手机短信验证
英语语法：by
1. 动名词与BY：by doing——通过做某事
By using the Internet you can do your shopping from home.
I’m going to start off by explaining the purpose of our campaign.
2. 数词与BY：乘、除、比、增减
If you multiply four by five, the answer is twenty.（四乘以五）
Six divided by two is three.（六除以二）
House prices rose by an average 23% last year.（平均提高了23%）
We lost the match by one goal.（输了一个球）
The house has a spacious dining room, measuring 18 feet by15.（长宽比）
英语必修五单词
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3. 时态与BY：“在……之前”，常作完成态标志
How many people have accessed your homepage by now?
到目前为止，有多少人访问了你的主页？
（到现在为止：现在完成时）
The store will have closed by then. 到那时商店早关门了。
（到将来某时为止：将来完成时）
He decided to get married because both of them had got master's degree bythen.
他决定结婚，因为到那时他们两个都已拿到硕士学位了。
（到过去某时为止：过去完成时）
4. 状语从句和BY：连词by the time——到……时为止
By the time Charlotte was 15, she had already achieved worldwide fame.
By the time起状语从句连词作用，主句常用完成态）
5. 冠词与BY：抓、乘、按、方式、累加
Taking me by the arm,she led me into the next room.（抓在某个部位：用the）
Sophie’s parents arrived by taxi.（乘坐某种交通工具：无冠词）
Floor coverings are priced by the square metre.（按照……为单位：the）
Industrial workers are generally paid by the hour.
They exchanged New Year’s greetings by email. （方式：无冠词）
Take care that you don’t shoot one of us by mistake.
Every bit of lace is made by hand (=not using a machine).
His medical condition is continuing to improve day by day.（累加“一个接一个”：无冠词）
阅读理解七选五 根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项。
选项中有两项为多余选项。（5 分）
In China, there arc many different kinds of food. Some of them are very popular. (86)__________ Now let's talk about them, OK?
Everyone in China likes dumplings very much, and there are many different kinds of dumplings. Some have meal and vegetables in them, others have sugar (糖)，eggs and so on. (87) ______________________.
(88) ___________ But if you have no time to make them at home, you can buy them in any supermarket. Then you take them home and eat them with vinegar.
The Spring Festival is very important in China. When it comes, we make dumplings. (89) ______________ If one cats the dumpling with the coin in it, he will be lucky (幸运的)in the year.
(90)__________________.
Welcome to China, we ask you to eat the real Chinese food: dumplings.
A. People always make dumplings at home.
B. I like dumplings with vegetables and pork best.
C. Now tell me, do you like dumplings?
D. \Mc sell dumplings at very good prices.
E. Dumplings are the real Chinese food.
F. People like to cat dumplings in the Spring Festival.
G. We put a coin (硬币)in a dumpling.
答案：
86- 90 EBAGC
