①Chemistry is everywhere in our daily life.Sometimes it's easy to see.At other times, it can be very hard to see the everyday chemistry at work,but nearly everything you touch has some chemicals(化学物质)in it.
②Chemistry helps to make products for use.Something as simple as toothpaste has at least three chemicals that keep your teeth clean.Other things in your daily life are created by chemistry,such as hair products and soap.Without chemistry, we would never have known that we need soap to get the oil out of clothes.
③Chemistry also helps us understand the world around us.Thanks to chemistry, we know bleach(漂白剂) can′t be mixed with vinegar(醋) , because the mixture can produce harmful gas.
④Chemistry plays a big role in food preparation.Cooking food causes it to go through a chemical change.That is the reason why cooked food often tastes different from uncooked food.Too much or too little of any chemical material makes a difference to the result of baking(烘焙).For example, the cake can be too soft or too hard.
⑤Chemistry isn′t something that just lives in a laboratory; it's something that you meet hundreds of times in life.Knowing how chemistry works will give you a greater understanding of the life.
(1)What can the chemistry in soap help us?
A. |
To clean the teeth. |
B. |
To make the teeth strong. |
C. |
To clean the oil off clothes. |
D. |
To make the clothes new. |
(2)From the third paragraph, we know that .
A. |
we can mix bleach with vinegar |
B. |
the mixture can produce useful gas |
C. |
we can't mix bleach with vinegar |
D. |
chemistry can't help us make products |
(3)The fourth paragraph mainly tells us that .
A. |
cooked food is much better than uncooked food |
B. |
chemistry plays a big role in food preparation |
C. |
there are no chemical changes while we are cooking |
D. |
the cake can′t be too soft or too hard with chemistry |
(4)Which of the following shows the structure(结构) of the passage?(①=Paragraph 1) _____
(5)What's the main idea of the passage?
A. |
Chemistry and food. |
B. |
Chemistry around the world. |
C. |
Chemistry and products. |
D. |
Chemistry in everyday life. |
Many teenagers feel that the most important people in their lives are their friends. They believe that their family members, especially their parents, don’t know them as well as their friends do. In a large family, it is quite often for brothers and sisters to fight with each other and then they only go to their friends for getting ideas.
It is very important for teenagers to have one good friend or a circle of friends. Even when they are not with their friends, they usually spend a lot of time talking among them on the phone. This communication is very important in children’s growing up, because they can not discuss something difficult to their family members.
Parents often try to choose their children’s friends for them.Some parents may even stop their children from meeting their good friends: The question of “choice” is an interesting one. Have you ever thought of the following questions?
Who choose your friends?
Do you choose your friend or your friends choose you?
Have you got a good friend your parents don’t like?
Your answers are welcome.Who know them better than their parents for the teenagers?
A.Their parents. | B.Their friends. |
C.Brothers and sisters. | D.Family members. |
How do they communicate when the teenagers stay alone?
A.Go to their friends. |
B.Talk with their parents: |
C.Talk with their friends on the phone. |
D.Have a discussion with their family by phone. |
Which of the following sentences is true?
A.Parents should like everything their children enjoy. |
B.In all families, children can choose everything they like. |
C.Teenagers can only go to their friends for help. |
D.Parents should try their best to understand their children better. |
What is the meaning for “Your answers are welcome. ”?
A.You are welcome to have a discussion with us. |
B.You have got an idea, so your answers are welcome. |
C.Your answers are always right. |
D.You can give us all the right answers. |
. Which is the best title of this passage?
A.Only parents can decide. | B.Parents and children. |
C.A strange question. | D.Teenagers need friends. |
阅读下面短文,把A—D 四个句子填入文中空缺处,使短文内容完整、正确,然后完成第75小题。 ( 每小题2 分, 共10分 )
At school many things happen to us. We may feel excited when we have success in a school play. _____71_____ We want to keep the memory for the rest of our lives.
How to keep the memory? Our English teacher, Miss Wang, has taught us a good way of remembering things. It is to make our own yearbook. What is a yearbook? _____72_______ It’s usually made at the end of the year.
Last December, we began to make our yearbook. ______73______Then some students interviewed them, some wrote down their stories, others took photos of them. ____74______ Finally, our teacher helped us to put the things together. We had our first yearbook.
All of us put a lot of love into making the yearbook. It is so wonderful that not only the students but also our parents and teachers will remember the special time for ever.
A. A yearbook is a kind of book which is used to keep the memory of exciting moments. B. Everyone in our class had something to do to make the yearbook. C. We may feel sorry if we lose an important game. D. First, we chose the persons who had done something special. |
Which of the following is the best title for this passage?
A.Making a yearbook can keep the memory. |
B.We can learning English from our teacher. |
C.Our parents and teachers will remember the special time for ever |
D.Many things happen to the students at school. |
We use the Internet for many things: business, shopping, writing letters, talking to people, finding information and so on. In recent years a new kind of English has grown on the Internet. There’s no real word for it yet, so we’ll call it e-talk. People don’t like typing too much. To save time, they turn phrases into a few letters called acronyms. Acronyms are often used in chat rooms. Some of them are
BTW (by the way)BRB (be right back)
LOL (laughing out loud) IMO (in my opinion)
People also use many abbreviations(缩写). They are shortened forms of words. Some common abbreviations are:
Info(information) puter (computer)
Pie(picture)sec (second)
We usually don’t see people when we communicate on the Net, so people have new ways to show feelings. Most people use their keywords to draw “feeling”, such as:
:-)(happy) :-p(joking) :-( (sad) :-0 (surprised)
These days, many forums(论坛) have picture feelings. For example,
(sad)(happy)
There are even whole new words, like“newbie’s”(someone who is new on a chat board or forum).
It takes time for people to get used to e-talk. Also, different groups on the Net have their own special ways of communicating. Newbie’s have to ask other people what they mean. As the Internet grows, e-talk will continue to grow and change.What does the underlined word “acronyms” mean?
A.网友 | B.聊天室 | C.首字母缩写词 | D.关键词 |
Why do people type acronyms?
A.To show their feelings. |
B.Because people can type them quickly. |
C.In this way newbie’s won’t understand them. |
D.To make people use Internet |
What does “BTW, my puter is not working well. :- ( ” mean ?
A.The person is angry at somebody. |
B.The person is happy about getting a new computer |
C.The person is sad that his computer is having problems. |
D.The person is joking that his computer is having problems. |
E-talk will probably _______.
A.keep changing |
B.be easy by people on the telephone |
C.be used by people on the telephone |
D.make life easier |
What’s the best title for this passage?
A.E-talk Language | B.Picture Feelings |
C.How to Use Abbreviations | D.use the Internet |
根据短文内容,选择最佳答案。(每小题2分,共20分)
(A)
We all have our own ways of sharing our life experiences with others.
Photographers use cameras, artists use brushes, musicians use songs and writers use stories.
Spencer Johnson’s story Who Moved My Cheese? Shows changes exist in (存在于) our life. Life changes and so we do. We must change ourselves to face the changing environment, or we will fail.
Just look at the cycle (循环) of the seasons. Trees bud (发芽) in spring and in summer their leaves turn green. In autumn, their leaves start to fall onto the ground. When winter arrives, there are no leaves on trees. Next spring the cycle begins again. Since we know there are cycles in nature, we can prepare for them. We know it is colder in winter and hotter in summer, so we can dress properly.
Since we accept the cycles of nature, we should also accept the changes in our life.
We can prepare ourselves for changes by becoming more flexible(灵活的). We can regard the changes in our life as chances. As we keep changing ourselves, we can keep up with the changes in our life.What do writers use to share their life experiences?
A.Stories | B.Newspapers | C.Basketballs | D.Pianos |
Who Moved My Cheese? Tells us that _________________.
A.changes exist in our life |
B.we should move other’s things |
C.we should use books to share our life experiences |
D.there are difficulties in our life |
The cycle of the seasons means______________.
A.we should wear warm clothes in winter |
B.we should accept the changes in our life |
C.we should prepare for the weather |
D.leaves turn yellow in autumn |
f you fail a test, what should you think according to the passage?
A.I have no chance to pass the test. |
B.Exams are hard for me. |
C.I have bad luck. |
D.It’s good for me because I know there are more to learn. |
What’s the main idea of this passage?
A.Weather changes in different seasons. |
B.Who Moved My Cheese? is a good book. |
C.We should change ourselves when life changes. |
D.We should not lose heart when meet with difficulties. |
根据短文内容,判断下列句子的正误,正确的用“T”,错误的用“F”。(每小题1分,共5分)
Today more and more people are using refrigerators. Some are big, others are small. Big ones have two or three doors. Such refrigerators can not only keep the food cold and fresh, but also make ice and freeze the food. However, small ones usually have one door and can only keep things cold and fresh.
There are also refrigerators that are friendly to the environment. In the 1970s, the world was in energy crisis(危机). Refrigerators use too much energy. So people began to think of ways to improve it . At last a kind of new refrigerator was made. They use very little energy, but they’re too expensive. They cost twice or three times more than the ones that we use at home. However, people believe they will be cheaper and cheaper. As a result, they will be more and more popular.
In the future, there will be refrigerators that can do more than we can imagine. They are called smart refrigerators(智能冰箱) . They have tiny computers inside, with their screens on the door. They can show us what food is inside. They can also tell us what food to buy.They can even let us know what food to eat when we input the necessary health information. The more surprising thing is that they can do shopping for us when they are connected(连接) to the supermarket.Small refrigerators can not only keep the food cold but also freeze the food.
Refrigerators that use very little energy are more expensive.
Friendly refrigerators will be popular some day.
Refrigerators that keep the food fresh are smart refrigerators.
We can have a “talk ” with smart refrigerators.