at the turn of 20th century是20世纪初还是20世纪末?

y the end of the 19th century,shanghai ____a small town on the huangpu river
答案是 had remained 为什么是过去完成式?哪里有过去的过去?
by the end of the 19th century,意思在第19世纪末,这个是表示过去的过去的时间状语,因此需要使用过去完成时态,

advanced in the twentieth century
在20世纪得到发展的另一个（理论）认为,
advance 动词
提出；预付；使……前进；将……提前

note [ nəut ] n.笔记；音符；票据；注解；纸币；便笺；照会；调子
在艺术市场历史上,百年来最长的牛市,随着Damien Hirst的56件作品的销售,以一个戏剧性的‘音符’结束了.
知识在于点滴积累,更在于不懈努力.
——另外,正在冲采纳率,请记得采用,

在英语的表述中,提到已经故去（即死掉了）的人时,通常都是用过去时态的.
如：
Lei Feng was a good solider. 雷锋是个好战士.
Mao Zedong was a great man. 毛泽东是个伟人.

in the past century,在过去的一个世纪里,是一个段时间,一般要用完成时态,而不是一般过去式

1 At the end of
2 by the end of
3 in the end =at last

第一个问题 Henry Ford
第二个问题 in April 1893
第三个问题 five
第四个问题 two dollars and fifty cents
第五个问题 no,Henry Ford founded the Ford Motor Company

θ s发音位置是不同的,可以发的.它们都是摩擦音.
这个你会发吗?
months [mʌnθs]
这个也是一样的.

恩 是从句 定语从句,如果你这个看不明白的话,把that换成which就很清楚了.这句句子写的一点都不好,建议拆成简单句,一般句子不要弄的太长.
如果你和老外对话,用单词都可以,我差不多这么交流的.
第二句从句修饰traditional designs(传统设计）,说是有中世纪的复古风.
第一句从句修饰simple structures(简单的结构）.

eight centuries ago
such assince then

dawn of a new century新世纪的黎明
imagine.our planet floating silently in space.想象一下,我们的地球在宇宙中静静地运行
around it,a white dove flies,forever circling.在它周围,一只白鸽飞翔,永恒地环绕
every one hundred years,the doves wing gently touches the face of the earth.一百年一次,这白鸽的羽翼轻轻地触碰这地球的面颊
the time it would take for the feathered wing to wear this planet down to nothing is eternity.要经过一段漫长的时间,这覆羽的翼会缓缓地将地球消耗,直到一切都归于消亡.
within eternity time passes.永恒不断,时间流逝
within time,there is change.时间流逝,世界改变
soon the wing of the white dove will touch our world again.很快,这白鸽之翼会再次接触我们的世界
the dawn of a new century.新世纪的黎明
time for a new beginning.一个新的开始
now is eternity此刻即是永恒
at the break of dawn of a century新世纪的黎明即将到来
a thousand years of joy and tears一千年的欢笑和泪水
we leave behind我们于后抛弃
.
love is our destiny爱,我们命中注定
celebrate the dawn of a century庆祝即将到来,新世纪的黎明
let voices ring,rejoice and sing让我们高声欢呼,让我们放声欢唱
now is the time就是现在
now is eternity此刻即是永恒
at the break of dawn of a century在这新世纪的黎明即将到来之际
a thousand years of joy and tears抛下一千年的欢笑和泪水
we leave behind我们前进
.
love is our destiny爱,我们命中注定
celebrate the dawn of a century来庆祝吧朋友,迎接新世纪的黎明!
let voices ring,rejoice and sing来高声欢呼,来放声欢唱,
now is the time就是现在
love is eternity爱即是永恒
dawn of a century新世纪的黎明
now is our destiny现在迎接我们的命运
dawn of a century新世纪的黎明
dawn of a century新世纪的黎明!

第一句：21世纪的生活比以前曾经的生活好过多了. 这个句子里面,it是指代life. 比较的内容就是哪个日子“好过”. 第二句：（现在的）生活比20世纪的生活好过多了.it 也是指代life. 从句子的前面用一般现在时态,而后面用过去时态可以看出,前面指的是“现在的”生活. 比较的内容还是哪个日子“好过”. 两句句子是同意句.

世纪公园Century Park,不加the

你认为18世纪英语文学以讽刺为主旋律吗?

mainly

21st Century 第二十一the twenty first

填while因为前面说了I'm going to.(我要去某地方),那就一定会在那儿的.所以不用if条件句再来作假设.直接用while引导时间状语从句即可.句意:---我要去世纪公园.---- 当你到了那儿的时候,你能给我买包盐吗?注:the cent...

A

turn at the turn of the century“在世纪之交时”；B.“变化”；C.“世纪，年代”；D.“时间，时代”。

Sandwich was an E(English) He lived in the 18th century.Sandwich was rich ,but he liked to play for m(money).he often played f(for) 24 hours ,and didn't even s(stop) to his meals.He ordered his servants to b(buy) him some meat and bread.He put the meat b(between) the two pices of bread and held the food in his l(left) hand while he played cards with his right hand.People liked Sandwich's idea,and from t(then) on they ate bread and meat a(as) Sandwich did.From the n(name) of the man,Sandwich,we have the word of the food sandwich today.

as never before 后面可以加逗号吗

为你提供正确译文：
随着二十世纪在前进,这场辩论也一瘸一拐地往前行.但是,知道六十年代初,隧道的正式前景才再现.

选A
He was a fomous artist in the 19th century.
第几世纪要用序数词.

will后面要加be
因为有very
very是形容形容词的 说明后面肯定有形容词.
而形容词前面一定要加动词或be动词.
改错题基本不会让你加动词 所以就是加be了.
后面的不全 看不了错还是没错.

帮你重写了一遍：
The twenty-first century is not only the era of biological science, but also an era of information science. The bioinformatics is one of the most important and advanced science development realms nowadays. It has already been extensively used for obtaining, handling, analyzing and managing the gene sequence data.
In this thesis, the bioinformatics and bio-database of relevant content is introduced, and blast algorithm and the correlation algorithm are described.
This thesis will create bioinformation platform with the .NET and the SQL Server of related technique. Through laboratory test of DNA sequences and relevant information on the internet, a DNA database is constructed, some operations are carried out, and the local database may be viewed and searched with the ASP.NET and ADO.NET. The local BLAST alignment system based on web has many excellent features. The way of retrieval, parameters selection and the pattern of results are the same as NCBI. It is easy to contrast with NCBI and communicate between researchers.

答案B
used to do过去常常.

cent.
缩写词 abbr.
1.=centime
2.=central
3.=[Lat] centum (=hundred)
4.=century
cent
名词 n. [C]
1.(美、加等国的货币单位,为dollar的1%)分
2.一分值的硬币
cent-
前缀 pref.
1.表示"百","百分之一"

这里的what=the place that,句子中的what is now Indiana and Ohio是一个表语从句,what做句子中的主语,where是不能充当主语的

这是一个将时间状语 not until the 11th century 提到句首的句型,句子要倒装.
句子原来的顺序是：The custom didn't reach Europe until the 11th century when a young lady brought a fork to Italy.将 not until 提前后,主句变成：Not until the 11th century did the custom reached Europe...原句中 when a young lady brought a fork to Italy 是时间状语从句作为插入语.因此要选 C（其中 reache 应为 reach）.

B It was .that .
强调句结构
（一楼二楼都误人子弟.）

C吧,意思是“直到11世纪的一位年轻女士将一把叉子带去了意大利,才将这文化传到了欧洲.”
这里是用倒装

应该是答案错了吧,我填that,因为再怎么说,girl都是先行词,这是定语从句

仅供参考
直到18 世纪中叶,动物(以及工厂)的分类在国际科学团体中造成巨大的peoblems,为把许多种类作为discove分类没有国际上认出的系统

1--3 ADB


本文是介绍英国民间风俗的文章：十九世纪英国妇女游泳的情况。
1.细节理解题。短文第三、四两句这样交代：Women did not walk about on the beach in their bathing dresses. They hired a bathing machine.（妇女们不穿她们浴用连衣裙在沙滩上步行。他们租用一台洗浴机。）从此可知使用洗浴机的人就是洗浴的妇女。故A是正确的答案。
2.细节理解题。文章第五句说上A bathing machine was used for changing in…（洗浴机被用来更换服装……）显然，在这个机器里更衣是为使洗澡人在下水之前不被人看见了。
3.细节理解题，只是要与整篇文章所提供的活动顺序联系起来，其活动的顺序正是该题检测的内容：付钱、租车、换衣、去沙滩、出洗浴机、下水。所以B项是正确的答案。

汽车的发明只是一个世纪以前,您可能知道各种cars'names ,但很多人不知道到底是谁发明的第一辆车
第一辆被发明而不是由一个英国人,而是由一个American.His名字亨利福特.
亨利出生在一个贫困家庭.他是长子6 children.When他是一个男孩,他becam感兴趣的手表和machines.When他12岁,他的母亲died.Soon他开展工作,车间为两美元和50美分的evebings week.In他修理手表的另一个美元周艰苦的生活使他坚定和干练.
当时有另外的兴趣生活中的年轻Ford.He希望提出machine.It可以运行,没有马匹而得名畜力carriage.Heovercame不少困难和在1893年4月,在“ horseseless运输”是发明的last.It是第一辆车.
后来亨利福特创办福特汽车Company.He是第一次真正的发明者车在Word .

Realism
Modernism
Symbolism

十六世纪末十七世纪初期,欧洲持续的（经济）增长使其摆脱了中世纪（4世纪中期至14世纪末期）相对低靡的困境.

in the nineteenth century 就是十九世纪
for example 1890s 翻译成十九世纪90年代
不是十九世纪

21世纪报夏季英语研讨会

在整个20世纪地球的温度上升了大约1华氏度.

翻译吗?

in the sixteen century = 在十六世纪
5 centuries ago

21st Century

C
序数词+ 形容词的最高级 表示第几~
Ms Smith thought the Century Park was the second largest in the city 史密斯女士认为 中心公园是城市里第二大的公园

1.这类句式中中国学生往往看到的形容词都是最高级的, 因此他们意识形成定式这里一定要填形容词最高级.
2.尽管事实上爱因斯坦的思想的确是上个世纪最伟大的思想之一, 但是在英文句子当中, 像这样的表达依然可以表达作者的意思就算great不用最高级.
3.这样的用法不属于任何语法上的以及事实上的错误.
4.你可能想到great前面有个the, 所以就想到great应该用最高级. 这个the如果移到last前面估计你就不会这么想了.

1.to
2.of

上句中,that引导名词性从句时,在句中不作任何的成分,也没有任何词义,只是起连接作用,而used to be前缺少主语,所以不能用that,而是it used to be.
that代替前面提到的名词（即“定冠词／物主代词＋名词”）,以避免重复.用于同名异物的场合.
比如：
The population of China is larger than that of Japan.(that代替the population)
My seat was next to that of the mayor.(that代替the seat)
He lost his gold watch and that was his grandfather’s.(that＝his gold watch）
根据这个知识点,life in the 21 century is much eaiser than that in the past 就是错误的.在The weather in Beijing is colder than that in Hunan.这个句子中,that代替前面的the weather,所以此句是对的.
下面我们讲下it的用法.
it用作人称代词,代替前文提到过的事物.用于同名同物的场合.
My watch is missing.I can’t find it anywhere.(it＝my watch)

现在是21世纪,翻译就是the 21th century,指的是2000-2100
the 18th century就是十八个世纪,直接翻译就行了
the 19th century才是19世纪

An abacus, also called a counting frame, is a calculating tool used primarily in parts of Asia for performing arithmetic processes. Today, abaci are often constructed as a bamboo frame with beads sliding on wires, but originally they were beans or stones moved in grooves in sand or on tablets of wood, stone, or metal. The abacus was in use centuries before the adoption of the written modern numeral system and is still widely used by merchants, traders and clerks in Asia, Japan, Africa, India and elsewhere.
The user of an abacus is called an abacist; he or she slides the beads of the abacus by hand.[1]
The earliest known written documentation of the Chinese abacus dates to the 14th century AD.[13]
The top of the abacus is called the heaven and the bottom is called the earth.[14]
The Chinese abacus known as the suànpán is typically 20 cm tall and it comes in various widths depending on the operator. It usually has more than seven rods. There are two beads on each rod in the upper deck and five beads each in the bottom for both decimal and hexadecimal computation. Modern abacuses have one bead on the top deck and four beads on the bottom deck. The beads are usually rounded and made of a hardwood. The beads are counted by moving them up or down towards the beam. If you move them toward the beam, you count their value. If you move away, you don't count their value.[citation needed] The suanpan can be reset to the starting position instantly by a quick jerk along the horizontal axis to spin all the beads away from the horizontal beam at the center.
Suanpans can be used for functions other than counting. Unlike the simple counting board used in elementary schools, very efficient suanpan techniques have been developed to do multiplication, division, addition, subtraction, square root and cube root operations at high speed.
In the famous long scroll Along the River During the Qingming Festival painted by Zhang Zeduan (1085–1145 AD) during the Song Dynasty (960–1297 AD), a suanpan is clearly seen lying beside an account book and doctor's prescriptions on the counter of an apothecary's (Feibao).
The similarity of the Roman abacus to the Chinese one suggests that one could have inspired the other, as there is some evidence of a trade relationship between the Roman Empire and China. However, no direct connection can be demonstrated, and the similarity of the abaci may be coincidental, both ultimately arising from counting with five fingers per hand. Where the Roman model (like most modern Japanese) has 4 plus 1 bead per decimal place, the standard suanpan has 5 plus 2, allowing use with a hexadecimal numeral system. Instead of running on wires as in the Chinese and Japanese models, the beads of Roman model run in grooves, presumably making arithmetic calculations much slower.
Another possible source of the suanpan is Chinese counting rods, which operated with a decimal system but lacked the concept of zero as a place holder. The zero was probably introduced to the Chinese in the Tang Dynasty (618-907 AD) when travel in the Indian Ocean and the Middle East would have provided direct contact with India, allowing them to acquire the concept of zero and the decimal point from Indian merchants and mathematicians.

这是常识,所以用户一般时,makes