A. They are used for lighting in the dark.
B. They are leaving for Canada.
C. They are using a new kind of tool.
九年级英语听句子选答语简单题
A. They are used for lighting in the dark.
B. They are leaving for Canada.
C. They are using a new kind of tool.
九年级英语听句子选答语简单题查看答案及解析
They're shoes with _ . People can use them for seeing in the dark.
A. letters B. lights C. wheels D. colors
九年级英语单项填空中等难度题查看答案及解析
句型转换, 每空一词（20分）
1.They're used for seeing in the dark. (改为否定句)
They________ ________for seeing in the dark.
2.Liu Weidong wanted to make Xiaoyu happy. (改为一般疑问句)
________Liu Weidong________to make Xiaoyu happy?
3.Chinese people invented the abacus in the sixth century. (改为被动语态)
The abacus________ ________in the sixth century________Chinese people.
4.Jim can clean up parks on Sundays. (就划线部分提问)
________ ________Jim clean up parks?
5.We had a great time in Hong Kong last summer. (改为同义句)
We________ ________in Hong Kong last summer.
6.The children have never seen an Indian film.________ ________? (完成反意疑问句)
7.He is playing basketball now. ( 用every afternoon改写句子)
He _______ basketball every afternoon.
8.I got to school late because the traffic was very busy.(对划线部分提问)
_______ ______ you get to school late?
9.How about opening the window?(改写为同义句)
______ _______ opening the window?
10.It takes him three days to mend the subway.(同义句)
He ______ three days _______the subway.
九年级英语句型转换中等难度题查看答案及解析
Battery-operated slippers are used________seeing in the dark．
A. to
B. as
C. by
D. for
九年级英语单选题中等难度题查看答案及解析
The new slippers are used________seeing in the dark.
A、to B、for C、as
九年级英语单项填空简单题查看答案及解析
Battery-operated slippers are used________seeing in the dark．
A．to
B．as
C．by
D．for
九年级英语单项填空中等难度题查看答案及解析
We are now living in the modern society. Most of the energy we use for heating, lighting, transportation and manufacturing (制造业) comes from fossil (化石) fuels. These are carbon-based fuels from oil, coal and natural gas. When we burn these fuels we release heat which p__1.___ the energy.
There are three main disadvantages to using these fuels. Firstly, they are causing climate problems because of the G_2.___ Effect. When we burn fossil fuels they produce carbon dioxide which causes global warming. Secondly, when we have used up all our coal, oil and natural gas, we will have n__3.__ left to burn. Thirdly, they are not very efficient. The internal combustion engine (内燃机) that we use in most cars, trucks and buses, for example, is only about 14% efficient.
Scientists are working on another fuel—hydrogen. There are a couple of advantages to using hydrogen as a fuel. Firstly, because two-thirds of the e__4.__ surface is water and water is made of hydrogen and oxygen. There is an almost unlimited supply of hydrogen. Secondly, burning hydrogen does not cause global warming. Thirdly, it is much more efficient than carbon-based fuels.
Unfortunately there are problems with hydrogen at the present time: there is the problem of separating (分离) it from water c_5.___, and there is the difficulty of storing it. It can be stored under pressure but high pressure tanks are far from safe. It can also be stored as a liquid but only at extremely low temperatures. It seems likely, therefore, that there will have to be a completely new technology before hydrogen replaces fossil fuels. S__6.___ these problems is an urgent (急迫的) matter. Although China, India and Australia have huge amounts of cheap coal, and there are still l__7.___ oil and gas reserves(储藏量) elsewhere, the effects on the planet’s climate will be bad if they are used.
九年级英语其他题极难题查看答案及解析
Battery-operated slippers are used ______ seeing in the dark.
A．to B．as C．by D．for
九年级英语单项填空中等难度题查看答案及解析
--Are you ________ the dark?
--Oh, yes. I always go to sleep with the light on.
A. used to B. afraid of C. interested in D. good with
九年级英语单项填空简单题查看答案及解析
Most girls like to sleep with the lights on, because they are ________ the dark.
A. afraid B. terrified of C. interested in D. sure of
九年级英语单项填空中等难度题查看答案及解析