Summarise an Information Text
RI.4.2
Read the text, then answer the questions.
Why Clocks Agree
Until the 1840s, every British town kept its own time, set by the sun. Noon in Bristol was about ten minutes after noon in London. That was no problem while the fastest thing on the road was a horse. The railways changed it. A timetable cannot work if every station measures noon differently, and trains sharing a track need to agree about when. So the railway companies imposed London time on their whole network. People called it railway time. Some towns kept two minute hands on the town clock for years, one local and one railway. In 1880 Parliament made a single time legal across the country. The sun had been overruled by the timetable.
- 1. Summarise this text.
How Penicillin Was Found
In 1928 Alexander Fleming went on holiday and left a stack of dishes on a bench. Each held a colony of bacteria. When he came back, one dish had a spot of mould on it. Around the mould was a clear ring where the bacteria had died. Fleming realised the mould was producing something that killed bacteria. He named it penicillin and published a paper. Almost nobody noticed. Ten years later, Howard Florey and Ernst Chain read that paper and tried to make penicillin in quantity. That turned out to be the hard part: it took two thousand litres of mould fluid to treat one patient. By 1944 the problem had been solved and penicillin was reaching soldiers in the field.
- 1. Summarise this text.
LessonPrint · RI.4.2 · Set 18 · free to copy for classroom use