16.We take our skin for granted until it is burned ()repair.

3.If the whole operation ()beforehand， a great deal of time and money would have been lost.

A. 　was not planned

B. 　has not been planned

C. 　had not been planned

D. 　were not planned

35.You don’t have to pay for your flights: they’re ()in the price of your holiday.

A. 　concluded

B. 　held

C. 　settled

D. 　included

1I.Tony is very disappointed ()the results of the exam.

A. 　with

B. 　for

C. 　toward

D. 　on

50.Humble ()it may be， there is no place like home.

A. 　as

B. 　although

C. 　that

D. 　how

42.He swallows his words so much that I can never ()what he is saying.

A. 　make out

B. 　make up

C. 　deal with

D. 　point out

2. Passage EighteenAn idea that started in Seattle’s public library has spread throughout America and beyond.The concept is simple: help to build a sense of community in a city by getting everyone to read the same book at the same time.In addition to encouraging reading as a pursuit (追求)to be enjoyed by all， the program allows strangers to communicate by discussing the book on the bus， as well as promoting reading as an experience to be shared in families and schools.The idea came from Seattle librarian Nancy Pearl who launched the “If All of Seattle Read the Same Book” project in 1998.Her original program used author visits， study guides and book discussion groups to bring people together with a book， but the idea has expanded to many other American cities， and even to Hong Kong.In Chicago， the mayor appeared on television to announce the choice of To Kill a Mockingbird as the first book in the “One Book， One Chicago” program.As a result， reading clubs and neighborhood groups sprang up around the city.Across the US， stories emerged of parents and children reading to each other at night and strangers chatting away on the bus about the plot and character.The only problem arose in New York， where local readers could not decide on one book to represent the huge and diverse population.This may show that the idea works best in medium-sized cities or large towns， where a greater sense of unity can be achieved.Or it may show that New Yorkers rather missed the point， putting all their energy and passion into the choice of the book rather than into discussion about a book itself.Ultimately， as Nancy points out， the level of success is not measured by how many people read a book， but by how many people are enriched by the process， or have enjoyed speaking to someone with whom they would not otherwise have (shared a word).Why was it difficult for New Yorkers to carry out the project?

41.Important people don’t often have much free time as their work ()all their time.

A. 　takes away

B. 　takes up

C. 　takes over

D. 　takes in

43.Public attention at the moment is ()the problem of industrial relations.

A. 　focused on

B. 　searched for

C. 　looked upon

D. 　called for

40.Theory is based on practice and ()serves practice.

A. 　in turn

B. 　in tone

C. 　in return

D. 　in practice

2. Passage Thirty-ThreeWe 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 or lack of records.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 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 this case we can look primarily at the Y chromosome (染色体)，” explains Ugo Perego， a member of the BYU Molecular Genealogy research team.The possible research of family trees is based on the fact that ().