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¡¾´ð°¸¡¿Playing Kongzhu is a very popular sport in China. It has a long history and it is very famous in my hometown£¬Tianjin.
Kongzhu is made of bamboo and is hollow inside£¬so it gets its name£¬¡°Kongzhu¡±£®It can give a buzzing sound when you play it. Although Kongzhu is small£¬you can exercise your whole body and people of all ages can play it all year round. Kongzhu is also played on many TV programs. It's so wonderful and many people like it.
Playing Kongzhu is good for my health and I love it.
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66.Xiao Ming is interested in astronomy (ÌìÎÄѧ)£®Is it hot or cold on the stars£¿What are the stars made of£¿ |
67.Kate has long and beautiful hair.She says she always uses a certain shampoo (Ï´·¢Ë®)£®Why do the shampoos make hairs clean and smooth£¿ |
68.Why can all the plants be grown well in the soil£¿Which materials contain (°üº¬) in the soil£¿John wants to know the answer. |
69.I wonder the origin of the universe£¬and its form£¬its constitute...Can you tell me£¿ |
70.Candles give us light in the dark.But do you know what in the candles can burn to light£¿ |
A.Until about thirty years ago£¬astronomers thought that it was composed almost entirely of this ¡°baryonic matter (ÖØ×ÓÎïÖÊ)¡±£¬ordinary atoms (Ô×Ó)£®However£¬in the past few decades£¬there has been even more evidence accumulating that suggests there is something in it that we can not see£¬perhaps some new form of matter. |
B.They are composed primarily of chemicals called surfactants (±íÃæ»îÐÔ¼Á) that have the special ability to surround oily materials on surfaces and allow them to be rinsed away while washing the hair by water. |
C.They are made out of wax (À¯) and contain fragrances£¬minor additives£¬colorants and come in a variety of shapes and size. |
D.It is a combination of both living and nonliving materials.One part of it is brokendown rock.Another is organic matter made up of decaying (¸¯ÀõÄ) plants and animals.Water and air are also a part of it. |
E.Some of them£¬such as polystyrene£¬are composed of monomers that contain only carbon and hydrogen (Çâ)£®All organic plastics include a long backbone of carbon. |
F.Basically£¬they are big exploding (±¬Õ¨µÄ) balls of gas£¬mostly hydrogen and helium (º¤)£®The nearest one to us£¬the sun£¬is so hot that the huge amount of hydrogen is undergoing a constant starwide unclear reaction£¬like in a hydrogen bomb. |
G.It depends upon the kind.Most of them are made from collagen/gelatin (½ºÔµ°°×)£¬which comes from the skin£¬bones and hooves of horses£¬pigs and cows. |
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Living a healthy life
It's important for us to live a healthy life.
In a word, the healthier life we live, the happier we will feel.
¡¾ÌâÄ¿¡¿School is a good place for us to study. Yet sometimes, it's easy for us to have accidents there. Experts suggest that right safety training could avoid 80% of these accidents. Here are parts of safety rules in some countries.
In China, fire training at school is common to teach students to deal with emergencies (½ô¼±Çé¿ö). During the training, students hurry to the playground with a wet cloth covering their mouth. Fire training is held each term. |
In Japan, public elementary schools hold earthquake training once a month. They teach students how to escape during an earthquake without pushing. |
Most US school buildings have fire escapes on each floor. A fire escape has platforms (¶̨) with ladders (ÌÝ×Ó). |
In many middle schools in the UK, students can choose to take a bicycle course. There, they learn how to ride to school safely. |
¡¾1¡¿________ countries are mentioned in this passage.
A. Two B. Three C. Four D. Five
¡¾2¡¿Students should receive right safety training because ________£®
A. it is easy
B. it could avoid most of these accidents
C. it is interesting
D. it is accepted by the teachers
¡¾3¡¿If there is a fire, Chinese students should go to the playground hurriedly ________£®
A. with a wet cloth covering their mouth
B. by using ladders
C. by bike
D. by pushing each other
¡¾4¡¿Public elementary schools in Japan hold earthquake training ________£®
A. once a week B. once a month
C. once a year D. every day
¡¾5¡¿This passage mainly talks about ________£®
A. how to escape from earthquakes
B. how to put out the fire
C. some school safety rules in some countries
D. a bicycle course