This is Mr White’s ________ trip to Beijing. He has been there twice before.
A. first B. second C. third
九年级英语单项填空中等难度题
This is Mr White’s ________ trip to Beijing. He has been there twice before.
A. first B. second C. third
九年级英语单项填空中等难度题查看答案及解析
Mr Liu is away on holiday. He to Beijing.
A. has gone B. has been C. goes D. will go
九年级英语单选题中等难度题查看答案及解析
--Do you know where Mr Brown is?---He _______ Beijing for two days.
A. has been to B. has gone to C. has been in D. went to
九年级英语单项填空中等难度题查看答案及解析
—Is that Mr Green speaking?
—Sorry, he isn’t at home. He________ to Africa for a trip.
A.has been B. went C. has gone D. will go
九年级英语单项填空中等难度题查看答案及解析
This is Mr. Green’s ________visit to America. He has never been there before.
A. first B. second C. third D. fifth
九年级英语单项填空简单题查看答案及解析
During the past week, Beijing has been covered with thick smog that is forecast to stay until this weekend at least.
The smog, covering 1.43 million square kilometers mainly in northern China, made the Beijing government give an orange alert - the second-highest warning - and ordered people not to leave their homes.
A study in 2013 by researchers at Tsinghua University said that there were more than 1,300 microbes(可吸入颗粒) in the atmosphere over Beijing. Although most of them may do no harm to human health, the number still makes people worried.
Zhuang Guoshun, director of the Center for Atmospheric Chemistry Study at Fudan University, said Beijing is covered by smog for an average of 60 percent of the year, while the number for Shanghai is 30 to 50 percent.
However, research studies have found that higher air pollution levels do not exactly mean higher risks of early death or other health illnesses.
One of the scientists' main attentions is the level of PM2.5 - floating matter of 2.5 microns (微米)or smaller, which can go deep into the lungs(肺) and even enter the blood.
Guangzhou and Shanghai in the south of China have slightly higher relative risks to early death from the effects of PM2.5 than Xi'an and Beijing in the north, even though the levels of PM2.5 in the northern cities were nearly twice those in the south, according to a study published in September 2013, led by Pan Xiaochuan, a professor at Peking University's School of Public Health.
1.What colour warning is the second-highest one?
A. Blue. B. Orange. C. Red. D. Black.
2.The third paragraph mainly tells us that __________．
A. the number of microbes worries people B. smog does no harm to our health
C. the professor is from Fudan University D. Beijing must pay attention to the pollution now
3.According to the fourth paragraph, we can see that in a year Shanghai is covered with smog at least __________ days.
A. 73 B. 110 C. 146 D. 183
4.Which city has a little higher relative risk to early death from PM 2.5?
A. Xi’an B. Beijing C. Nanjing D. Guangzhou
九年级英语阅读单选困难题查看答案及解析
I have a good friend c1. Mr White. He is the head of an office. He’s often b2. and has no time to do the housework. His wife knows him w3. and does all at home.
Bad luck! Their daughter was hurt in a traffic accident last month and has to be in h4. now. Mrs White has to look after her there and she c5. go home. Mr White often eats something in the r6.. As he never did any tidying, the rooms were all in a mess (混乱).
Yesterday morning, before Mr White got up, the telephone r7.. He sat up to answer it. His friend told him to w8. down an important telephone number. But he could find neither a pen nor a piece of paper. He found there was much dust (灰尘) on the table and wrote the number on it. But soon he f9. it and went to work. Two hours l10. his wife came back and looked for a sweater for her daughter. Her husband came in while she was tidying the rooms. He couldn’t see the number and shouted, “Who let you tidy the room? ”
九年级英语单词填空困难题查看答案及解析
—Look at the man running after the bus! Is that Mr. White?
—It ________ be him. He has gone to Shanghai.
A.couldn't B.mustn't C.can't D.wouldn't
九年级英语单选题困难题查看答案及解析
－Where is Mr. Wang?－He is not here. He ________ to the library.
A. has been B. has gone C. have been D. have gone
九年级英语单选题中等难度题查看答案及解析
---- Is that man Mr. Zhang?
---- It ______ be him. He has gone to Beijing for the meeting.
A. may not B. needn’t C. can’t D. mustn’t
九年级英语单项填空中等难度题查看答案及解析