There be 句型 | 玄数

2018-12-27

SAT

There are 7 red marbles, 5 green marbles, and 6 blue marbles in a jar. What is the minimum number of marbles to choose, without replacement, to guarantee that there is one of each color marble?

Answer
14. 一个罐子里有7个红色弹珠, 5个绿色弹珠和6个蓝色弹珠. 最小选择多少个弹珠, 以保证无需更换, 每个彩色的弹珠有一个?



 
1.  表示:有(多少数量)东西 存在 / 放在 某个地方

There is an apple on the desk. …………… 桌上有一个苹果。(可数名词的单数)
There are fifteen apples in the box. …………… 桌上有十五个苹果。(数量 + 复数名词)

 
There is some water under the dish. …………… 碟子下有一些水。(不可数名词)
There is much money in his pocket. …………… 他的口袋里有很多钱。(不可数名词)
There are many flowers in the park.   …………… 公园里有很多花。(复数名词)

2.  否定句:be 后 + not

There aren’t fifteen apples in the box. …………… 桌上不是有十五个苹果。
There isn’t much money in his pocket. …………… 他的口袋里没有很多钱。

3.  一般疑问句:把 be 放到 there 的前面

Is there an apple on the desk?   …………… 桌上有一个苹果吗?
Are there many flowers in the park?   …………… 公园里有很多花吗?

4.  特殊疑问句:主语是可数名词时用 How many 提问,不可数名词则用 How much

How many apples ( are there ) on the desk?   …………… 桌上有几个苹果?
How much money ( is there ) in his pocket?   …………… 他口袋里有多少钱?

练习

翻译:
pentomino   五格拼板
A polyomino of order 5, that is, a polygon in the plane made of 5 equal-sized squares connected edge-to-edge. When rotations and reflections are not considered to be distinct shapes, there are 12 different free pentominoes. When reflections are considered distinct, there are 18 one-sided pentominoes.
pentomino

There be 句型