题目内容
听力
第一节
请听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。在听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。
1．When did the basketball match begin yesterday afternoon？
A．At 2∶30
B．At 2∶45
C．At 3∶10
2．What is the possible relationship between the two speakers？
A．Colleagues(同事)．
B．Employer and employee．
C．Mother and son．
3．Where did this conversation most probably take place？
A．In a bank．
B．In a hospital．
C．In a hotel．
4．How does the man control his weight？
A．By going on diet．
B．By exercising
C．y eating fruits and vegetables
5．How did the woman feel about the price of the books？
A．She thought they were expensive
B．She liked the books
C．She thought they were cheap
第二节
请听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C、三个选项中选出最佳选项。在听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，每个小题将给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6至第7题。
6．When did Steven start to feel bad？
A．On Tuesday．
B．On Monday．
C．On Sunday
7．What’s the possible relationship between the two speakers？
A．Friends．
C．Husband and wife
听第7段材料，回答第8至第10题。
8．What is William probably going to do on Friday evening？
A．To go to a pub．
B．To drink at home．
C．To wash his car
9．What does William usually do on Saturday morning？
A．He reads newspapers．
B．He plays chess．
C．He washes his car
10．What does Betty usually do on Sunday morning？
A．She plays chess with her friends
B．She reads the Sunday newspapers in the garden
C．She reads Sunday newspapers to her father
听第8段材料，回答第11至第13题。
11．How many hamburgers do they decide to buy at last？
A．30
B．50
C．15
12．For whom do they decide to buy some chicken？
A．Those who like hamburgers and hot dogs
B．Those who dislike hamburgers or hot dogs
C．Those who will not go to the picnic
13．What might they not plan to buy？
A．Fruit．
B．Potato chips．
C．Soft drinks
听第9段材料，回答第14至第16题。
14．What do we learn about the man from the conversation？
A．He has applied for a part-time job
B．He is 21 years old
C．He is a teacher at the moment
15．What sport does the man like best？
A．Table tennis．
B．Tennis．
C．Football
16．How much will the man get if he works for two weeks？
A．157 pounds．
B．175 pounds．
C．350 Pounds
听第10段材料，回答第17至第20题。
17．What does Kerilin Tian do？
A．She’s a manager．
B．She’s a secretary．
C．She’s a visitor
18．When does she begin to work？
A．At 6∶30 am．
B．At 7∶30 am．
C．At 8∶30 am
19．What does she do at 10∶30 in the morning？
A．She has a break．
B．She makes a phone call．
C．She checks her e-mail
20．What does she think of her job？
A．It’s tiring．
B．It’s challenging．
C．It’s interesting
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
