Use For Use for mechanically generated dusts, mists from processing minerals including coal, iron ore, silica, cotton, flour and certain other substances in concentrations up to ten times the Occupational Exposure Standard or according to local regulations. Do Not Use For Do not use for paint spraying and sandblasting applications or for protecting against gases and vapors. Do not use in atmospheres containing less than 19.5% oxygen, as this respirator does not supply oxygen. Not for use in oil mist atmosphere. Use Limitations 1. The wearer must first be trained in the proper use and fit tested before using this respirator. 2. Do not use this respirator when concentrations of contaminants are immediately dangerous to life or health. 3. Leave the contaminated area immediately if breathing becomes difficult, or dizziness or other distress occurs. 4. Discard and replace respirator if it becomes damaged or breathing resistance becomes excessive. 5. Inspect respirator before each use to ensure it is in good working condition. 6. Do not alter, wash, abuse or misuse this respirator. 7. Do not use with beards or other facial hair or other conditions that prevent a good seal between the face and the sealing edge of the respirator. 8. Can be used up to the limits specified by applicable government regulations for this product. 9. Failure to follow all instructions and warnings on the use of this respirator and/or failure to wear this respirator during all times of exposure can reduce respirator effectiveness and may result in illness or permanent disability 10. Maximum operating temperature: +50°C. Caution Care should be taken when using the product at low temperatures as excessive moisture may cause alves(呼吸阀) to freeze. Storage Conditions and Shelf Life Shelf life of unopened product is 5 years from date of manufacture when stored within temperature range of -20°C to +30°C and at less than 80% relative humidity. Warning This respirator helps protect against certain particles. Misuse can result in sickness or death. For proper use, see supervisor or user instructions in the box or contact 3M Co. Ltd. |
1.The passage mainly tells us _________.
A. what this product is
B. why should we buy this product
C. how to protect us against dusts and mists
D. how to use and store the product properly
2.What is the meaning of the underlined word “respirator” in Paragraph 2?
A. Glasses.
B. Face mask.
C. Protective gloves.
D. Protective clothing.
3.In which condition can this product be stored?
A. Temperature: 50°C; Humidity: 40%
B. Temperature: 50°C; Humidity: 80%
C. Temperature: 25°C; Humidity: 40%
D. Temperature: 25°C; Humidity: 80%
Head held high, hands firmly gripping her walker, Mary Arnott, 99, walks slowly with dignity through the women’s changing room at the Etobicoke Olympium pool, past the teenage girls who have been blow-drying their hair for half an hour, into the mist of the showers, then out the door and first one into the heated pool. She jumps over to the shallow end, stopping to talk to friends—everyone knows Arnott here; she swims twice a week and treats it as a job—about their children, the viciousness(谬误) of bridge and their health.
In fact, Arnott is an exception to the exception. Not only has she lived 20 years past the average lifespan for Canadians, she’s healthy, her mind is sharp and she lives independently.
Born in Brooklyn on May 28, 1909, Arnott was raised on Staten Island. She survived scarlet fever(猩红热), helped bring up four siblings after her mother died in 1923 and worked as a secretary in New York City for 12 years, earning＄35 a week and a＄150 bonus at Christmas.
Now she’s happy living in a one-room apartment with a kitchen and a bathroom in her daughter’s house. She wears a hearing aid, does the cryptic(有隐义的) crossword with a magnifying glass, and can’t really explain why she has live so well so long.
Until recently, she has still liked to drink red wine—she used to drink two glasses before supper each day. It’s more likely genes, she admits. Her interest in other people and life in general may have had something to do with it. Asked if a star photographer can take her picture at the pool, Arnott seems cheerful.
“I look good in a swimsuit,” she says, nodding her head firmly. “I look better in a swimsuit than I do in pants. ”
1.What can we learn from the first paragraph?
A. Mary Arnott can’t swim but she likes water.
B. Mary Arnott is afraid to swim at the swimming pool.
C. Mary Arnott likes to swim and is known to the local people.
D. Mary Arnott just likes to talk to her friends at the bank of the swimming pool.
2.Which of the following is TRUE as for Mary Arnott as an exception to the exception?
A. She lives with her daughter.
B. She’s healthy and her mind is sharp.
C. She likes to live with her children and has a happy life.
D. She has lived 30 years past the average lifespan for Canadians.
3.If someone asks about swimming, Mary Arnott may ________.
A. like swimsuit better B. like pants
C. like to sit at the bank D. like to swim with girls
We all need a healthy environment. , we produce waste every day and it harm to our environment. Though we are young, we can still do to help. In fact, even the simplest everyday activities can make a real to the environment. Here are some ideas for you to live a life.
Remember these three : reduce, reuse and recycle.
Reduce means “use less”. Don't things. This saves money and reduces pollution and waste going into the environment. Before we buy something new, think if it is really or maybe the one will be just as good! When we do buy things, choose local products if possible, and try not to buy too many things from a country.
Reuse means “use again”. Use things for possible. When we buy things, make sure that they a long time. We should take care of them they will last, and we should them if we can instead of throwing them away and buying new ones. Don't use a paper cup or a paper bag. It’s better to use a china cup and a lunch box because you can use them .
Recycle means “change things into something else”. Although it energy to change something into something else, it’s better than things or burning them. Find out can be recycled in your neighborhood and take part in recycling programs. We should also buy made from recycled materials, such as recycled paper, to help save .
1.A. Therefore B. However C. Otherwise D. Besides
2.A. gives B. takes C. causes D. does
3.A. something B. everything C. nothing D. anything
4.A. difference B. mistake C. effect D. help
5.A. busy B. hard C. green D. happy
6.A. letters B. words C. sentences D. lessons
7.A. buy B. produce C. save D. waste
8.A. necessary B. important C. helpful D. useful
9.A. cheap B. expensive C. new D. old
10.A. rich B. developed C. foreign D. poor
11.A. as soon as B. as long as C. as much as D. as well as
12.A. use B. last C. keep D. live
13.A. so that B. if C. because D. though
14.A. sell B. lend C. throw D. repair
15.A. less B. more C. again D. better
16.A. costs B. spends C. takes D. pays
17.A. throwing away B. putting away C. taking away D. giving away
18.A. that B. which C. what D. how
19.A. cups B. bags C. boxes D. products
20.A. money B. trees C. paper D. Time
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共
有10处语言错误，每句中最多有两处。每处错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(Λ)，并在其下面写出该加的词。
删除：把多余的词用斜线(＼)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：
1．每处错误及其修改均仅限一词；
2．只允许修改10处，多者(从第11处起)不计分。
Our school will set a voluntary service club on April 22nd. The main purpose of it is to call on and organize students to serve for society better and develop our ability to cooperate to others.
The volunteers are required to work at weekends to visit the elderly in the nursing homes in our city, keep public places clean and offer some guidances to the passengers in some stations and so on. The students which are healthy, patience, warm-hearted and willing to help others are welcome to join the club. Whether you are interested and want to become a member of it, please you’re your application to the Students’ Union before March 15th. The office of the Students’ Union will contact the choosing candidates for a interview in a few days.
March 8th
The Students’ Union
Last year, I was on a trip in Sanxiarenjia in Yichang,Hubei. I waited for the boat 1. (take) me along the Yijiang River. Out of nowhere, a shirtless man ran up to me and asked to take a photo with me. 2. both smiled as he said I was the first foreigner he had ever seen. He said “thank you” and ran off again.
The experience was funny, and it wasn’t the first time this 3. (happen) to me. In fact, almost all the foreigners I know in China have experienced the 4. thing. Girls with blonde hair seem to be the most 5. (photograph). Most of them were surprised at first, but they now enjoy having their photo taken with happy students.
Of course, many countries in the West are home to different ethnicities. So it is normal to see people 6. look different. But it’s different in many areas of China.
Personally, I think it’s fine to take photos with strangers. But try to ask first. Once I 7. (wait) for my friend in an art district when a group of girls began giggling (咯咯地笑) at their phones. I noticed one of them was pointing the camera at me, 8. (secret) taking photos. When I spotted them, they smiled and asked if they 9. take a photo with me. Maybe it is shyness, but I prefer when people ask 10. they take a photo. Most foreigners will say yes.
The most famous animal said to be capable of counting was a horse in Germany at the beginning of the 19th century called Clever Hans. The horse’s owner that animals could think and reason as we can and that this could come from training them. He trained Clever Hans to give the to arithmetic (算术的) problems; the horse gave the correct answer by the right number of times with its forefoot. The animal gave the correct answers not only to additions but to other arithmetic, too. It also gave the right answers when the questions were shown to it on a card.
This was talked about so much that scientists studied the horse’s . The committee, after a(n) study, found that Clever Hans’ owner and trainer was . He had not deliberately trained his horse to stop tapping by giving it a slight . Members of the committee got the right answers from Hans when the owner wasn’t there, that this type of trickery (诡计) hadn’t happened.
It looked as if the horse really could think and . But soon after this another scientist found that if the horse was asked questions to which none of the people there knew the answers, then the animal gave a correct answer. The questions were asked by showing the horse a card that the questioner himself had not .
This biologist soon discovered that the horse had actually to very slight unconscious (下意识的) movements of head or body made by a questioner who knew the number of taps. He counted the taps to himself, and when the horse got to the right number, the questioner’s tension (紧张感) was by a small, unconscious movement of his head or body. The horse then tapping. Questioners who didn’t know the answer didn’t do this. The horse had really itself to answer these very small during its training.
1.A. believed B.remembered C. expected D.doubted
2.A. chance B. knowledge C. method D. ability
3.A. explanations B. information C.answers D. facts
4.A. jumping B. tapping C. moving D.dropping
5.A. problem B.program C.case D. model
6.A. interests B.activities C.habits D. powers
7.A. careful B.simple C. general D. extra
8.A. honest B. creative C.independent D.patient
9.A. praise B. hint C.trust D. attention
10.A. still B.nearly C.even D. only
11.A. knowing B.considering C.pretending D. proving
12.A. work B.play C. count D.argue
13.A. never B. sometimes C. always D.ever
14.A. designed B. read C. improved D.answered
15.A. responded B. returned C. complained D.compared
16.A. various B. correct C. strange D. direct
17.A. ignored B. checked C.offered D. shown
18.A. Practiced B. continued C. stopped D.began
19.A. permitted B. taught C. regretted D. forced
20.A. suggestions B.instructions C. questions D. movements
