Professor Heinz Wolff，who has died aged 89，was a bioengineering pioneer.He established the discipline，named it and，in a 60-year career，made significant contributions to medical research.But to the British public，he was best known as the "dotty scientist" who fronted The Great Egg Race，a BBC show in which colour-coded teams were set engineering challenges（the first was to transport an egg in a vehicle powered by rubber bands）.With his trademark bow tie，half-moon glasses and Mittel-European accent，he looked really like Professor Branestawn，as described by W.Heath Robinson.Yet while he cheerfully exploited his reputation as a "peculiar egghead"，he was very serious about his work and inspired thousands of young people to consider scientific careers.
   Born in Berlin in 1928，Heinz Wolff was the son of Jewish parents.His mother died in 1938，and the next year the family fled.They arrived in Britain on the day war was declared."We really cut it rather fine，" he said on Desert Island Discs in 1998.After leaving school，he worked as a technician at the Radcliffe Infirmary in Oxford，where he invented a machine to count red blood cells，and then at the National Institute for Medical Research's pneumoconiosis research unit in Cardiff，where he designed a means of measuring dust levels in coal miners.He went on to study at University College London and graduated with a first in physics and physiology.Then，in 1983，he founded the Institute for Bioengineering at Brunel University.His particular interest was in technologies to improve the lives of older people，but he was also heavily involved in space research and worked as an adviser to the European Space Agency.
   Wolff had made his first appearance on TV on Panorama in 1966，encouraging Richard Dimbleby to swallow a "radio pill".On The Great Egg Race，which ran from 1979，his task was to get opponent teams representing organizations such as the chemical company ICI.Challenges included building a hovercraft from a lawnmower，and inventing a bicycle that could ride on water.Marks were awarded for entertainment value and technical accomplishment.The show ended in the mid-1980s，but Wolff continued to judge scientific competitions，on TV and elsewhere.A natural entertainer with an inexhaustible curiosity about the world，he said he'd be happy to dress up as a clown if it got children interested in science.

（1）The word "dotty"（paragraph1）is closest in meaning to

A

A

.
A．peculiar
B．serious
C．famous
D．genius
（2）Which of the following statements is TRUE of Heinz Wolff according to the passage？

B

B

A．His family left Berlin after World War Ⅱ began.
B．He used to major in physics and physiology.
C．He invented a machine while in University College London.
D．His interest lay in helping those living in war-stricken areas.
（3）Heinz Wolff didn't mind looking ridiculous as long as

C

C

.
A．he could keep being curious about the world
B．he could combine entertainment and technology
C．he could help arouse children's interest in science
D．he could appear on TV to judge scientific competitions
（4）Which of the following is an achievement made by Heinz Wolff？

D

D

A．Representing a chemical company.
B．Designing a method to count red blood cells.
C．Being the first scientist to front TV shows.
D．Setting up the subject of bioengineering.