【文章內(nèi)容簡(jiǎn)介】 ths each year and a large number of these fires are unfortunately set by ，不幸的是，應(yīng)說所以，重要的是教會(huì)他們火是一種工具，.2. E 根據(jù)后句The main job of such an alarm is to protect you while you39。re ，.3. B 根據(jù)前句A smoke alarm warns you of the action ，應(yīng)說但是當(dāng)你聽到它的時(shí)候。4. C 根據(jù)后句Change the batteries at least once a should use the test button each month to see if the alarm a nd batteries are still ，每月使用測(cè)試按鈕查看報(bào)警器和電池是否仍在工作，可知結(jié)合選項(xiàng)。5. A 根據(jù)前句About two out of three fire deaths happen in homes with no working smoke ，應(yīng)說這些死亡大多數(shù)是可以避免的，故選A。四Do you have a tail？Of course not，we know. But tail s are like opinions, actually，everyone has them: fishes，birds，most reptiles，and even some of our closest relatives Since tails tirst evolved（進(jìn)化）at least 500 million years ago. Geckos（壁虎）use them to store fat. birds use them to steer through the air，But for most mammals（哺乳動(dòng)物）. 1 Yet，as you get closer to humans on the evolutionary tree，tails disappear，Gorillas（大猩猩）don39。t have them，and neither do chimps（黑猩猩）or any other apes（類人猿）including u s，of course，To understand why，take a look at how we walk. 2 walking like this gives us a huge advantage because unlike fourlegged animals. which have to pour energy into every step they take，two legs take advantage of gravity（重力），which does some of the work for us. You see，each time we take a step，gravity pulls us forward. The end result is that when we walk，we use around 25%less energy than walking on all fours，and this way of getting around also totally climinates（淘汰）the need for a tail.It39。s said that you can still see a reminder of a time when our ancient ancestors had one. Just loo k at a human spine（脊椎）. 3 That39。s your tailbone. It39。s all that39。s the rest of our tail.Now，babies are born with what looks like a tail，but that39。s not what39。s really going on. Most often，these tails are actually a parasitic twin（寄生蟲）.These types of tails usually form as a birth fect（瑕疵）. 4 So the tail of humans has gone，it39。s the result of evolution millions of years Will humans be much taller，stronger or smarter in the future？A. Nowadays，humans can walk pletely upright.B. And in these situations，doctors will advise to remove the tails with no harm to the babies C. they serve one major purposebalance.D. You can see how the last few bones are partly fused（融合）together文章大意短文講了一些動(dòng)物尾巴的作用，及其人類尾巴的進(jìn)化和發(fā)展。答案解析1. C 根據(jù)前句But for most mammals（哺乳動(dòng)物）.，2. A 根據(jù)后句walking like this gives us a huge advantage because unlike fourlegged ，應(yīng)說如今，人類可以完全直立行走。故選A.3. D 根據(jù)前句Just look at a human spine（脊椎），看看人類的脊椎，可知結(jié)合選項(xiàng)，.4. B 根據(jù)前句These types of tails usually form as a birth fect（瑕疵）.這些類型的尾巴通常形成一個(gè)瑕疵?？芍Y(jié)合選項(xiàng)，應(yīng)說在這種情況下，.（限時(shí)：30分鐘）一Confidence（自信）is very important in daily life. It can help you develop a health attitude. 1 They may have more chances to bee successful. But how can we be more confident？Here are some suggestions.Speak louder When you are not confident，it39。s hard for you to do things well. You speak in such a low voice that people can hardly hear you. 2 Your voice can help you bee more confident. 3 Write down a list of things you did during the day to see how many things you did we. Did you finish your task？Did you tell a joke that made everybody laugh？Give yourself praise for the good things you39。ve done.Get rid of fear 4 But it39。s easy to overe if you understand that failure is a part of life. Don39。t hide in y our head just because you said something stupid once. Try to start again and believe you can do better Pick up a hobby If you like singing，sing as much as you can. 5 And it will make you happy and confident.根據(jù)短文內(nèi)容，從下列選項(xiàng)中選出能填入空白處的最佳選項(xiàng)，選項(xiàng)中有兩項(xiàng)為多余選項(xiàng).（每小題5分，共5分）請(qǐng)?jiān)诖痤}卡上用2B鉛筆將你的選項(xiàng)所對(duì)應(yīng)的大寫字母涂黑.A. In some ways，a hobby can make you outstanding（杰出）.B. You should speak often to get more speaking chances.C. A study shows that people who are more confident are much happier.D. Fear goes along with failure.E. Encourage yourself F. Try to speak loud enough so that people can hear you clearly.G. A hobby can sometimes bee a bad thing.文章大意，自信的人更快樂，：大聲說話；多做運(yùn)動(dòng)；鼓勵(lì)自己；消除恐懼；學(xué)會(huì)一種愛好。答案解析1. C 根據(jù)前句Confidence（自信）is very important in daily life. It can help you develop a healthy ，應(yīng)說一項(xiàng)研究表明，.2. F 根據(jù)前句When you are not confident，it39。s hard for you to do things well. You speak in such a low voice that people can hardly hear ，很難把事情做好。你說話的聲音很低，應(yīng)說說話聲音要大些，.3. E 根據(jù)后句Write down a list of things you did during the day to see how many things you did we. Did you finish your t ask？Did you tell a joke that made everybody laugh？Give yourself praise for the good things you39。ve ，？你講的笑話讓大家都笑