【正文】 equency of a sound is the number of waves that pass a given point each second. The more rapidly an object vibrates, the greater the frequency of sound it makes. Frequency is measured in hertz. One hertz equals one sound wave per second. The frequency of sound determines the degree of highness or lowness of the sound. A highpitched sound has a higher frequency than a lowpitched sound. Humans hear sounds that have frequencies from about 20 hertz to 20,000 hertz. Seeing with Sound Sound with a frequency higher than 20,000 hertz is called ultrasound. In other words, ultrasound is too highpitched for humans to hear. However, any animals can hear ultrasound. Bats can hear higher sounds than any other animal. Some can hear up to 210,000 hertz. Bats send out lots of highpitched squeaks(吱吱叫聲 ) and then listen to the echoes bouncing(彈跳 ) off things like insects. The shorter the time interval between the squeak and the echo, the closer they are to the insect. Using sound to find or see things is called echolocation. Dolphin Sounds Another animal that uses ultrasound is the dolphin. Dolphins can hear sounds up to about 150,000 hertz. Dolphins use sound waves to find food underwater. They make clicking sounds that hit whatever is around them and then bounce back to the dolphins. Dolphins can send as many as 2,000 clicks per second. Dolphins39。s ultrasonic whistle because he used ultrasound. E There is a popular belief among parents that schools are no longer interested in spelling. No school I have ever taught in has ever ignored spelling or considered it unimportant as a basic skill. There are, however, different ideas about how to teach it, or how much priority(優(yōu)先 ) it must be given over general language development and writing ability. The problem is, how to encourage a child to express himself freely and confidently in writing without holding him back with the plexities(復(fù)雜性 ) of spelling. If spelling bees the only focal(焦點(diǎn)的 ) point of his teacher39。s why teachers often encourage the early use of dictionaries and pay attention to content rather than technical ability. I was once shocked to read on the bottom of a sensitive piece of writing about a personal experience. This work is terrible! There are far too many spelling errors and your writing is terrible. It may have been a sharp criticism of the pupil39。s deep feelings. The teacher was not wrong to draw attention to the errors, but if his priorities had centered on the child39。s judgment on that sensitive piece of writing is _________. A. unfair B. reasonable C. foolish D. careless 75. The major point discussed in the passage is ________. A. the importance of developing writing skills B. the plexities of spelling C. the correct way of marking positions D. the relationship between spelling and the content of a position IV 短文改錯 此題要求改正所給短文中的錯誤。 該行缺一個詞：在缺詞處加一個漏詞符號 (∧) ，在該行右邊橫線上寫出該加的詞。 注意：原行沒有錯的不要改。m not sure what to write about it. I39。t understand everything 82. ______________ people are saying, but each day I get better or better. 83. ______________ I told my teacher this was difficult position to write. 84. ______________ Above all, it is hard to measure everything you have done 85. ______________ in your life. V 書面 表達(dá) 假定你是李華。請根據(jù)下表提供的信息用英語寫一篇短文，并談一些你自己的看法，給某英語雜志投稿。 1．高三階段課業(yè)繁重，很多同學(xué)經(jīng)常感到疲勞。 2．補(bǔ)品可以幫助恢復(fù)精力。 3．沒時間鍛煉身體。短文開頭已為你寫好，不計人詞數(shù)。 I39。ve had in the recent class meeting about whether Senior 3 students should take a lot of tonics to keep fit. 參考答案 單項填空 21— 25 BBBCB 26— 30 ACCAD 31— 35 DAADB 完形填空 36— 40 ABCBA 41— 45 BDCAD 46— 50 CCBBA 51— 55 BADDB 閱讀理解 56— 60 CBCAA 61— 65 BDCDA 66— 70 CDDAB 71— 75 BDAAD 短文改錯 76． write前加 to 77． title→titled 78 ．去掉 it 79． √ 80 ． get→getting 81． achievement→achievements 82 ． Sometime→Sometimes 83 ． or→and 84． was后加 a 85． Above→After 書面表達(dá) One possible version: I39。ve had in the recent class meeting about whether Senior 3 students should take a lot of tonics to keep fit. Opinions are divided on the topic. Sixty percent of the students think it unnecessary to take any tonics. They hold the opinion that taking tonics will cause them to put on weight, which is bad for their health. What39。t afford time to have sports. Personally, having right food is more important. The best way to stay healthy is to take exercise regularly.