The expression“home in on”in the third sentence of paragraph 1 probably means _____ .

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• 1Which of the following is TRUE according to the passage、

  A.The first satisfactory magic bullet was developed by a German bacteriologist

  B.drugs for cancer often kill the patient along with the cancerous cells

  C.drugs for cancer often have some unpleasant side effects

  D.magic bullets proved to be effective only on ordinary cancer patients

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• 2In treating cancer patient, chemotherapy _____ .

  A.has proved to be effective

  B.has no effect at all

  C.often kill the patient

  D.has some limited effect

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• 3As we can see from the passage, the“magic bullet”really refers to _____ .

  A.a kind of chemicals

  B.a kind of instrument

  C.a specific kind of cell

  D.a way of treatment

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• 4The new date fits the human evolutionary pattern more easily than the old because it _____ .

  A.allows a more reasonable evolutionary pace

  B.indicates man is younger than was believed

  C.establishes the existence of man in the Pliocene Age

  D.indicates that man is nearly two million years old

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• 5The Zinjanthropus can be called a man because _____ .

  A.it made and used tools

  B.it walked erect

  C.its brain directed its toolmaking

  D.it probably communicated by speech

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• 6The new type of advertisement which is appearing in newspaper columns _____ .

  A.informs job hunters of the opportunities available

  B.promises useful advice to those looking for employment

  C.divides available jobs into various types

  D.informs employers of people available for work

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• 7Nowadays a demand for this specialised type of service has been created because _____ .

  A.there is a lack of jobs available for unievsity graduates

  B.there are so many toplevel jobs available

  C.great importance is attached to written application

  D.jobs are becoming so varied that one needs advice to choose the right one

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• 8In the past it was expected that firstjob hunters would _____ .

  A.write an initial letter giving their life history

  B.pass some exams before applying for a job

  C.have no qualifications other than being able to read and write

  D.keep any detailed information until they obtained an interview

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• 9The job history has become such an important document because _____ .

  A.there has been an increase in the number of jobs advertised

  B.there has been an increase in the number of applicants with degrees

  C.jobs are becoming much more complicated nowadays

  D.othersupporting experiences for jobs are no longer required.

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