Today, we know that sleep is important for good physical and mental (精神的) health. We have also learned that while a person is asleep, the brain is very active.
（3） To understand the mystery of sleep, scientists study brain waves. By doing this they have learned that there are five steps of sleep. Sleep in step one is very light. During this time, a person is woken up
easily. As we move into step two, our eyes stop moving and our brain waves move more slowly. During steps three and four (often called ‘deep sleep’), it is very hard to wake a person up. During this time, the body repairs itself and makes more cells (细胞). In children and young adults, the body makes a chemical (化学物质) used for growing. In the next step—REM sleep—we begin to breathe faster and our eyes move around quickly, but our bodies do not move. During this step, we dream.
（4）The total time of sleep that each person needs is different, and is often connected to age. In general, babies need fifteen to sixteen
hours of sleep a day. Children and teenagers need nine to
ten hours, while adults need six to eight. Otherwise, if a person doesn’t have enough sleep ——
especially deep and REM sleep, he may become sick more easily. Doctors also think that REM
sleep is very important for learning, thinking and memory.
Scientists continue learning more about sleep, but one thing they know for sure is this: for humans, it is as important as food and water. A.根据短文内容简要回答问题。
1. What do the scientists study to find out the mystery of sleep?
_____________________________________________________________________ 2. What does Hua Nan think about no-teacher exams?
_____________________________________________________________________ 将短文中划线的两个句子译成汉语。
3.___________________________________________________________________ 4.___________________________________________________________________ 5.请给文章拟一个适当的题目。
_____________________________________________________________________
最新中考英语阅读表达（45）
In Western countries punctuality is very important.
In the business world, people often have very busy timetables. They may have something planned for every hour of the working day. This means that meetings are sometimes set up months before.
If a seller has agreed to meet a buyer at a given time, he or she will want the seller to be there at that time. If the person shows up late, there may be a problem. The buyer may not want to do business because of the lateness.
If a person is late it says he and his company aren't reliable (可靠的). If a meeting has to be put off, then the person who is being met should be told quickly. It is also expected that friends will turn up on time for meetings with each other. It is thought rude to be late. If two friends plan to meet in a cafe, and one of them is very late, the other may be upset. To leave friends sitting on their own, with nothing to do, may embarrass (使尴尬) them.4 It says to them that
their friend doesn't really care about them.
At other times rules are more relaxed. In Britain, for example, if someone throws a party on a Saturday evening, many people will be asked to come. The host may say that the party will last \long time. It will be all right for a person to arrive at some time during the party. They don't need to come promptly (迅速地) at 8 o'clock. A. 根据短文内容简要回答下列问题。
1. What’s result when the seller shows up late to meet a buyer?
_____________________________________________________________________ 2. When is OK for you to come if you are told a party will last “from 8 till late in Britain”?
_____________________________________________________________________ B. 3. 根据短文内容，猜测黑体单词“punctuality”的汉语意思。
4. 将文中划线的句子翻译成汉语。
_____________________________________________________________________ C. 5. 根据短文内容，写出能概括全文大意的句子。 _________________________________________________
最新中考英语阅读表达（46）
The 2008 Beijing Olympic Games are drawing near. Are you looking
forward to（盼望） watching the matches? If so, here are some suggestions you need to know about audience manners.
Most sporting arenas (赛场) have rules for audience which are written on the back of the tickets. Read your ticket carefully before you arrive. Try to reach your seat half an hour before the start of the event and don’t walk about when a game is being held. When you leave, remember to take away your soft drink bottles and other
rubbish.
During exciting games, try to control yourself. Don’t criticize (批评) the performance（表演） of players and coaches. （3）Be careful with your words, since some may cause anger among other people in the audience. Applause is a special form of body language you can use to communicate (交流) with players. But you should do it properly. When players first appear, clap your hands together to welcome them; don’t go on for too long. After an excellent performance, applaud (鼓掌) warmly.
Applause is not welcome, however, while a game is being held and the players need to focus all their attention. Different sports have different rules for audience. Enjoying artistic gymnastics (艺术体操) requires silence. But lots of cheering can really help basketball and football players. Using flash (闪光灯) to take photos is quite disturbing to tennis players. Mobile phones can not be used in shooting centers.
（4）To be a good spectator (观众), you should take time to learn the game-related（相关的） rules and audience manners of each event. A.根据短文内容简要回答问题。
1. Must we clap our hands together to welcome players for a long time when they first appear?
_____________________________________________________________________ 2. How can we become a good spectator?
_____________________________________________________________________ 将短文中划线的两个句子译成汉语。
3.___________________________________________________________________ 4.___________________________________________________________________ 5.请给文章拟一个适当的题目。
_____________________________________________________________________
最新中考英语阅读表达（47）
Leaves are nature’s food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide (CO2) from the air. Plants use sunlight to turn water and CO2 into glucose(葡萄糖). Glucose is a kind of sugar. (3)Plants use glucose as food for energy to grow. The way plants turn water and CO2 into glucose is called photosynthesis(光合作用). That means “putting together with light”. A chemical called chlorophyll
helps make photosynthesis happen. It gives plants their green color.
As summer ends and autumn comes, the days get shorter and shorter. This is how the trees “know” to begin getting ready for winter.
(4)During winter, there is not enough light or water for photosynthesis. The trees will rest and live on the food they have stored during the summer. They begin to close their food-making factories.
The green chlorophyll disappears from the leaves. Then, we begin to see yellow and orange colors. A few of these colors stay in the leaves all the time. We just can’t see them in the summer, because they are covered up by the green chlorophyll.
Red and purple colors we see in leaves are made mostly in the autumn. In some trees, like maples (枫树) , glucose is stored in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into red. The brown color of trees like oaks (橡树) is made from wastes left in the leaves.
A.根据短文内容简要回答问题。
1. Which picture shows how photosynthesis happens correctly? CARBON DIOXIDE (CO2) CARBON DIOXIDE (CO2) CARBON DIOXIDE (CO2) GLUCOSPHOTOSYNTE 光合作用 GLUCOSPHOTOSYNE 光合作用 GLUCOSPHOTOSYNTE 光合作用