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30 tháng 10 2023

Elite (0) ...competitors..... like the Jamaican Usain Bolt have regularly been clocked running at nearly 45 kilometres per hours. Such speed would have seemed (1) ...unbelievable... not so long ago. Scientists now suggest that humans can move (2) .....even faster.... faster than even that, perhaps as fast as 65 kilometres  per hour

For years, it was assumed that simple muscle power determined human speed, but recent research suggest otherwise. The most important (3) ....limiting.... factor appears to be how quickly the muscles can contract and thus (4) ....reduce.... the time a runner's foot is in contact with the ground

Is our athletic ability inherited ? Researcher Alun Williams has (5) .....identified....... twenty - three inherited factors that influence sporting performance, such as the (6) ...efficient.... use of oxygen, and strength. As world population rises, predicts Williams, the (7) ....likelihood ..... of there being someone with the right genes for these twenty - three (24) ...characteristics .... will increase noticeably and thus faster runners are likely to emerge in future

19 tháng 7 2021

CASUALLY

8 tháng 10 2021

1 D

2 C

3 C

4 C

5 A

6 B

7 A

8 C

9 B

10 D

11 C

12 A

13 B

14 C

15 B

16 D

17 B

18 D

19 A

20 A

8 tháng 10 2021

Giúp mik tiếp đi

19 tháng 5 2021

Part 1

1 if

2 after

3 that

4 so

5 should

6 from

Part 2

1b 2e 3a 4f 5c 6d

Part 3

1 conservationists

2 to take

3 hasn't provided

4 works

5 disappointed

6 achievement

7 polluted

8 dissolve

Part 4

1 will get -> get

2 amazing -> amazed

Part 5 

1 use fresh water economically

2 school because the bus

3 they should keep

4 which is in this

Part 6

1 fond

2 watching

3 listened

4 or

Part 7 

1T 2F 3T 4F

19 tháng 5 2021

Part 1

1 into

2 which

3 happily

4 aspect

5 if

6 compulsory

Part 2

1c 2f 3b 4g 5a 6e

Part 3

1 opened

2 to be finished

3 repairing

4 driving

5 harmful

6 modernize

7 environmentalists

8 effectively

Part 4

1 disappointing -> disappointed

2 come -> came

Part 5

1 succeed although he tried 

2 my father could speak

3 seen such an interesting 

4 being made to protect

Part 6

1 forest

2 climate

3 in

4 fortunatelt

Part 7

1T 2F 3F 4F

25 tháng 10 2022

One of the biggest environmental impacts of human activities is air pollution