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题型:阅读选择 题类:常考题 难易度:普通

江苏省镇江市2019-2020学年八年级下学期英语3月线上测试B卷

阅读理解


    It may seem easy to say that plants and animals are different. Any child can tell the difference between a tree and a dog. But those differences are far deeper than just what they look like. The cells (细胞) that plants are made up of are different. In other words, the cell wall of plants has something special.

    First of all, it's important to find that not all plant cells have a cell wall. Besides, there are many differences of a cell wall based on the kinds of plant. The following is meant to be what a plant cell wall is like.

    The cell wall of a plant is usually hard and cannot be bent easily, but the degree of flexibility (韧性) of the cell wall is different. It is based on the special use that the cell has in keeping the plant alive. Cells that make up the trunk of a tree are clearly less flexible than cells on a leaf.

    Cell walls act in many ways. They serve to protect the plant. They provide support, as well as help in the movement of chemicals and wastes into and out of the cell. More importantly, they control the water that goes in and out. Plants must have good water controlling systems (系统), allowing them to keep water during dry seasons, and get rid of unnecessary water. Plants can't walk around to find water, so being able to control water is very important.

    So there you have it — what a plant cell wall is. Of course, there are many other things that are not talked about here. Knowing more about plant cell walls needs further study and research.

(1)、From the first two paragraphs we can find that        .
A、all plants have a cell wall B、plant cells and animal cells are the same C、different kinds of plant have different cell walls D、there are no differences between the cells of a tree and a dog
(2)、The underlined word "bent" in the passage is the closest in meaning to        .
A、changed B、kept C、burnt D、broken
(3)、Cells in the trunk of a tree are        those on a leaf.
A、as flexible as B、not so flexible as C、more important than D、less important than
(4)、What is the most important use of a plant cell wall?
A、To protect the plant. B、To provide support. C、To move chemicals and wastes. D、To control the water.
举一反三
 阅读理解

①Plants are more than just pretty to look at. They give us fruits, vegetables and food we eat. Some plants even provide materials for medicine or building things. But do you know that plants can do something even more amazing? They can make our homes, schools and workplaces much healthier. We spend a large part of our day indoors. Unluckily, the air inside buildings can often be full of a chemicals (化学物质) from many things around us. This poor air quality (质量) can make us feel sick, cause eye problems, and even make it hard for us to breathe (呼吸). When the air inside buildings gets really bad, people even call them "sick buildings".

②The good news is that plants are like nature's super heroes. They have a magic power fighting against bad air. Plants breathe in carbon dioxide (CO2) and breathe out oxygen (O2) which we humans need to live. They can also add moisture (水分) to the air if it's too dry, making it more comfortable for us to breathe.

③  ▲  Scientists have discovered that plants have the ability to take in harmful chemicals, making the air around us safer to breathe. They set up a completely closed building called "bio-home" for experiments. Before they added plants, the air inside was full of chemicals and people found it hard to breathe. Then scientists added different kinds of plants in it. After a while, they used a special machine to test the air quality. The air got much cleaner and it became easier to breathe. People could go inside without feeling unwell. Scientists found out the building wasn't a "sick building" any more.

④So you see, plants are incredible! They are not only beautiful to look at, but they also provide us with food, help create materials and play an important role in our health. They make our indoor environments cleaner and healthier, making us feel better. Next time you see a plant, remember all the amazing things it can do for us!

 回答问题 请阅读下面短文,根据所提供的信息,回答5个问题。要求所写答案语法正确、语义完整切题,并将答案写在答题卡对应题目的答题位置上。

Mobile phones are becoming more and more popular not only with adults but also with students.However,they have also become a problem for middle schools in the last few years.Some children get mobile phones as Christmas or birthday gifts,and more of them ask their parents to buy for them.

Many students like mobile phones because they are so useful and enable them to do a lot of things.Some parents feel it convenient because they can get in touch with(联系)their children.Some teachers think using mobile phones is a distraction (分心的事) to students during school hours and that mobile phones also give them much trouble in their classrooms.Sometimes students send phone messages to cheat(作弊) during exams.A new study says that some teenagers even hurt their fingers because of the over﹣use of mobile phones.They keep using mobile phones for more than ten hours a day.

Many teachers suggest that students should not have phones at school,but if there is a good reason they can leave their phones at the school office.Many people think they understand why parents want their children to have mobile phones,but they agree that schools should let students know when they can use them.In school,they shouldn't be allowed to take their phones to the classrooms.Besides,strict rules about using phones at school should be made.

请阅读下面全文, 并从方框里的六个句子中选择五个还原到原文中, 使原文的意思完整、连贯。

A. Prepare a list.

B. Explain every point.

C. The following tips can be helpful.

D. Rewriting makes our writing better,

E. It is not easy to become a better writer.

F. Good word choices are necessary for good writing.

Tips for Writing Better Articles

Many of us don't spend a lot of time improving our writing skills. This can be a problem when we hand in our articles. Good writing skills will help us improve our grades and benefit us later in life. {#blank#}1{#/blank#}

Make good word choices.

When we' re not sure which word is the right one for a sentence, look it up in a dictionary. Many of us choose words in a hurry and don't take the time to decide if they' re proper. {#blank#}2{#/blank#}

Check facts.

If we want people to believe what we write, we must make sure our facts are true. We should use dependable facts.

Rewrite.

A common problem is that we don't like to rewrite. In fact, rewriting is the best way to find out and correct some mistakes, like grammar and spelling mistakes.{#blank#}3{#/blank#} though it takes more time and more work.

Read aloud.

Sometimes it's easier to find problems with spelling, word usage, and grammar when we read aloud. Reading al oud helps us not only find out our problems but also develop our writing.

{#blank#}4{#/blank#}

Preparing a list is necessary for writing a good article. Such a list includes: Is there a proper title? Have we explained every point? Are all the parts of the article included? This can help us to make sure that we have covered everything.

{#blank#}5{#/blank#} But with a few simple steps, we can improve our writing skills and learn how to write better articles.

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