1, d; 2、A; 3、A; 4、D; 5、A; 6、B; 7、A; 8、B; 9、E; 1、C; 11、C; 12、D; 13、E; 14、A; 15、D; 16、C; 17、A; 18、C; 19、B; 2、A; 21、D; 22、C; 23、A; 24、A; 25、B; 26、B; 27、D; 28、B; 29、C; 3、C; 31、C; 32、C; 33、C; 34、A; 35、A; 36、B; 37、A; 38、B; 39、A; 4、B; 41、B; 42、D; 43、B; 44、ACD; 45、D; 46、B; 47、A; 48、B; 49、C; 5、B; 51、B; 52、B; 53、B; 54、A; 55、B; 56、B; 57、A; 58、B; 59、B; 6、B; 61、B; 62、C; 63、B; 64、C; 65、B; 66、C; 67、A; 68、A; 69、C; 7、C。

2. The topic of common sense of life ~ ~ urgent need ~~

1. Eating too many eggs is not good for your health, so you can eat at most a few eggs a week.

(4) 2. What's the easiest disease for people who often eat midnight snacks? (Gastric cancer-because the stomach can't get a good rest) 3. It's best not to eat a few hours before going to bed, or you will get fat. (3 hours) 4. Lack of sleep will make you stupid, so how much time must you sleep as a primary school student? (8 hours) 5. When is the best sleep time? (1 pm-6 am) 6. What cancers are most likely to be caused by smoking? (Say two) (lung cancer, lip cancer, tongue cancer, laryngeal cancer, esophageal cancer, also related to bladder cancer) 7. The meat of old chickens is not easy to boil. If you add some flavoring agents and then slaughter them, the meat will easily boil? (Edible vinegar) 8. Please list more than three kinds of foods that should not be eaten in life.

(preserved eggs, stinky tofu, monosodium glutamate instant noodles, sunflower seeds, spinach, pork liver, roasted beef, mutton and pickled fried dough sticks) 9. Drinking more water is good for your health. How many glasses of water should you ensure at least every day? (8 cups) 1. What are the factors of hair loss, such as: eating spicy pots often. (2 or more) (Staying up late, stress, alcohol and tobacco, spicy chicken chops, spicy pots, greasy food, over-seasoned dishes) 11. Where did the "ice cream" come from? (UK) 12. When is a good time to eat fruit? (Before meals) 13. What does the dog use to dissipate heat when it is hot? (Tongue) 14. According to legend, among the four beauties in ancient China, Yang Yuhuan, Zhao Feiyan, Xi Shi and The Story Of Diu Sim, who can dance on the palm? (Zhao Feiyan) 15. What is the strawberry we usually eat? (Receptacle) 16. What color is commonly used in ancient palace buildings in China? (Red) 17. What is the earliest food crop planted by human beings? (Wheat) Galileo first invented the thermometer 18 or 4 years ago, so what was in the earliest thermometer? (Water) 19. What kind of alloy is the coin we use every day? 2. What are the three new concepts of Beijing's bid to host the 28 Olympic Games? One is the green Olympics, the other is the people's Olympics, and the other is what? (Hi-tech Olympics) 1. Question and answer questions: 1. How to remove the fishy smell from the knife? Scissors that have cut fish and kitchen knives that have cut meat will be stained with a fishy smell. As long as they are rubbed with ginger slices, the fishy smell can be removed.

2. how to deal with the soft biscuits when they are wet? You can blow it with a hair dryer for a few minutes. After the cookies are cooled, they are crisp as before. 3, how to get rid of, plant oil stains on clothes passive, vegetable oil pollution, squeeze some toothpaste on the stains, gently rub a few times, and then scrub with water, oil stains can be removed.

4. How to distinguish fresh milk? If it is spherical, it is fresh milk. If it drips on your nails and runs away, it means it is not fresh milk. 5. What is the wonderful use of tea pillows? Dry the soaked tea leaves in the sun, put them in a pillow, sleep soft and fragrant, and get rid of the fire.

6. How to remove ice cream stains can be scrubbed with gasoline. 7. What kind of boiled water to drink? The ideal boiled water is boiled for 5 minutes.

and this kind of water should be stored in a thermos with good heat preservation and should be changed every day. 8. When you are thirsty and there is no cold boiled water at home, how do you make the boiled water cool quickly? You can soak the cup with hot water in cold water and then sprinkle a handful of salt in the cold water.

in this way, the cooling of boiling water can be accelerated. 9. What is the best way to deal with fine ash particles entering the eyes? Fill a dish of clear water, immerse the eyes falling into the ash particles in the water and blink several times in a row.

1. What should I do if I want to get rid of the odor in rubber shoes? After washing and drying the worn rubber shoes, spray white wine into the rubber shoes (new rubber shoes can be sprayed directly) until they can't be absorbed, and then dry them. This way, you won't smell like feet.

11, "heartburn" disease, as long as you eat, you will feel uncomfortable. What can I eat to treat this disease? Eat a few pieces of white radish after a meal, and it will heal.

eating white radish is also effective when you have stomach trouble. 12, summer, a large number of fruits and vegetables listed, how to clean.

Before eating, soak the fruits and vegetables in salt water for 2~3 minutes to remove the residual pesticide or parasite eggs on the skin of the fruits and vegetables. Salt water can also kill some germs. 13. Is there any trick to cut big bread? You can heat the knife before cutting it.

This way, the bread will not be pressed and stuck together, nor will it be cut loosely, and it can be cut well regardless of thickness. 14. What should I do if I want to get rid of the odor in the refrigerator? Put a few pieces of the newly peeled citrus peel into the refrigerator. After one day, when the refrigerator is opened again, the peculiar smell is gone and the smell of citrus is emitted.

15. Aphids grow on vegetable leaves, which is not easy to wash and it is a pity to discard. So how should I clean it? If you soak it in salt water for a few minutes and take it out, then rinse it with running water, the aphids will be washed away easily.

second, grab the answer: 1. Why scrambled eggs don't need monosodium glutamate. Eggs contain sodium glutamate, which can produce delicious taste when heated.

If monosodium glutamate is put in scrambled eggs, it will affect the natural flavor of eggs and make them taste bad. At the same time, the repetition of umami flavor is also a waste. Therefore, scrambled eggs do not need to add monosodium glutamate.

2. What should I do if my pen doesn't go into the water? People who write a lot will touch the pen and don't get into the water. A clever way: put the pen tip into soapy water, press the capsule several times, then suck it with clear water several times, spin off the water, and then inhale the ink again to write smoothly. 3. Why not drink tea immediately after a meal? Tannic acid in tea can combine with iron and protein in food, which hinders absorption and can lead to anemia after a long time.

Therefore, you should have a little exercise and rest after meals before drinking tea. 4. How to remove gum stains from clothes? Put the clothes that are difficult to wash with chewing gum in the refrigerator for a period of time, and the sugar stains will become brittle, and you can peel them off with a knife.

5. Why should new underwear be washed before wearing? In the process of making underwear, garment factories often use formaldehyde resin, fluorescent whitening agent, ionic resin, pulp and other chemical additives to achieve the purpose of shrink-proof, whitening, smooth, crisp and beautiful. If you wear it on your body without cleaning, the chemical additives left on your clothes will make your skin itchy and red or cause allergic reactions such as rash, which is harmful to your health.

Therefore, the new underwear you just bought must be washed before you wear it. 6. Please tell me how to prevent dental caries. Tea gargle method Tea contains fluorine, which can strengthen teeth.

Tea is an alkali, which can neutralize acid, prevent dental caries and inhibit some germs. 7. Please tell me a simple method to kill mosquitoes? Use an empty wine.

3. Life science common sense contest questions

Living little knowledge

Five methods for cleaning carpet stains

1. Oil smoke trace. Use a brush to dip in concentrated salt solution and brush it several times; Cotton yarn can also be used to get rid of gasoline with high purity.

2. Fruit juice trace. You can soak the stain with 8% ammonia water solution, and then use a brush to dip in the ammonia water solution and brush it off.

3. ink marks. You can sprinkle some fine salt powder on the dirty place, and then brush it off with wet soapy water; Old ink stains should be soaked with fresh milk, and then washed repeatedly with a brush dipped in fresh milk.

4. traces of fruit wine and beer. First dip cotton yarn or soft cloth into warm washing powder solution and wipe it, then clean it with warm water and a small amount of edible vinegar solution.

5. animal and plant oil traces. Dip cotton yarn in gasoline with high purity and wipe it repeatedly; You can also use detergent to brush.

Three ways to clean the range hood quickly

The range hood is a good helper in the modern family kitchen, but how to clean the range hood is often a big headache for families. Here are three simple cleaning methods:

1. Steam washing in pressure cooker. Boil the cold water in the pressure cooker. When steam is continuously discharged, take the lower pressure valve, open the range hood, and aim the steam water column at the rotating fan blades. Because the high-heat steam continuously rushes into the fan blades and other parts, the oily sewage will flow into the waste oil cup along the way until there is no oil in the oil cup.

2. Detergent and vinegar soaking method. Remove the oil-smoke-extracting impeller, soak it in a basin of warm water mixed with 3-5 drops of detergent and 5 ml of vinegar, soak it for 1-2 minutes, and then

scrub it with a clean rag. The shell and other parts are also cleaned with this solution. This method has no damage to human skin and no corrosion to devices, and the surface still maintains its original luster after cleaning.

3. Soap liquid surface coating method. Make the soap into paste, and then smear it on the surface of the impeller and other devices. After the range hood has been used for a period of time, remove the impeller and other devices, and wipe them with a rag, and

the oil stain will fall off.

a clever way to polish the stainless steel pool

1. Wipe it with discarded plastic wrap. Roll up the used plastic wrap into a ball and use it to wipe the inner wall of the pool. You will find that the pool becomes bright and clean. It's a great pity to throw away the plastic wrap once before.

2. Wipe with plastic bags containing fruits, roll the collected plastic bags containing fruits into a round ball, and put some detergent in the stained place, which will have better effect.

3. Soak the towel in beer and then pour it into the sink, which can get a quick and clean effect.

How to prevent the wool clothing from being eaten by insects

(1) Before collection, remove dirt and dust, and then put it in a cool and ventilated place to dry. If possible, it is best to iron it to prevent the breeding and reproduction of moths and achieve the purpose of killing insects and sterilizing.

(2) All kinds of woolen clothes should be hung and stored in the wardrobe with hangers. If there is no hanging condition, they should be wrapped in cloth and put on the upper floor of the suitcase. When storing, try to put the reverse side outward. This has two advantages: first, it can prevent weathering and fading; Second, it is more beneficial to prevent moisture and insects.

(3) Pure wool fabric is acid-resistant and alkali-resistant, and it is easy to be eaten by insects. Mothballs and sanitary balls are effective insect repellents. Wrap mothballs or health balls in cloth, put them around the wardrobe or hang them in the cabinet, so that insects will not generally eat.

(4) Woolen clothes should be stored in a ventilated place, and the clothes should be aired several times according to the seasonal changes and the storage time. Long-term sealing without ventilation is the cause of moth-eaten.

tips for preserving negatives

negatives should be sandwiched between soft and smooth white papers to prevent dust or other sundries, and the whole roll of negatives should be cut and stored separately to avoid rubbing and scratching. Avoid sun exposure and

moisture. It's best to put the negatives in a small pocket of the negative book and take them out when you use them. To look at the negative, you should hold the margin of the negative and never touch the middle of the picture to avoid leaving a wipe. The following methods can be used to deal with problems in the process of taking and storing negatives due to improper treatment.

(1) There are fingerprints on the negative film, which can be dipped in clean water for slight ones, and scrubbed with clean soft cloth dipped in carbon tetrachloride for heavy ones.

(2) If the film is stained with dust or stuck with paper, it can be immersed in clear water. When the film is wet and soft, the impurities on the film are washed away and taken out to dry.

(3) If there are slight scratches on the film, you can soak the film in 1% acetic acid solution and take it out to dry.

(4) When the negative film turns yellow and discolors, rinse it in the mixed solution of 25% citric acid and thiourea for 3-5 minutes, and then take it out to recover.

4. Write an activity plan for the life knowledge contest organized by the Life Department of the Student Union

1. The purpose of the contest: to promote the exchange and study among students, enrich their extracurricular cultural life, stimulate their potential, and enable them to master more life knowledge and tips.

provide convenience for daily life and study, and create a good living and study environment. 2. Participants: xx dormitory is the unit without at least one dormitory, and each class has at least three students. 3. Registration method: the person in charge of each class will report the personnel to XX, and there is no charge for registration.

iv. Schedule: 1. The first round of the knockout round will unify the applicants and carry out the knockout round. Ask questions in the form of true or false questions, and stand in two teams according to the different answers. For example, if you ask whether sweaters can be dry-cleaned, stand in one team if you think they can, stand in one team if you think they can't, and leave if you answer wrong.

repeat this, and take 2 people to enter the second round. If there are less than 2 remaining players, one player who answered incorrectly in the last time will be randomly selected to ask questions, and if he answers correctly, he will enter the next round of competition with the players on the field, so that 2 players will be selected.

When answering wrong questions, players can apply for talents to save themselves and show their talents to the audience, and it is up to the audience to decide whether to stay on the court. If more than one person applies for talent self-help, choose the one who is most loved by the audience to stay.

The title of this round of competition should be close to daily life, around the theme of the competition, as novel and interesting as possible, and should not be too difficult. 2 The rules of the second round of integral competition A: the integral competition is scored in the form of signs, and each sign scores one point. The signs can be cartoon patterns, etc. In the competition, the players have the right to ask the audience for help once.

if you get a correct answer, you won't be penalized if you get a wrong answer. B Grouping and schedule arrangement: Divide the 2 players decided in the first round into five groups with four players in each group. The grouping is based on the principle of fairness, and try to avoid the players in the same class being grouped in one group, which is conducive to organizing students to cheer on the scene and enhancing the competition atmosphere.

each group will decide the group champion, and the five group champions will advance to the final, with one first prize, one second prize and three third prizes in total. Competition form C: The first stage of the group competition is the actual hands-on competition to fold quilts and clothes. According to the speed and neatness, the judges rank the first with four marks, the second with three, and so on. The second stage is the question and answer of five questions for each person (the topic is randomly selected by the host), and the correct one is given a mark, and the one that can tell the principle is given another mark, and the wrong one is not given a mark.

5. First place xxxxx, second place xxxxx, third place xxxxx in the racer award.