名著英文读后感1500字

[外国名著英文读后感]We cant imagine living in a world without light and sound,so we cant perceive the spiritual world of disabled people who are blind,deaf or even dumb.He you ever...+阅读

名著英文读后感1500字

世界名著-老人与海英文读后感 novel description is one year near sixty years of age senior fisherman, when alone goes to sea in one fishing, fished one big fish, actually did not pull. The senior fisherman socialized several days after the fish, only then discovered this was the big marlin which one surpassed the oneself fishing boat several fold, although knew perfectly well very difficult to win, but still did not give up. Afterwards and further because in the big marlin wound fish fishy smell brought in several crowds of shark fish snatches the food, but the old person still did not hope like this to give up, finally highlighted encircles tightly, returned to the big fish belt the fishing port, lets other fishermen not admire already. When I read ＂ the senior fisherman think: Here to the seacoast really was too near, perhaps could have a bigger fish in a farther place... ＂ When, I extremely admire this senior fisherman, because he by now already projected on some fish, but he had not settled to the present situation, but was approaches the bigger goal advance. Again has a look us, usually meets one slightly is difficult, we all complain incessantly. We will be the motherland future, will be supposed to like this old person same mind lofty aspiration, will even better pursue even better, the bigger goal.

求High Fidelity的读后感英文的1500字左右

A rolling mill is a machine or factory for shaping metal by passing it between a pair of work rolls. Rolling mills are often incorporated into integrated steelworks, but also exist as separate plants and can be used for other metals, and other materials. Rolling mills historically have been of several kinds: Depending on the temperature of the metal being rolled, rolling mills are typically hot or cold rolling mills. A slitting mill was used to cut flat bar iron into rods for nail-making. A tinplate works normally contained at least two rolling mills, one for hot rolling and the other for cold rolling single plates, prior to tinning. From the Industrial Revolution, puddled iron, after consolidation with a powered hammer (shingling), was rolled into bar iron using a rolling mill with grooved rolls. The grooves provided were progressively smaller, so that on successive passes through the rolls, the cross-section of the bar became smaller and the bar itself longer. By designing the rolls appropriately, it is possible to obtain iron or steel with various cross-sections, including I-shaped girders and railway rails. ------------------------------- Automatic gain control (AGC) is an adaptive system found in many electronic devices. The average output signal level is fed back to adjust the gain to an appropriate level for a range of input signal levels. For example, without AGC the sound emitted from an AM radio receiver would vary to an extreme extent from a weak to a strong signal; the AGC effectively reduces the volume if the signal is strong and raises it when it is weaker. AM radio A very common and typical example is the AGC used in AM radio. Such a receiver is essentially linear—the sound volume is proportional to the radio signal strength, because the information content of the signal is carried by the changes of amplitude of the carrier wave. If the circuit were not linear, the modulation could not be recovered with reasonable fidelity. However, the strength of the signal received will vary widely, depending on the power and distance of the transmitter, and signal path attenuation. The AGC circuit keeps the receiver in its linear operating range by detecting the overall strength of the signal and automatically adjusting the gain of the receiver to maintain an approximately constant average output level. For a very weak signal the AGC has no effect; as the signal increases, the AGC reduces the gain. It is usually disadvantageous to reduce the gain of the front end of the receiver on weaker signals as this can worsen signal-to-noise ratio and blocking rejection. Many designs reduce the gain of the first stage only for stronger signals, known as a delayed AGC circuit. Radar A related application of AGC is in radar systems, as a method of overcoming unwanted clutter echoes. This method relies on the fact that clutter returns far outnumber echoes from targets of interest. The receiver's gain is automatically adjusted to maintain a constant level of overall visible clutter. While this does not help detect targets masked by stronger surrounding clutter, it does help to distinguish strong target sources. In the past, radar AGC was electronically controlled and affected the gain of the entire radar receiver. As radars evolved, AGC became computer-software controlled, and affected the gain with greater granularity, in specific detection cells. Audio/video An audio tape generates a certain amount of noise. If the level of the signal on the tape is low, the noise is more prominent, i.e., the signal-to-noise ratio is lower than it could be. To produce the least noisy recording, the recording volume should be set as high as possible without being so high as to clip or seriously distort the signal. In professional high-fidelity recording the level is set manually using a peak-reading meter. If high fidelity is not a requirement, a suitable recording level can be set by an AGC circuit which reduces the gain as the average signal level increases. This allows a usable recording to be made even for speech some distance from the microphone of an audio recorder. Similar considerations apply with VCRs. The disadvantage of AGC is that when recording, say, music with quiet and loud passages, the AGC will tend to make the quiet passages louder and the loud passages quieter, reducing the dynamic range and losing musical quality. Most reel-to-reel tape recorders and cassette decks have AGC circuits. Those used for high-fidelity allow it to be overridden manually. Most VCR circuits use the amplitude of the vertical blanking pulse to operate the AGC. Video copy control schemes such as Macrovision exploit this, inserting spikes in the pulse which will be ignored by most television ...

跪求一篇英文版的读后感书籍类的读后感 10001500字哇

Tonight I watched the movie for the third time. I really enjoy this film so much.

So what's your choice between being a common person or a hero with people's respects? Most people will choose the latter. But what will be your choice if the cost is laying your lover among the risks? What will it be if the cost is you can never tell the girl, who you love so much, that you love her? The spider man had this contradiction. But finally he still chose the latter, not in order to be a hero, but to make this word peaceful.

I was so moved by the words the Aunt Mary said:

You will never guess what he wants to be, the spider man. He knows the hero when he sees one, too a few characters out there, flying all around out there, saving old girls like me. Lord knows kids like Henry need hero courageous, sacrificing for people, setting examples for all of us. Everybody loves a hero. People enthrone them, cheer them, scream their names and years later they will tell how they stood in the rain for hours just to get a glimpse the one who taught them to hold on to stand longer. I believe there is a hero in all of us. They keep us be honest, give us strength, make us noble, and finally allow us to die with proud. Ever though sometimes we have to initiatively give up the thing we want most, even our dreams. Spider man did that for Henry, so he wants to know where he is gone. He needs him.

The spider man got much from these words, so did I. And what about you? what's the hero lying in you?