The Reading / Listening - Human Teeth - Level 1

Researchers from Sweden have found how humans got teeth. They say human teeth "first evolved 400 million years ago" from an ancient fish. They studied a fossil of the fish. It was difficult to study because the fish is inside rock. They used the strongest X-ray machine in the world to look at the fish. They found that the fish's teeth were very similar to human teeth. Humans and 60,000 species of vertebrates on Earth today come from this fish.



The fish was one of the earliest jawed vertebrates with teeth. A researcher said: "[Our] findings change our whole understanding of the origin of teeth." He said: "Their jawbones...seem to be directly ancestral to our own. When you grin at the bathroom mirror in the morning, the teeth that grin back at you can [follow] their origins right back to [that fish]." Another researcher said: "Nobody expected to find teeth so deep on the evolutionary tree."

Try the same news story at these levels:

    Human Teeth - Level 0 Human Teeth - Level 2   or  Human Teeth - Level 3

Sources
  • https://www.dailymail.co.uk/sciencetech/article-8506673/Human-teeth-evolved-400-million-years-ago-strange-armoured-fish.html
  • https://www.inverse.com/science/miniature-ancient-reptile-discovery
  • https://www.earth.com/news/the-origin-of-human-teeth-dates-back-400-million-years/


Make sure you try all of the online activities for this reading and listening - There are dictations, multiple choice, drag and drop activities, crosswords, hangman, flash cards, matching activities and a whole lot more. Please enjoy :-)



Phrase Matching

Paragraph 1

  1. Researchers from
  2. found how humans
  3. teeth first evolved
  4. from an ancient
  5. They studied a fossil
  6. the strongest X-ray
  7. very similar
  8. 60,000 species
  1. to human teeth
  2. fish
  3. machine
  4. got teeth
  5. of vertebrates
  6. Sweden
  7. of the fish
  8. 400 million years ago

Paragraph 2

  1. The fish was one of the
  2. jawed vertebrates
  3. Our findings change our whole
  4. the origin of
  5. When you grin at the
  6. the teeth that grin
  7. Nobody expected to find
  8. on the evolutionary
  1. back at you
  2. teeth
  3. tree
  4. with teeth
  5. teeth so deep
  6. bathroom mirror
  7. earliest
  8. understanding

Listening — Listen and fill in the gaps

Researchers from Sweden have (1) ___________________ got teeth. They say human (2) ___________________ 400 million years ago" from (3) ___________________. They studied a fossil of the fish. It was (4) ___________________ because the fish is inside rock. They used the strongest X-ray machine in the world to look at the fish. They found that the fish's teeth were very (5) ___________________ teeth. Humans and 60,000 species of vertebrates on Earth (6) ___________________ this fish.

The fish was one of (7) ___________________ vertebrates with teeth. A researcher said: "[Our] (8) ___________________ whole understanding of the (9) ___________________." He said: "Their jawbones...seem to be directly (10) ___________________ own. When you grin at the bathroom mirror in the morning, the teeth that grin back at you can [follow] their (11) __________________ to [that fish]." Another researcher said: "Nobody expected to find teeth (12) ___________________ the evolutionary tree."

Put a slash (/) where the spaces are

ResearchersfromSwedenhavefoundhowhumansgotteeth.Theysayh
umanteeth"firstevolved400millionyearsago"fromanancientfish.The
ystudiedafossilofthefish.Itwasdifficulttostudybecausethefishisinsid
erock.TheyusedthestrongestX-raymachineintheworldtolookatthe
fish.Theyfoundthatthefish'steethwereverysimilartohumanteeth.Hu
mansand60,000speciesofvertebratesonEarthtodaycomefromthisfis
h.Thefishwasoneoftheearliestjawedvertebrateswithteeth.Aresearc
hersaid:"[Our]findingschangeourwholeunderstandingoftheoriginof
teeth."Hesaid:"Theirjawbones...seemtobedirectlyancestraltoourow
n.Whenyougrinatthebathroommirrorinthemorning,theteeththatgri
nbackatyoucan[follow]theiroriginsrightbackto[thatfish]."Anotherre
searchersaid:"Nobodyexpectedtofindteethsodeepontheevolutionar
ytree."

Student survey

Write five GOOD questions about this topic in the table. Do this in pairs. Each student must write the questions on his / her own paper. When you have finished, interview other students. Write down their answers.

(Please look at page 12 of the PDF to see a photocopiable example of this activity.)

Discussion — Write your own questions

STUDENT A’s QUESTIONS (Do not show these to student B)

(a) ________________

(b) ________________

(c) ________________

(d) ________________

(e) ________________

(f) ________________

(g) ________________

(h) ________________

STUDENT B’s QUESTIONS (Do not show these to student A)

(i) ________________

(j) ________________

(k) ________________

(l) ________________

(m) ________________

(n) ________________

(o) ________________

(p) ________________





Free writing

Write about this topic for 10 minutes. Comment on your partner’s paper.

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Answers

(Please check your answers against the article above.

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