（湖北省部分重点中学2009届高三第二次联考）

D

y brother-in-1aw opened the drawer of my sister’s cupboard and took out a package．He said。“This is a new silk slip（衬裙）．Jane bought it in New York nine years ago．She never wore it．She was saving it for a special occasion．I guess this is the occasion．”

It was an exquisite（精美的）handmade silk slip．The price tag on it was still attached．

He took the slip from me and put it on the bed，with the other clothes we were taking to the mortician（殡仪员）．His hands fingered on the soft material for a moment, then he shut the drawer and turned to me．“Don’t ever save anything for a special occasion．Every day you’re alive is a special occasion．’’

His words have changed my mind．I’m spending more time with my family and less time on meetings．I’m trying to recognize these moments now and cherish them．I’m not saving anything．I wear my good skirt to the market if I feel like it．I can pay $28·49 for a small bag of  groceries．I’m not saving my good perfume for special parties．If something is worth seeing or hearing or doing，I want to see and hear and do it now．“Someday” has disappeared in my vocabulary．

I’m not sure what Jane would have done if she had known she’d not be here for the tomorrow we all take for granted．I’m guessing Jane would have called family members and a few close friends．She might have apologized to her former friends for their past quarrels．She’d have gone out for a Chinese dinner, her favorite food．

I’m trying hard not to put off, hold back。or save anything that would add laughter to our fives．Every morning I open my eyes。I tell myself that every day, every minute，every breath is a gift．

73．Why didn’t Jane wear the brand new silk slip?

A．She meant to wear it on her death．     B．She wanted to save it for her sister．

      C．She thought it was too dear．               D．She saved it for a special occasion

74．After Jane’s death．the author begins to             ．

A．treasure the simple pleasure of life               B．spend more time having meetings

C．save more money for necessities                 D．care about her special parties

75．What does the underlined sentence “Someday” has disappeared in my vocabulary．”（in Paragraph4）mean?

A．I prefer to leave out the word “someday” in my speech．

B．“Someday” is found missing from my old dictionar．

C．I will not delay enjoying the pleasure of life

D．I decide not to enjoy something good at the moment·

76．It can be inferred from the passage that              ．

A．it makes sense to follow our dream

B．we tend to leave good things until the last minute

C．we should take pleasure in our work

D．it is meaningless to save something for the future

  

   We all know that DNA has the ability to identify individuals, but because it is inherited, there are also regions of the DNA strand which can relate an individual to his or her family(immediate and extended);tribal group and even an entire population. Molecular Genealogy(宗谱学)can use this unique identification provided by the genetic markers to link people together into family trees。Pedigrees（家谱）based on such genetic markers can mean a breakthrough for family trees where information is incomplete or missing due to adoption，illegitimacy（违法）or lack of record. There are many communities and populations which have lost precious records due to tragic events such as the fire in the Irish courts during Civil war in 1921 or American slaves for whom many records were never kept in the first place.

   The main objective of the Molecular Genealogy Research Group is to build a database containing over 100,000 DNA samples from individuals all over the world. These individuals will have provided a pedigree chart of at least four generations and a small blood sample. Once the database has enough samples to represent the world genetic make-up, it will eventually help in solving many issues，regarding genealogies that could not be done by relying only on traditional written records. Theoretically, any individual will someday be able to trace his or her family origins through this database.

   In the meantime, as the database is being created, molecular genealogy can already

Verify（鉴定）possible or suspected relationships between individuals。“For example，if two men sharing the same last name believe that they are related，but no written record proves this relationship，we can verify this possibility by collecting a sample of DNA from both and looking for common markers（in these case we can look primarily at the Y chromosome（染色体），”explain Ugo A. Perego, a member of the BYU Molecular Genealogy research team.

1) The possible research of family trees is based on the fact that _____________.

  A) genetics has achieved a breakthrough

  B) genetic information contained in DNA can be revealed now

  C) each individual carries a unique record of who he is and how he or related to others

  D) we can use DNA to prove how distant an individual is to a family, a group or a population

2) If two men suspected for some reason they have a common ancestor,__________.

  A) we can decide according to their family tree

  B) we can find the truth from their genetic markers

  C) we can compare the differences in their Y chromosome

  D) we can look for written records to prove their relationship

3) Which of the following CAN NOT be inferred from the passage?

  A) we are a walking, living, breathing record of our ancestors

  B) Many American slaves did not know who their ancestors were

  C) An adopted child generally lacks enough information to prove his identify

  D) Molecular genealogy can be used to prove a relationship between individual