【題目】There are two ways to look at this question --- 【1】 relating to eggs in general or to the chicken egg specifically. Either way, the answer is the same: the egg came before the chicken. 【2】 the case of eggs in general, animals such as dinosaurs were laying eggs long before the modern chicken came into existence, 【3】 (mean) that in this sense, the egg predated (早于) the chicken by thousands of years. As for the chicken egg specifically , according to NPR’s Robert Krulwich, the modern chicken 【4】 (hatch 孵化) from an egg, meaning the egg came first.
The key to understanding the answer, and indeed the question itself, is to understand what the question is getting at. The dilemma is to understand 【5】 a chicken-like bird transformed into 【6】 is known as a modern chicken after being hatched or whether two chicken-like birds 【7】 (lay) and fertilized an egg that then hatched a fully formed chicken. In this case, the latter option is the most realistic, therefore answering the question of which came first. 【8】 (essential), a bird that was similar to a hen and another bird that is similar to 【9】 rooster combined their genetic material, leading to a gene mutation (突變) that resulted in the chicken that is 【10】 (good) known and loved today.
【答案】
【1】either
【2】In
【3】meaning
【4】was hatched
【5】whether / if
【6】what
【7】laid
【8】essentially
【9】a
【10】well
【解析】本文討論的是千古之謎——先有雞還是先有蛋的問題。
【1】固定搭配:either---or---,要么---,要么---,此處填either。
【2】固定詞組:in the case of至于,在---的情況下,答案為In。注意大寫開頭。
【3】句意:像恐龍這樣的動(dòng)物在現(xiàn)代雞出現(xiàn)之前就已經(jīng)開始下蛋了,也就是說,在這個(gè)意義上,雞蛋比雞早了幾千年。此處是現(xiàn)在分詞做自然的結(jié)果狀語,答案為meaning。
【4】句意:現(xiàn)代雞是由一個(gè)雞蛋孵化出來的,這意味著先有蛋。此處chicken和hatch之間是被動(dòng)關(guān)系,這里指過去發(fā)生的事情,所以句子用一般過去時(shí)態(tài)的被動(dòng)語態(tài),答案為was hatched。
【5】句意:現(xiàn)在的困境是要弄清楚一只雞樣的鳥是否在孵出后變成了所謂的現(xiàn)代雞,或者是兩只像雞一樣的鳥產(chǎn)下并受精了一只蛋,然后孵出了一只完全成形的雞。根據(jù)后面的or whether可知,understand后面是whether / if引導(dǎo)的賓語從句。
【6】句意:現(xiàn)在的困境是要弄清楚一只雞樣的鳥是否在孵出后變成了所謂的現(xiàn)代雞,或者是兩只像雞一樣的鳥產(chǎn)下并受精了一只蛋,然后孵出了一只完全成形的雞。介詞into后面是一個(gè)賓語從句,從句沒有引導(dǎo)詞和主語,故答案為what。
【7】句意:現(xiàn)在的困境是要弄清楚一只雞樣的鳥是否在孵出后變成了所謂的現(xiàn)代雞,或者是兩只像雞一樣的鳥產(chǎn)下并受精了一只蛋,然后孵出了一只完全成形的雞。lay and fertilized之間是并列關(guān)系,所以用一般過去時(shí)態(tài),答案為laid。
【8】副詞修飾整個(gè)句子,用副詞,故答案為essentially。
【9】句意:一種類似于母雞的鳥和另一種類似于公雞的鳥結(jié)合了它們的遺傳物質(zhì),導(dǎo)致了一種基因突變,導(dǎo)致了今天人們所熟知和喜愛的雞。根據(jù)前面的a bird,所以與之相匹配的是不定冠詞+名詞,答案為a。
【10】句意:一種類似于母雞的鳥和另一種類似于公雞的鳥結(jié)合了它們的遺傳物質(zhì),導(dǎo)致了一種基因突變,導(dǎo)致了今天人們所熟知和喜愛的雞。well-known著名的;眾所周知的,是固定短語。
年級(jí) | 高中課程 | 年級(jí) | 初中課程 |
高一 | 高一免費(fèi)課程推薦! | 初一 | 初一免費(fèi)課程推薦! |
高二 | 高二免費(fèi)課程推薦! | 初二 | 初二免費(fèi)課程推薦! |
高三 | 高三免費(fèi)課程推薦! | 初三 | 初三免費(fèi)課程推薦! |
科目:高中英語 來源: 題型:
【題目】(2015·上海)Directions: After reading the passages below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form. of the given word; for the other blanks, use one word that best fits each blank.
Gift from a stranger
My local supermarket is always busy. The first parking space I found was convenient, but I'd noticed a woman in a blue car circling for a while. I was in a good mood, I let her have it. On the edge of the car park I backed into the next available spot—it was a tight fit.
Pretty soon I'd made my way through the supermarket and was back in the fresh air. Feeling good, I (empty) my purse change into the hands of a homeless man and helped a struggling woman reverse park(倒車).
Just as I approached my car, 1 saw the woman I'd let have my car space earlier. She was giving me odd look—half puzzled, half intent (熱切的). I smiled and wished her a pleasant day. As I squeezed back into my car, I spotted the same lady (look) in at me. "Hello," she said, hesitantly. "This sound crazy but I was on my way to drop some of my mother's things off at the charity bins.” You are just so much her.” You helped those people, I noticed, and you seemed so happy.” She looked at me meaningfully and passed a box in through the window. “I think she would like you to have it.” (shock), I took it from her automatically. She smiled and walked away.
After a pause, I opened the box. Inside was a beautiful gold necklace with a large grey pearl. It was (nice) gift I'd ever received, and it was from a complete stranger. The necklace was around my neck, a warm reminder of human kindness.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】完形填空。
Dad had a green comb. He bought it when he married Mum. Every night, he would hand me his 1 and say, “Good girl, help Daddy clean it, OK?”
I was 2 to do it. At age five, this dull task brought me such3. I would excitedly turn the tap 4 and brush the comb carefully. Satisfied that I'd done a good job, I would happily return the comb to Dad. He would 5 affectionately at me and place the comb on his wallet.
Two years later, Dad started his own 6, which wasn't doing so well. That was when things started to 7. Dad didn't come home as early and as much as he used to. Mum and I became 8with him for placing our family in trouble. With 9 , an uncomfortable silence grew between us.
After my graduation, Dad’s business was getting back on track. On my 28th birthday, Dad came home 10. As usually I helped him carry his bags into his study. When I turned to leave, he said ,“Hey, would you help me11 my comb?” I looked at him a while, then12the comb and headed to the sink.
It hit me then: why, as a child, 13 Dad clean his comb was such a pleasure. That routine(習(xí)慣) meant Dad was home early to 14 the evening with Mum and me. It 15 a happy and loving family.
I passed the clean comb back to Dad. He smiled at me and 16placed his comb on his wallet. But this time , I noticed something 17. Dad had aged. He had wrinkles next to his eyes when he smiled, 18 his smile was still as 19 as before, the smile of a father who just wanted a good 20 for his family.
(1)A.bag B.wallet C.comb D.brush
(2)A.annoyed B.relieved C.ashamed D.pleased
(3)A.joy B.sadness C.courage D.pain
(4)A.out B.over C.in D.on
(5)A.stare B.smile C.shout D.laugh
(6)A.family B.business C.task D.journey
(7)A.progress B.change C.improve D.form
(8)A.satisfied B.delighted C.mad D.strict
(9)A.time B.patience C.speed D.ease
(10)A.occasionally B.early C.frequently D.rarely
(11)A.sharply B.repair C.clean D.keep
(12)A.dropped B.took C.handed D.threw
(13)A.watching B.letting C.helping D.hearing
(14)A.find B.lose C.waste D.spend
(15)A.affected B.broke C.meant D.supported
(16)A.firmly B.hurriedly C.casually D.carefully
(17)A.different B.exciting C.interesting D.urgent
(18)A.for B.or C.so D.yet
(19)A.convincing B.heartwarming C.cautious D.innocent
(20)A.origin B.life C.reputation D.education
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】假定英語課上老師要求同桌之間交換修改作文,請(qǐng)你修改你同桌寫的以下作文。文中共有10處語言錯(cuò)誤,每句中最多有兩處。每處錯(cuò)誤僅涉及一個(gè)單詞的增加、刪除或修改。
增加:在缺詞處加一個(gè)漏字符號(hào)(∧),并在其下面寫出該加的詞。
刪除:把多余的詞用斜線(﹨)劃掉。
修改:在錯(cuò)的詞下劃一橫線(__),并在該詞下面寫出修改后的詞。
注意:1. 每處錯(cuò)誤及其修改均僅限一詞;
2. 只允許修改10處,多者(從第11處起)不計(jì)分。
My friend Kevin had started waking up early and decided that he was going to do it completely natural so he quit drinking coffee. This is similar to everyone who never works out and then decide he is going to run a marathon the next day.
It didn’t work out for Kevin. He was miserable after a couple of day and decided to give up woke up early and went back to drinking coffee.
Personally, I had to drink a ton of coffee when I first started waking up early. I’ve been able to cut them back dramatically but it’s what I needed readjust my internal clock early on. Nowadays I really don’t need any caffeine (I usually just drink a cup of green tea in the morning) but I want to share a reality of what I have experienced.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】Up to 90% of school leavers in major Asian cities are suffering from myopia — short-sightedness, a study suggests. Researchers say the “extraordinary rise” in the problem is being caused by students working very hard in school and missing out on outdoor light.
Eye experts say that you are short-sighted if your vision is blurred(模糊的) beyond 2m. It is often caused by an elongation (拉伸) of the eyeball that happens when people are young. According to the research, the problem is being caused by a combination of factors — a commitment to education and lack of outdoor light.
Professor Morgan who led this study argues that many children in South East Asia spend long hours studying at school and doing their homework. This in itself puts pressure on the eyes, but exposure to between two and three hours of daylight helps maintain healthy eyes.
Cultural factors also seem to play a part. Across many parts of South East Asian children often have a lunchtime nap. According to Professor Morgan they are missing out on natural light to prevent short-sightedness.
A big concern is the numbers of the students suffering from “high” myopia. One in five of these students could experience severe visual impairment(障礙) and even blindness. These people are at considerable risk-sometimes people are not told about it and are just given more powerful glasses-they need to be warned about the risk and given some self-testing measures so they can get to an ophthalmologist and get some help.
For decades, researchers believed there was a strong genetic component to the condition. But this study strongly suggests an alternative view. “Any type of simple genetic explanation just doesn’t fit with that speed of change; gene pools just don’t change in two generations. Whether it’s a purely environmental effect or an environmental effect playing a sensitive genome, it really doesn't matter, the thing that’s changed is not the gene pool—it's the environment.”
【1】As is mentioned above, which factor mainly results in students' myopia in South East Asia?
A. Lack of research into the problem. B. Genetic faults of the people.
C. Elongation of the eyeball. D. The shortage of outdoor light.
【2】Which of the following statements do you think Professor Morgan agrees with?
A. A lunchtime nap is helpful in reducing myopia.
B. Glasses keep myopia from getting even worse.
C. It's necessary to treat myopia with an operation.
D. It's of vital importance to reduce educational pressure.
【3】What's the main idea of the last paragraph?
A. Short-sightedness has nothing to do with changes in gene pools.
B. Gene remains the main cause of the long-standing problem.
C. An environmental effect playing a sensitive genome counts.
D. The environment is to blame for the extraordinary rise in myopia.
【4】What's the best way to take care of your eyes according to the passage?
A. Look at the sun from time to time. B. Do eyes exercise regularly.
C. Spend more time in the open air. D. Equip the classroom with better lights.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】聽下面一段較長(zhǎng)對(duì)話,回答以下小題。
【1】What was the woman doing in the beginning?
A. Reading an article. B. Watching TV. C. Listening to music.
【2】Why was the young man in the story homeless?
A. He had lost his job. B. Everything he owned was stolen.
C. His family didn't want him to come back.
【3】Where did the young man meet the group of people?
A. At a bus station. B. In the homeless shelter. C. In a park.
【4】What did the group do for the young man?
A. They gave him a job. B. They bought him a plane ticket.
C. They bought him some nice clothes.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】
【1】給他們一些如何讓他們的網(wǎng)站更好的建議。
Give them some advice about ______________________.
【2】麥克有這么多事情要做,他根本沒時(shí)間來喝杯咖啡放松一下自己。
Mike has so much work to do ______________________.
【3】這箱子太重搬不起來。
This box is ______________________.
【4】跑步就像游泳一樣是有益的運(yùn)動(dòng)。
Running is ______________________ swimming.
【5】主席建議雙方應(yīng)該第二天再次見面。
The chairman suggested that the two sides ______________________.
【6】他看起來更像一個(gè)職員而不是經(jīng)理。
He looks ______________________.
【7】使用者要遵照說明很重要。
It is important ______________________.
【8】隔壁住著一位叫David的老人。
In the next house ______________________.
【9】只有你意識(shí)到英語的重要性時(shí),你才能學(xué)好英語。
It was ______________________ that you could learn English well.
【10】在去超市的路上,她的包被偷走了。
On the way to the supermarket, she ______________________.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】Binge-watching can be described as the act of watching many videos, TV shows, ect., in a very short period of time.【1】 However, recent research into this phenomenon (現(xiàn)象) has shown that it has some very bad effects on the human body.
Watching television is a leisure activity, which is usually accompanied by unhealthy snacking.【2】 Some research also suggests that people who binge-watch on a daily basis are doubling their chances of early death.
Apart from this, in extreme cases, people start living in a fantasy (虛幻的) world longer than they do in their real lives.【3】 Worse still, new studies have shown that people who watch more than three TV shows at a time are more likely to suffer from loneliness and depression.
【4】 Well, the most common signs of addiction (上癮) to TV arc sleep loss, weight gain, and keeping a large part of your daily conversations limited to your favorite shows.
Thus, it’s best to stop binge-watching, and only allow yourself to watch TV just for less than three hours a day. However, if you must binge-watch, remember to lake regular breaks after a period of time, and more importantly, never watch more than one show at the same time.【5】 In addition, taking part in human interaction (互動(dòng)) regularly is one of the best ways to keep your binging in the safe zone. But keep your conversations away from the TV show!
A. This will finally result in the loss of self-respect.
B. Make sure to avoid watching those negative TV programs.
C. Anyway, binge-watching is bad if it turns into an addiction.
D. Nowadays, binge-watching has become increasingly popular.
E. Then, how does one know whether they’re binge-watching fans or not?
F. Balancing (平衡) watching TV with a good amount of physical exercise is most important.
G. So binge-watching for a long time can increase the risk of health problems like heart disease, etc.
查看答案和解析>>
科目:高中英語 來源: 題型:
【題目】語法填空
Have you ever thought about the best meal you have ever eaten? For many people, it isn't just about the quality of the food; it's also about great memories of a particular vacation or the person it was shared . We asked 100 famous chefs from around the world their best meals were, and we got some (interest) answers.
As the researchers expected, 30% of the chefs(survey) said that their best meal as a kid was still what they liked the most as an adult. 20% (consider) a meal in a fancy restaurant as the best one in their lives, and another 10% said that a meal while on vacation with their wifehusband was the best of all time. 15% said that a simple meal that they often cooked at home ranked (high) than any other meal, and the same number said that their best dish was something they make where they work. (surprising), 10% of these chefs said that their favorite meal of their entire lives was at a fast food restaurant! These best (cook) in the world would pick McDonald's or KFC if they had the choice of what (eat).
查看答案和解析>>
百度致信 - 練習(xí)冊(cè)列表 - 試題列表
湖北省互聯(lián)網(wǎng)違法和不良信息舉報(bào)平臺(tái) | 網(wǎng)上有害信息舉報(bào)專區(qū) | 電信詐騙舉報(bào)專區(qū) | 涉歷史虛無主義有害信息舉報(bào)專區(qū) | 涉企侵權(quán)舉報(bào)專區(qū)
違法和不良信息舉報(bào)電話:027-86699610 舉報(bào)郵箱:58377363@163.com