.... One day while on a walk，he realized that his shoes were starting to wear out.He knew he had to buy a new pair.But he didn't want to buy the wrong shoes.He collected some books and spent a lot of time reading about how to know if a pair of shoes fit properly. Following the books' inst...
...上这样一段话：These
synthetic plastics take several hundred years to biodegrade, which can be bad
for the environment.If
people throw plastic items on the ground or into rivers, they can end up in the
sea.(1)
to biodegrade 是悬空不定式吗？意味着to biodegrade 是及物动词？(b)
...
Discoveries in science and technology are thought by “untaught minds” to come in blinding flashes or as the result of dramatic accidents. 本句中to come in blinding flashes是做什么成分呢？come in怎么理解？
Researchers are looking at how new technology may be delaying the point which college-bound students truly become independent from their parents.
请问这里可以将which改成when吗？答案是在which前面加上at
...如何分析，谢谢！Treat people with respect, whether they are rich or poor. = (formal)
Treat people with respect, whether they be rich or poor. = (formal) Treat
people with respect, be they rich or poor.There's always been an affinity between us.
①Optimistic estimates put the global panda population at between 2,000 and 3,000 individuals.请问老师这里的at between中的at是介词(达到)的用法，还是动词词组 put at(猜测/估计)的用法。②The ancient animals had a wider range of 15N/14N and 13C/12C ratios in their bones...
...考题的完形填空题（答案已填好）：As I drove my blue Buick into the garage, I saw that a yellow Oldsmobile was parked too close to my space. I had to drive back and forth to get my car into the narrow space. That left hardly enough room to open the door. Then one day I arrived home fir...