【即时训练】
根据汉语意思选用already和yet来完成句子。 ——你已经完成你的家庭作业了吗？ ——是的。我已经完成了。
—Have you finished your homework __yet__？ —Yes.I've __already__ finished it. 2．discover v. 发现；找到(教材P18) 【辨析】discover, invent与create
(1)discover指“发现”某种本来存在, 而以前未被发现的事物或不为人所知的东西。如：
I discovered (that) she was a good cook.我发现她很会烧菜。 (2)invent 表示“发明”, 即原来没有而后来发明创造的东西。如：
Edison didn't discover electricity, but invented the light bulb.爱迪生没有发现电, 但是发明了灯泡。
(3)create表示“创造”, 指经过努力使事物从无到有。如：
They created one new record after another.他们创造了一个又一个的新纪录。 【即时训练】
根据汉语意思完成句子。
全世界的科学家都在努力寻找治疗艾滋病的方法。
Scientists around the world are working hard __to__discover__ a cure for AIDS. 3．ill adj. 不健康的；有病的(教材P26) 【辨析】ill与sick
ill 和sick都有“生病的；有病的”之意, 但用法并不完全相同。 (1)ill 表示“生病的；有病的”这一意思时, 一般用作表语, 不能作定语；而sick 既可以作表语又可以作定语, “病人”可以说a sick man 或the sick, 但不能说an ill man 或the ill。如：
She is ill/sick in bed.她卧病在床。 (2)sick 有“恶心的；厌倦的”之意。ill 作定语修饰名词时是“坏的；邪恶的”之意。如：
The smell makes me sick.这气味使我感到恶心。 He is an ill man.他是一个邪恶的人。 【即时训练】
用ill或sick填空。
(1)She is looking after her __sick____father. (2)Jack____is__ill/sick__ in bed.
4．Have you heard the latest news? 你听说过这个最新消息吗？(教材P18) 【点拨】这是个现在完成时态的句子。现在完成时态的基本结构为： 肯定句：主语＋助动词have/has＋过去分词＋其他。
否定句：主语＋助动词have/has＋not＋过去分词＋其他。 肯定回答：Yes, 主语＋have/has.
否定回答：No, 主语＋haven't/hasn't.(有时也可用“No, not yet./No, never./No, not even once.”等。)
【即时训练】
用所给词的适当形式填空。
—Mum, may I go out and play basketball?
—__Have__ you____finished__(finish) your homework yet?
5．That's why it's on the news.这就是它(宇宙飞船)上新闻的原因。(教材P18) 【点拨】That's why…意为“这就是……的原因”, why引导表语从句, 对主语进行解释说明, 使主语的内容具体化。从句要用陈述语序。表语从句还可由what, where, who, how等词引导。如：
That's why I'm angry.那就是我生气的原因。
That's where Lu Xun used to live.这就是鲁迅曾经住过的地方。 【即时训练】
根据汉语意思完成句子。 那就是他上学迟到的原因。
__That's__why__he__was__late__for__school.__________________________________________________________________________
6．Scientists think that there has been life on the earth for hundreds of millions of years.科学家们认为数亿年以前地球上已有生命存在了。(教材P20)
【点拨】there have/has been表示“曾经有；已经有……”, 是there be的完成时形式。如：
There have been great changes in such kind of PDAs(掌上电脑) in the last years.近几年里, 这种类型的掌上电脑已经发生了巨大的变化。
【即时训练】
根据汉语意思完成句子。
他们认为在很多年以前, 地球上已经有这种生物了。
They think that __there__has__been__ such a creature on the earth since many years ago.
,当堂练习检测
Ⅰ.根据句意及汉语提示写出正确的单词或短语。
1．I have wanted to be an __astronaut__(宇航员)． 2．__Perhaps__(也许)it will snow tomorrow. 3．The __earth__(地球) goes around the sun.
4．Are you a __member__(成员) of the chess club? 5．The scientists have __discovered__(发现) many other galaxies in the universe. 6．You should take an __active__(积极的) part in the task.
7．Looking through newspapers is his __daily__(每日的) activity. 8．The old man is in poor __condition__(身体状况)．
9．My mother is __ill__(生病的), I have to look after her at home. 10．He didn't go to school because he____caught__a__cold__(感冒)． Ⅱ.用方框中所给单词或词语的适当形式填空。每词仅用一次。
go, sleep, have, possible, health
1．The noise made sleep __impossible__． 2．I __had____a stomachache yesterday.
3．I am so __sleepy__ that I can't listen to the teacher. 4．I'm worried about my mother's __health__．
5．Li Mei __has__gone__ to the library.She will be back in a few minutes. Ⅲ.根据短文内容和所给中文提示, 在空白处写出单词的正确形式。每空限填一词。 Mothers always tell their children what they should eat.
When Jim was a child, his mother often told him, “Be 1.__careful__(小心的) not to eat too much sugar, or your teeth will 2.__ache__(痛)．”Besides, his mother always
asks him to wash hands before meals to prevent 3.__illness__(疾病)．
Mary's mother always took care of Mary well.For example, Mary had a cold and 4.__coughed__(咳嗽) day and night.Her mother took her 5.__temperature__(温度) first and checked if she had a 6.__fever__(发烧)．Then she would send her to a 7.__hospital__(医院) if necessary.
Michael is a picky(挑剔的) boy.He likes meat very much.But he 8.__hardly__(几乎不) eats vegetables.That makes his mother very 9.__worried__(着急的)．One day, his mother came up with an idea.She cooked some meat balls with vegetables in it.Michael liked them very much and ate them up.Then he was surprised to find vegetables were 10.__delicious__(美味的)．
第15课时 八年级下册Modules 3—4
Ⅰ.完形填空
That was__1__special day for Jack.It was 12 o'clock at night.He __2__finished his work.He walked __3__ back home in the street.The street was quiet.He looked east.About halfway(在半途)up the sky he __4__ the planet Mars.It looked like a red star.It had the brightest __5__ in the sky.
Have you ever seen Mars? Have you __6__ it? Do you know __7__ there is life on Mars? Now let me tell you something about Mars.I am sure you will be __8__ in it.
Mars is the fourth from the sun and the seventh __9__ in the solar system.The __10__ gets the name probably(大概) because it has the red colour.Of all the planets in the solar system, Mars is the most __11__ the Earth, and the easiest one to travel to.
On April 7, 2001, America sent Mars Odyssey __12__ Mars.The journey took Mars Odyssey __13__months.On October 24, 2001, it landed on Mars.Recently scientists have __14__ there maybe liquid(液体的) water on Mars.Water is very important because where there is water on Earth, there is life.Look forward __15__ life on Mars some day!
( A )1.A.a B．an C．the D．/
( A )2.A.just B．yet C．even D．never
( B )3.A.lonely B．alone C．quick D．along ( B )4.A.see B．saw C．will see D．seeing ( C )5.A.star B．air C．light D．sun ( C )6.A.hear about B．hear from C．heard about D．heard from ( A )7.A.if B．when C．where D．why
( B )8.A.interest B．interested C．interesting D．interests ( D )9.A.large B．larger C．bigger D．largest
( A )10.A.planet B．plant
C．star D．satellite ( C )11.A.look B．with C．like D．looks like
( A )12.A.to B．at C．for D．on ( C )13.A.much B．few C．several D．a lot
( A )14.A.discovered B．find C．worked D．find out
( C )15.A.to discover B．finds C．to discovering D．to find Ⅱ.阅读理解
What should we do if one of our classmates suddenly falls ill or gets hurt? Here are some steps you should follow.But always remember to look for medical care after first aid(急救) if the wound is serious.
Broken bones(骨头)：Take away clothing from the wound.Use an ice pack.Don't move the hurt body part while waiting for the doctor to arrive.
Animal bites(咬伤)：Wash the bite area with soap and water.Pack the wound with a clean cloth if it is bleeding.If the bleeding has stopped, cover the area with a bandage and take the person to the hospital.Make sure you remember what kind of animal it is, so the doctor can find the right way to treat him or her at once.
Fainting(昏厥)：Have him or her lie with feet lifted a little.Don't move the body if you think there might be wounds from the fall.Make sure he or she can breathe and let in fresh air.Clean the person's face with a cool cloth.
Nosebleeds：Have the person sit up with his or her head tilted(倾斜) forward a little.Do not have the person tilt his or her head back because this may cause heavy breathing or coughing.Pinch(捏) the lower part of the nose for at least 10 minutes.
( B )16.What should we do first when an animal bite happens? A．Put an ice pack on the wound.
B．Wash the bite area with soap and water.
C．Try to stop the bleeding with a clean cloth. D．Take the hurt person to the hospital.
( C )17.When dealing with the problems of ________, we shouldn't move the hurt. A．broken bones and animal bites B．animal bites and nosebleeds C．broken bones and fainting D．fainting and nosebleeds
( D )18.Which of the following is not right when a boy's nose bleeds? A．Let his head not tilt back.
B．Let his head tilt forward a little. C．Let him sit up.
D．Pinch his nose for less than 10 minutes.
( B )19.Which part of a magazine may the passage come from? A．Lifestyle. B．Health.
新外研版中考英语总复习教材知识梳理(八下至九下)汇总所有重要知识点)
