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题型:阅读选择 题类:常考题 难易度:普通

牛津版(深圳•广州)2019-2020学年初中英语七年级上册 Unit 8 Collecting things 第4课时 Listening & Speaking

阅读短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。

    The best time to collect green leaves is early in summer but not so early. The months of June and July provide the best leaf samples (样本) but you can find great leaf samples throughout the summer. To make a full colour collection, you have to collect leaves in autumn. I have seen many beautiful fall colour collections.

    When you select leaves for your collections, try to select leaves of about the same size and shape on the tree. Make sure you should collect the complete leaves.

    Remember, simple leaves have only one blade (叶片) or leaflet. Compound leaves have several or many leaflets. You must know these two kinds of leaves. Good leaf collections contain the entire leaf. That is a small part of the twig (嫩枝) with a lateral or terminal bud (芽).

    When you collect leaves in the field, you can place them between the pages of a magazine to protect them. And then, press them as soon as possible before you remove them from this magazine. You should dry the collected leaves carefully before placing them in a leaf press. Finally, place them in a leaf press. You should write down each leaf's name and these names should follow the leaves until the exhibition comes.

(1)、Which months are the best time to collect green leaves?
A、February and March. B、April and May. C、June and July. D、August and September.
(2)、We can collect these leaves but NOT ________.
A、the leaves of the same size B、the complete leaves C、the leaves of the same shape D、the leaves with some holes
(3)、What does the underlined word "Compound" mean in Chinese?
A、复合的 B、复杂的 C、多样的 D、重复的
(4)、Put the steps we make a leaf sample into the right order.

a. Dry the collected leaves carefully before placing them in a leaf press.

b. Place the leaves between the pages of a magazine.

c. Press-the leaves as soon as possible.

d. Remove the leaves from the magazine.

e. Place them in a leaf press.

f. Write down each leaf's name.

A、a b c d e f B、b e d a e f C、b d a e c f D、a b d c e f
举一反三
阅读理解

C

    Bigger isn't always better. Many scientists will agree. This year the Nobel Prize gave the biggest prizes to findings on the smallest things. Self-eating cells

    This year's winner of the Nobel Prize in Medicine is from Japan. According to his research, cells (细胞) sometimes "eat" themselves to keep healthy. In other words, cells can break down old ones and use the useful parts to make new cells, or to fight off viruses (病毒). This new finding could help scientists fight many diseases.

Small machines

    Three scientists from France, the United Kingdom and the Netherlands (荷兰) won the Nobel Prize in Chemistry for their work on small machines. How small? Well, they are a thousand times thinner than a strand (缕) of hair. We can't see them with only our eyes! This technology will open a whole new world for us. For example, we could make very small robots in the future. A doctor could put them into our body. Like policemen, the robots look for the ill parts in our body, and send the medicine right there.

Super-state

As teachers said in your physics class, most things in the world are in three states: solids (固体), liquids (液体) and gases . But at very low or high temperatures, things can turn into a strange state. For example, break down things to their smallest pieces and we get "atoms" (原子). Like Lego building blocks, atoms usually add up to become a 3-D thing, like a box. But atoms in the strange state don't. They stay together and become a flat thing, like a piece of paper.

    This is a new finding of three British-born scientists. And they won the Nobel Prize in Physics this year. They hope to use things in this strange state to make new materials.

About the Prize

    The Nobel Prize was started by Swedish inventor, Alfred Nobel in 1895. It gives prizes to great science research and the people behind it. Every year in October, the Royal Swedish Academy of Sciences decides who wins. It includes six prizes: chemistry, physics, physiology (生理学) or medicine, peace, literature (文学) and economic. This year each winner gets a medal and prize money of more than 6 million yuan.

根据短文内容,选择最佳选项。

根据短文理解,选择正确答案。

    Every minute,someone is setting up an Internet company somewhere, in the world. Each one is searching for the one great idea that could make his web company click in a big way.And they are trying all kinds of tricks to attract people towards their websites.While some websites offer sounds,cartoons and amazing photos on screen to make their sites almost a movie-like experience for the viewers,others provide free downloads and competitions.

    A company in California,US,has decided to offer online smells to people who visit its website.

    That is,if a pizza image comes on screen,your nose will catch the smell of bread and cheese!All you need to do is to connect a device(设备)called “iSmell” with your computer.This smart little device contains(包含)some chemicals that can create different kinds of smells.

    The company has invented software that changes the chemical composition(成分)of different smells into digital signals(数字信号).An onscreen image,which is programmed with the proper digital signal,will start the“ iSmell" device.The device will use the software to change' the digital signal again and let go of the correct smell.This device reads the digital smell code(代码)from the website and creates the proper smell from its store of chemicals.This smell is then made to blow softly in the direction of the user with the support of a small fan.

    In order to let go of the correct smell,the company has created a “Scent Registry”,which contains a digital index of thousands of smells.The company plans to allow website developers to integrate(合成)the proper smells in digital code to their games and images.The company is also hoping that Hollywood filmmakers will use the smell technology in their movies.Imagine audiences getting the smell of rocket fuel as a spacecraft takes off on the cinema screen!Of course,filmmakers will have to be careful not to shoot in dirty neighborhoods,which have a lot of rubbish lying around.

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