Lesson plans are useful only before the lesson.()
When the readers read to get the general picture, only the main points are what they are interested in, not the detail.()
The radio waves used for radar are very short,only()long.
The only places in Australia that experience regular winter snowfall and icy conditions are()
The four strokes are called suction, compression, expansion and exhaust, but only () stroke provides the power to drive the ship.
On this chart only the principle () to navigation are shown.
If the instructions are D/P the importer’s bank will release the documents to the importer only against payment.
Not only the workers but also the manager (is, are) against the decision.
Easter Sunday is the only day of the year when tourists are allowed to wander over the White House lawn.
Prized for centuries for their beauty, roses are probably the world's _____ plants.
We are the only power willing to take the _____ in the long struggle to end the war.
Plum blossoms, orchids, bamboo and chrysanthemums are four representative plants, some of which symbolize the noble characters in Chinese culture.
The radio waves used for radar are very short , only______long .
To test whether plants are a sot,roe of methane, the scientists created
Only Lake () belongs to America completely while the other four are shared by the two
The Untied States and Canada are lands of____except for the Indians, who are the only true natives.
Passage Four:Questions 26 to 30 are based on the following passage.Even plants can run a fever, especially when they’re under attack by insects or disease. But unlike humans, plants can have their temperature taken from 3,000 feet away-straight up. A decade ago, adapting the infrared (红外线) scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂) spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest (害虫) problems.
Life on land probably began about 430 million years ago, though it has existed in the water for perhaps much as 3 000 million years. When we think of the first life on land, we probably think of strange animals coming out of the oceans, but, in fact, no animals could have been living if plants had not been on land first. Plants had to be on land before animals arrived. They supplied the first land animals with the surrounding and food necessary, since the plants are the only form. of life that
Only five of the firm's employees are______; all the other 19 were temporary.
Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For not many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights(了解). It is impossible to know today just what our Stone Age ancestors knew about plants. But from what we can observe of pre-industrial societies that still exist, a detailed learning of plants and their properties must be extremely ancient. This is logical. Plants are the basis of the food pyramid for all living things, even for other plants. They have always been enormously important to the welfare of peoples, not only for food, but also for clothing, weapons, tools, dyes, medicines, shelter, and a great many other purposes. Tribes living today in the jungles of the Amazon recognize literally hundreds of plants and know many properties of each. To them botany, as such, has no name and is probab-ly not even recognized as a special branch of "knowledge" at all.
The boy sitting by the window is the only one of the students who (is, are) from the
The presentation is scheduled the day after tomorrow. There are only__ days for me to get prepared()
The stories in the Canterbury Tales are only connected by the host of Tabard Inn.()
On the continent street cats are judged _____ on their merit—some are loved; some are only respected()