题目内容
1.None of our early ancestors could digest milk as adults because their bodies never had to----milk drinking simply wasn't an option.As people began to extract milk from animals,though,some people developed the ability to keep drinking it throughout their lives.Scientists now know of a milk-related mutation ( 变异) in our genes--the chemical instructions for life that we carry in almost every cell in our bodies.People who have a mutated form of one particular gene can drink milk just fine.People without the mutation tend to get sick from milk.
To figure out where,and possibly why,milk drinking started,some scientists have been looking at who has the milk-digesting mutation today.Patterns are striking.
Most adults in Northern and Central Europe are able to digest milk--and they do.Cheese and butter and other dairy products are popular in countries such as Sweden,Denmark,Germany and England.Because European settlers dominated North America,most people here can handle milk just fine,as well.That may explain why ice cream is such a popular dessert in the United States.
In much of Africa,Asia and South America,on the other hand,people tend to avoid dairy products because they lead to diarrhea (腹泻) and other stomach problems.(That's why you won't typically find cheese on the menu at a Chinese,Japanese or Ethiopian restaurant.) Native
Americans are also unable to digest milk.
Based on these genetic patterns,scientists have long thought that-milk drinking started inNorthern Europe,where dairy is an institution and the milk-digesting mutation is everywhere.
A recent study painted a different picture.With a computer medal,Thomas and colleagues looked at the spread of the milk-drinking mutation,farming and other related factor.Working backward,the scientists concluded that the first milk-thinkers lived in Central Europe around what's now Hungary about 7,500years ago.The practice didn't start farther north,as scientists had thought before.
66.Which of the following is the proper order of events according to the passage?C
a.Their children were able to digest milk as adults.
b.They got sick from the milk.
c.Some people got a mutation in their genes.
d.Some people tried drinking milk from animals.
e.Some people started to drink milk from animals on a regular basis.
A.c→d→b→e→a B.d→e→b→c→a C.d→b→e→c→a D.e→d→b→c→a
67.Most people in the USA can digest milk becauseB.
A.they have strong stomachs B.their ancestors were Europeans
C.that's where milk drinking stinted D.farmers raise a lot of cows there
68.Which of the following is LEAST likely to appear on the menu in a Japanese restaurant?A
A.Butter. B.Vinegar.
C.Fish. D.Beef.
69.Which of the following is the author most likely to agree with?B
A.Milk drinking first started in Northern Europe.
B.Milk drinking first started in Central Europe.
C.North American Indians were able to digest milk.
D.Dairy products are very popular in North Korea.
70.The main focus of the scientists'research wasD.
A.mutation of human genes B.development of the human stomach
C.why milk drinking started D.where milk drinking first started.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了最先开始喝牛奶的地方,事实上牛奶并不是一开始就能喝的,也有一个发展过程.
解答 66.C.细节理解题.通读全文,可知事件发生的顺序是有些人试着从动物身上喝牛奶,他们从牛奶中生病了,有些人开始定期喝动物的奶,有些人的基因突变,他们的孩子能像成年人一样消化牛奶;故选C.
67.B.推理判断题.根据第四段:Most adults in Northern and Central Europe are able to digest milk--and they do可知大多数美国人能消化牛奶,因为他们的祖先是欧洲人;故选B.
68.A.细节理解题.根据倒数第四段:That's why you won't typically find cheese on the menu at a Chinese,Japanese or Ethiopian restaurant可知黄油最不可能出现在日本餐厅的菜单上;故选A.
69.B.推理判断题.根据第四段:Cheese and butter and other dairy products are popular in countries such as Sweden,Denmark,Germany and England.Because European settlers dominated North America,most people here can handle milk just fine可知牛奶饮用首先在中欧开始;故选B.
70.D.主旨大意题.通读全文,可知文章主要讲了最先开始喝牛奶的地方,事实上牛奶并不是一开始就能喝的,也有一个发展过程;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.
The letters,sent to a late Baptist clergyman (牧师),were(2)Cput in a sealed plastic shopping bag near a(3)Din Atlantic,New Jersey.
Bill Lacovara,an insurance adjuster from Ventnor,New Jersey,said he got the bag while on a fishing trip last week.
The letters were(4)Cto the clergyman,who died in 2004.Someone cleaning his house may have(5)Bthe bag,which Lacovara found about 100 miles (160km) from Cooper's house.
They include one from a teenage girl asking God to(6)Aher for her wrongdoing,one from a prisoner who said he was(7)Cand someone had set a trap for him,and(8)Dfrom a man who wanted God's help winning the lottery,according to media reports.
Lavovara said he could have(9)Athem on eBay for up to $15,000(7,889 pounds) according to his prediction of the compete price and would have given the money to charity.But he has changed his mind because he said the move caused(10)Bto some religious people.
"They said they were(11)Din me,and I didn't want to do something that's going to create(12)Dresults."he told Reuters.
Some(13)Bhim to burn the letters,throw them back in the ocean or give them to a church,Lacovara said.
Lacovara said about a dozen clergymen have offered to take the letters,and he is evaluating the(14)Ato make sure the letters don't fall into the(15)Ahands.
1.A.donate | B.show | C.sell | D.owe |
2.A.hurriedly | B.privately | C.mysteriously | D.occasionally |
3.A.river | B.lake | C.hill | D.beach |
4.A.taken | B.offered | C.addressed | D.given |
5.A.collected | B.thrown | C.opened | D.destroyed |
6.A.forgive | B.punish | C.adjust | D.charge |
7.A.friendly | B.correct | C.innocent | D.energetic |
8.A.others | B.another | C.the other | D.one |
9.A.auctioned | B.bought | C.donated | D.discounted |
10.A.damage | B.offence | C.injury | D.worry |
11.A.absorbed | B.involved | C.interested | D.disappointed |
12.A.final | B.direct | C.same | D.bad |
13.A.forced | B.urged | C.questioned | D.pleased |
14.A.requests | B.orders | C.commands | D.invitations |
15.A.wrong | B.poor | C.tight | D.firm |