Example sentences of "[verb] been known [prep] [art] [adj] " in BNC.
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| 1 | The toxic nature of some animals has been known for a long time and man has utilised their venoms and poisons for various purposes . |
| 2 | The effect of early experience on the mating preferences of birds and mammals has been known for a long time . |
| 3 | It has been known for a long time , and has led to the more modern practice called ‘ foliar feeding ’ , in which the purpose is not so much to correct deficiencies , but to encourage a boost in performance , yield and so on by spraying major element solutions on to the leaves in the same way . |
| 4 | It has been known for a long time that , partly due to their immense size , elephants can hear much lower sounds than we can . |
| 5 | It has been known for a tough roadman-sprinter to control the race in these big hills , not to lose much time on the Ballon , then rejoin the leading group , dominate them on the long downhill run into Mulhouse and win the stage . |
| 6 | Where the ranges of the tiger and the Asian lion overlap , it has been known for the two to interbreed . |
| 7 | In fact it has been known since the late 1950s ( see for example Nature , vol. 208 , p 423 ) that Po is widely distributed in the environment , and in man , as a result of atmospheric fall-out of the decay products of natural radon-222 , with an abundance in northern temperate latitudes of about 0.06 curie per sq.km or of the order of 10 6 curies in total over the surface of the world land mass . |
| 8 | The site , near modern Kerma , has been known since the 1920s but the city underneath has only emerged over the last ten years . |
| 9 | It has been known since the 1970s that the vehicles which have dramatically increased our mobility in the last 50 years have also constituted a grave danger . |
| 10 | One in the British Museum ( fig. 77 ) has been known since the eighteenth century and is called the Choiseul-Gouffier Apollo after a former owner . |
| 11 | Although serious research on the subject of mobbing did not begin until around the time of the Second World War , it has been known as a natural phenomenon for over 2,500 years . |
| 12 | The resemblance is superficial and since 1946 the polled has been known as the British White . |
| 13 | I I think that er what has been known as an inner northern bypass , that is a road which passes between Harrogate and Knaresborough , could act as a very effective relief road for the A fifty nine . |
| 14 | Oliver North to Iran , travelling on Irish passports , to organize the sale of TOW missiles and launchers to the Iranian government in exchange for the release of American hostages ; details of money transfers and bank accounts , with dates and places — most of it based on incidents and conversations that could only have been known to the Iranian or American negotiators . |
| 15 | Atomic fission had been known to the general public for a decade ; the awareness of fusion bombs was only four years old , so the possibility of a ‘ third and revolutionary way to produce a nuclear reaction without uranium , as in the fission reaction , or million degree heat as in the fusion reaction ’ generated a lot of excitement . |
| 16 | It had been known for a long time that histamine was responsible for producing many allergies and the first antihistamine drug was produced in France in 1937 . |
| 17 | As I 've mentioned already in the context of metaphors of memory , the phenomenon of ‘ animal electricity ’ and its relation to neural activity had been known for a long time — at least since Galvani 's demonstration in Bologna in the 1790s that electrical pulses caused a frog 's legs to twitch . |
| 18 | He pursued the antimicrobial properties of soil organisms , particularly actinomycetes , which had been known since the 1920s to produce inhibitory substances . |
| 19 | Other diuretics have been known for a long time , especially arsenical compounds of mercury . |
| 20 | These are called reaves and , while they have been known for a long time , their age , extent and probable purpose have only recently been recognised . |