[单项选择]When light illuminates an object, part of it is absorbed and part reflected; the （　） lightness of an object depends on the proportion of light that is reflected.
A. denoted
B. embodied
C. insulated
D. perceived

[单项选择]When light illuminates an object, part of it is absorbed and part reflected, the ________lightness of an object depends on the proportion of light that is reflected.


A. denoted
B. embodied
C. insulated
D. perceived

[单项选择]—Must I turn off the light when I leave
—No, ______.

[单项选择]— Must l turn off the light when I leave
— No,______.

[填空题]When did the corpuscular theory of light prevail

[填空题]When the indicator light is flashing, it is needless to use the key to open any of the doors and hood.

[单项选择]

B

I find it annoying and funny when I think about how we use protective or decorative wrappings (装饰性包装) in this country.
When I come home from the supermarket and start to unpack, I am always shocked at the layers of wrappings we cover our food with.
There is hardly anything we buy that doesn’t come in at least two wrappings, and then several of them are gathered by the shop assistant and put into a small bag. Then several of the small bags are grouped together and put into a big bag. If you have several big bags with small bags in them, they give you a cardboard box to put the packages-in-the-little-bags-in-the-big-bags in.
A lot of things we buy wouldn’t really need any protective wrapping at all. The skin of an orange protects an orange pretty well for most of its natural life,but we aren’t satisfied with what nature has given it. We wrap them in plastic or put them in a net bag, and then in a paper bag. The
A. She should not buy a leather sofa.
B. She should not cover her sofa with a cloth.
C. She should not forbid the visitors to see the leather.
D. She should not allow the leather cover to get dirty.

[简答题]part 1 Collecting Did you collect anything when you were a child Do you still collect them now Why do you think people like collecting things If you had a lot of money, what would you like to collect

[单项选择]When I found the light switch, the unshaded bulb only illuminated two small cats, sitting on the table ______ round the inside of the empty ham tin.
A. swallowing
B. gorging
C. licking
D. digesting

[简答题]S2. When did the corpuscular theory of light prevail

[简答题]Part 1Gift When do you usually give a present When do Chinese people usually give a present Is it difficult to give a present Have you ever made a gift by yourself to somebody Do you think it is necessary to give expensive gifts

[简答题]part 1Gift When do you usually give a present When do Chinese people usually give a present Is it difficult to give a present Have you ever made a gift by yourself to somebody Do you think it is necessary to give expensive gifts