is

vt.& vi.

是（be的三单形式；

n.

存在；

过去式：was

which is哪个是；从句的表达形式之一

that is即；就是说；换言之

he is他是…

what is什么是

who is谁是

she is她是

is required是必须的

as it is实际上；事实上；既然如此

is coming正过来

is likely to有可能…

as is[口]照原来的样子；本来就是这样；不予改变

what it is原因；事实真相；理由

is equal to等于

what is more而且

there is no doubt毫无疑问

tomorrow is another day明天又是崭新的一天

nothing is impossible没有什么不可能

what love is n. 爱是什么（美国喜剧）

here it is在这里；给你；给你看看

time is money时间就是金钱；一寸光阴一寸金

1. Spain is our favorite holiday spot.
   西班牙是我们喜欢的度假地点。
2. The boy is 150 centimeters tall.
   这个男孩有150厘米高。
3. There is no doubt about it.
   那是毫无疑问的。
4. A friend in need is a friend indeed.
   患难之交才是真朋友。
5. Pain past is pleasure.
   过去的痛苦即是快乐。
6. The room is 15 feet in length and 10 feet in breadth.
   这房间长15英尺，宽10英尺。

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