A half day’s rent is charged （)a room not vacated after 12:00 noon.

A . to carry cargoes of low density B . when stowage space is limited C . to carry cargoes such as steel products or drums D . to double the stowage capacity of the vessel

A . many B . much C . more

A . stop engines B . hold course and speed C . alter course to port D . sound the danger signal

A . seaworthy； be fined in our port B . un-seaworthy； be disassembled in our port C . seaworthy； be assembled in our port D . un-seaworthy；be detained in our port

A . 1 day B . 5 days C . 7 days D . 31 day

A、a day B、a year C、a month D、a week

(26) A．I spent an hour each on psychology and mathematics. B．I studied mathematics twice as long as psychology. C．I worked for four hours last night. D．I studied for all but two hours last night.

A．The EU, which accounts for over half Britain’s exports, is discussing economic reform． B．The EU which accounts for over half Britain’s exports is discussing economic reform．

A．real work tasks B．having lunch C．commuting D．socializing

A. The second Saturday in May. B. The second Sunday in May. C. The first Sunday in May. D. The first Saturday in May.

A、three times as much B、as much three times C、much as three times D、as three times much

A.enlarge the wealth disparity between the haves and have-nots B.reduce the renter’s commitment to the community C.slow the recovery of economy D.curb social mobility

&8226;You will hear five short recordings. &8226;For each recording, decide who is speaking. &8226;Write one letter (A--H) next to the number of the recording. &8226;Do not use any letter more than once. &8226;You will hear the five recordings twice. A an undergraduate B a parent C a personnel executive D a sociologist E a consultant for job-seekers F a radio journalist G a psychologist H a general manager

According to Dr. Scorer, Benjamin Franklin first proved thunderclouds are charged with electricity. Later investigation showed that the tops of the clouds have a great positive charge and the bottoms a great negative charge. When the charges become great enough to break down the insulating properties of the air, lightening flashes carry the electricity within the cloud, or from cloud to cloud, or from cloud to earth. But the question remained: how do the charges develop within the cloud？ To seek the cause, Dr. Scorer and his colleagues at the college first duplicated thundercloud currents in a liquid tank. They doubt that mixture takes place only in the tops of the clouds. Next a study of thunderclouds over the North Atlantic showed that lightening occurs only when the air temperature around the cloud is below freezing. Particles at the top of the cloud begin to freeze, but those in the remainder of the cloud stay unfrozen although below freezing temperature. To measure moisture, the scientists sent planes equipped with external refrigerated rods into the clouds. The idea was that moisture would freeze on the rods and could later be measured. The men found, however, that some of the moisture particles bounced off the rods. This accidental discovery set the scientists on a new course of action. In the laboratory, S. E. Reynolds whirled a refrigerated rod through ice particles and found that the particles bounced off the rod acquired a positive charge. This was the missing link. Without hail and super-cooled clouds, he concluded there could be no lightening. According to the article, Benjamin Franklin was the first to prove that _______. A．lightening is caused by hail falling through super - cooled clouds B．thunderclouds are not charged with electricity C．thunderclouds are charged with electricity D．lightening was not an invention of the devil

A．rough B． popular C． imcome D． vist

A．twice many than B．twice as much as C．twice the same as D．twice as many as