题目

下列说法中，正确的是（） A . 酸性氧化物都不与酸溶液反应 B . 陶瓷、水泥及所有的玻璃都是硅酸盐产品 C . 某些非金属单质既能与酸反应也能与碱反应 D . 硅酸盐都是难溶于水的 答案：C　　Do you know how to write an English letter and envelope? 　　When we write a letter in Chinese, we always put the date at the end of the letter. But it is different in English. We have to put it at the top of the right corner. And above the date, we also write the number of our house and the names of our street, city and country. To begin the letter, we always use words like “Dear sir”, “Dear Mr/Miss/Ms…”. To end the letter, we usually use words like “Yours”, “Yours ever” or “Truly yours” and so on. 　　Now read the following envelope, please. 1．In this passage, “envelope” means “________” in Chinese. [　　] A．信B．信封 C．电子邮件D．电报 2．“We have to put it at the top of the right corner.” The word “it” here means ________. [　　] A．the envelopeB．the passage C．the letterD．the date 3．To which country will the letter be sent? [　　] A．AustraliaB．USA C．ChinaD．New York 4．From this passage, we know when we write an English letter, we should put down our address ________. [　　] A．at the top of the letter on the left B．at the top of the letter on the right C．at the end of the letter on the left D．at the end of the letter on the right 5．How do you begin your letter if you write to Jack Black? ________. [　　] A．Dear sir JackB．Mr Jack C．Dear Mr BlackD．Jack Black