戴。要求寫離子方程式而錯(cuò)寫成化學(xué)方程式。
4、有單位的要寫單位,沒有單位的就不要寫了。如“溶解度”單位是克,卻不寫出,“相對(duì)分子質(zhì)量”、“相對(duì)原子質(zhì)量”無單位,卻加上“g”或“g.mol-1”。摩爾質(zhì)量有單位(g.mol-1)卻不寫單位,失分。
3、別忽視題干中 “混合物”、“化合物”、“單質(zhì)”等限制條件。
2、書寫化學(xué)方程式時(shí),分清是等號(hào)還是可逆號(hào),如一種鹽水解方程式一定用可逆號(hào)不能用等號(hào),其產(chǎn)物也不能標(biāo)“↓”或“↑”,弱酸、弱堿的電離一定要用可逆號(hào)不能用等號(hào)。
1、排列順序時(shí),分清是“由大到小”還是“由小到大”,類似的,“由強(qiáng)到弱”,“由高到低”,等等。
第二節(jié) 書面表達(dá)(滿分25分)
請(qǐng)看《中國日?qǐng)?bào)》的報(bào)道: The "illegal cooking oil" is usually made from discarded kitchen waste that has been refined, the report said, adding that the oil, which contains a highly toxic and carcinogenic substance called "aflatoxin", can cause cancer. 該報(bào)告稱,“地溝油”通常使用餐廚垃圾提煉而成,成分中含有的黃曲霉素毒性很強(qiáng),可致癌。
使用illegal cooking oil已成為餐飲行業(yè)的open secret(公開的秘密)。國家藥監(jiān)局近日發(fā)布緊急通知,要求嚴(yán)防“地溝油”流入餐飲服務(wù)環(huán)節(jié),對(duì)于違反單位,情節(jié)嚴(yán)重的將吊銷其餐飲服務(wù)許可證。
請(qǐng)你就此談?wù)撃阕x了該新聞的感受。要求:詞數(shù)120左右,行文連貫,
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第一節(jié) 短文改錯(cuò)(共10小題;每小題1分,滿分10分)
假定英語課上老師要求同桌之間交換修改作文,請(qǐng)你修改你同桌寫的以下作文。文中共有10初語言錯(cuò)誤,每句中最多有兩處。對(duì)標(biāo)有題號(hào)的每一行作出判斷:如無錯(cuò)誤,在該行右邊橫線上畫一個(gè)勾(√)如有錯(cuò)誤(每行只有一個(gè)錯(cuò)誤),則按下列情況改正:
刪除:把多余的詞用斜線(\)劃掉,在該行右邊橫線上寫出該詞,并也用斜線劃掉。
增加:在缺詞處加一個(gè)漏字符合(^),在該行右邊橫線上寫出該加的詞。
修改:在錯(cuò)的詞下劃-橫線,在該行右邊橫線上寫出改正后的詞。
注意:1.每處錯(cuò)誤及其修改均僅限一詞;
2.至允許修改10處,多者(從第11處起)不計(jì)分。
Dear Mr. Johnson,
I’ve learned from a newspaper that some clerks are wanting in your company. I am eager to being one of them. So I am writing the letter. My name is zhang Hua. I was born in the Hebei Province and I am in good health. I’ve just graduated in the Computer Department of Wuhan University. I did very good in all subjects and I am especial good at computer studies and English. I can read science books in English and doing some writing in English as well.
Beside, I know a little French. And in my spare time, I enjoy playing basketball. As is said that your company is very famous and I’ll very glad if you let me work for it. My telephone number is 027-89276628.I am looking forward to hearing from you soon.
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