[单项选择]A beautiful（）of the whole town from the top floor of Great Hotel made a deep impression on me.
A. view
B. vision
C. look
D. appearance

[单项选择]How far is the second floor window from the ground


A. About 12 feet.
B. About 6 feet.
C. About the height of an average man.
D. Nearly 10 feet.

[单项选择]On reaching the top floor I suddenly realized that I ______ my book on the service desk.
A. leaves
B. left
C. had left
D. was left

[单项选择]One of the advantages of living on the top floor of a high-rise is that you can get a good ______.
A. sight
B. scene
C. view
D. look

[单项选择]

Samples from the floor of a rock shelter in Pennsylvania were dated by analyzing the carbon they contained. The dates assigned to samples associated with human activities formed a consistent series, beginning with the present and going back in time, a series that was correlated with the depth from which the samples came. The oldest and deepest sample was dated at 19,650 years before the present, plus or minus 2,400 years. Skeptics, viewing that date as too early and inconsistent with the accepted date of human migration into North America, suggested that the samples could have been contaminated by dissolved "old carbon" carried by percolating groundwater from nearby coal deposits.
Which one of the following considerations, if tree, argues most strongly against the suggestion of the （）

A. No likely mechanism of contamination involving percolating groundwater would have affected the deeper sampies from the site without affecting the uppermost sampie
B. Not every application of the carbon-dating procedure has led to results that have been generally acceptable to scientists
C. There is no evidence that people were using coal for fuel at any time when the deepest layer might have been laid down
D. No sample in the series, when retested by the carbondating procedure, was assigned an earlier date than that assigned to a sample from a layer above it
E. No North American site besides the one in Pennsylvania has ever yielded a sample to which the carbon-dating procedure assigned a date that was comparably ancient

[单项选择]

As Philadelphia grew from a small town into a city in the first half of the eighteenth century, it became an increasingly important marketing center for a vast agricultural hinterland. Market days (1) the crowded city even more crowded, as farmers from within a (2) of 24 or more kilometers brought their sheep, vegetables, cider and other products for direct sale to the (3) . The High Street Market was continuously (4) throughout the period until 1736, (5) it (6) from Front Street to Third. By 1745 New Market was opened on Second Street. The next year the Callow Hill Market began (7) .

Along with market days, the (8) of twice-yearly fairs persisted in Philadelphia (9) after similar trading days had been discontinued in other colonial cities. The (10) provided a means of bringing handmade goods from (11) places to would-be buyers in the city. Linens and stockings from Germantown, (12) ,
A. operation
B. sale
C. cooperation
D. corporation