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At school, the children only do a few minutes of sports or never do any sports. The teachers must know it isn’t good for their health.
We always think of ways to keep healthy. We must eat more vegetables and fruit, do enough sport every day. And we should watch TV and read in right ways.
【小题1】Many students stay at home and watch TV from morning to night .
A.on Fridays | B.from Monday to Friday |
C.on Saturday | D.on Saturday and Sunday |
A.Meat. | B.Fish. | C.Vegetables. | D.Chicken. |
A.do a few minutes of sport | B.never do any sports |
C.do enough sport every day | D.All of the above. |
A.Eat more vegetables and fruit. | B.Do enough sports every day. |
C.Watch TV in right ways. | D.All of the above. |
A.From Monday to Friday, some students watch TV from morning to night. |
B.Eating more vegetables and fruit is good for their health. |
C.They should do enough sport. |
D.They should read in right ways. |
Maybe our lack(缺乏) of sleep is because of laziness — I think I’m a rather lazy student — or maybe it’s because we have too much to do in American high schools. I usually go to bed around midnight. If I stayed up past 1:30 am, I wouldn’t get any work done. I’d be falling asleep at my computer. My classes begin at 7:30 am. I’m partly awake in my first class. By the second, I’m a little sleepy. By my third class, I’m sleepy. By midday I’m finally fully awake. But by 3:00 pm, I’m slowing down again. Yet I get more sleep than usual students.
Most American high schools seem to have a similar(相似的) problem with sleepy students. High school classes start at 7:30 am, so students have to get up one and a half hours before that to get ready and catch the bus. It’s believed that lack of sleep can be bad for both grades and health. Some schools are paying attention. Classes in those schools start at 8:30 am.
【小题1】What does the underlined sentence “it’s close to the truth” mean?
A.It doesn’t tell the truth. | B.It is quite true. |
C.It is impossible. | D.I don’t think it’s right. |
A.They play computer games. | B.They watch videos late. |
C.They have to do a lot of housework. | D.They have to do a lot of homework. |
A.At 7:30 am. | B.At 6:00 am. | C.At 9:00 am. | D.At about 7:00 am. |
A.The writer usually stays up past 1:30 am. |
B.The writer usually goes to bed around midnight. |
C.The writer usually does a survey. |
D.Many American students don’t get enough sleep, so they can have high grades. |
A.Something has to be done to solve the problem of students’ lack of sleep. |
B.Many American high school students are sleepy in class. |
C.Many kids have too much homework to do. |
D.Students can’t play computer games. |
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Many desserts are covered in sand. But some have mountains, rocks, or lakes that have dried up in the heat. The Great American Dessert has cliffs(悬崖) that have been made into amazing and beautiful shapes by the wind. The Sahara Desert in Africa is mostly sand. The Australian Desert has red sand.
Sometimes it does not rain for a whole year in the desert. But there is water deep under the ground and some plants have roots that go very deep to find it. Other plants have roots that spread out(延伸) a long way so they can suck up the rain as soon as it falls.
One desert plant is the cactus, which has long, spreading roots. The cactus stores water inside its hard skin. This skin protects it from heat and cold.
Camels are a bit like cactus plants! They store water too—inside their bodies. They have special fur which protects them from the sun during the day and keeps them warm at night.
Some other animals live in deserts, too. They have to be very good at seeing and hearing because most of them only come out at night. This is why many desert animals have extra big eyes or ears.
A desert fox has bigger ears than a normal for. A gerbil has huge eye, so that it can see at night. It stays cool in the day by staying underground, like most desert animals.
Some people live in the desert but they always make their homes near an oasis. An oasis is where water comes from an underground river. Near an oasis, people can grow lots of plants and keep animals.
Life is hard in the desert, for people, animals and plants. But desert people like to live there.
【小题1】A desert is very dry because__________.
A.it is sandy | B.there is so little rain |
C.the wind is strong | D.there is no water deep under the ground |
A.围堵 | B.讨好 | C.释放 | D.吸收 |
A.the sunlight is too strong in the day | B.they need to see and hear well at night |
C.it is very cold at nigh | D.they store water in them. |
A.storing water in side their bodies | B.drinking water as much as they can |
C.staying underground | D.growing lots of plants |
A.Desert people like to live in the desert though life is hard. |
B.People in the desert usually fry eggs on the ground. |
C.Camels have special fur to store water. |
D.All the deserts are covered in sand. |
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Number one is a sign with the number thirty on it. When drivers see this sign , they must not go at more than thirty kilometers can hour. We see this sign when we are getting near a town. Number two is a sign that we're near a crossing. We must drive carefully. Number three is a sign that there is a bend in the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number four is a sign that there is another road coming in from the right. There is a junction at this place. Number five is a sign that there is a hill and number six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number seven has the word “ SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number eight is a sign with the letter “ P ” on it. The letter “ P ” means “ Parking ”. At some places, there're the signs “ No parking ” or “ No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.
【小题1】At the places where you see Sign 1, .
A.you are already out of a town |
B.you still have thirty kilometers to go |
C.there must be many houses and buildings not far away |
D.there must be a town thirty k8ilometers away |
A.traffic | B.subway |
C.turning | D.danger |
A.each of the eight signs |
B.either of Signs 2 and 3 |
C.all of Signs 2, 4, 6 and 7 |
D.any of Signs 3, 5, 6 and 7 |
A.teach drivers lesson |
B.make drivers even safer |
C.stop cars going there |
D.learn another kind of language |
A.Another language. |
B.On the road. |
C.What to do. |
D.Traffic signs. |
A sign is another kind of language. Here are some of them that you see on the roads.
Number one is a sign with the number thirty on it. When drivers see this sign , they must not go at more than thirty kilometers can hour. We see this sign when we are getting near a town. Number two is a sign that we're near a crossing. We must drive carefully. Number three is a sign that there is a bend in the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number four is a sign that there is another road coming in from the right. There is a junction at this place. Number five is a sign that there is a hill and number six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number seven has the word “ SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number eight is a sign with the letter “ P ” on it. The letter “ P ” means “ Parking ”. At some places, there're the signs “ No parking ” or “ No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.
【小题1】At the places where you see Sign 1, .
A.you are already out of a town |
B.you still have thirty kilometers to go |
C.there must be many houses and buildings not far away |
D.there must be a town thirty k8ilometers away |
A.traffic | B.subway |
C.turning | D.danger |
A.each of the eight signs |
B.either of Signs 2 and 3 |
C.all of Signs 2, 4, 6 and 7 |
D.any of Signs 3, 5, 6 and 7 |
A.teach drivers lesson |
B.make drivers even safer |
C.stop cars going there |
D.learn another kind of language |
A.Another language. |
B.On the road. |
C.What to do. |
D.Traffic signs. |