题目

如图是高致病性禽流感病毒（H5N1）在人体细胞中的一些变化以及相关反应，下列有关叙述错误的是（ ） A．a、b分别指的是子代H5N1和抗体 B．c的作用是进入靶细胞内，释放淋巴因子使靶细胞裂解 C．据图可知，H5N1在宿主细胞内进行遗传信息表达的过程中不涉及逆转录酶 D．合成H5N1蛋白质的场所以及所需要的原料都是人体细胞提供的阅读理解。     We have all experienced days when everything goes wrong. A day may begin well enough, but suddenlyeverything seems to get out of control. Sometimes a single unimportant event may cause a number of things to happen. Let us suppose that you are preparing a meal and keeping an eye on the baby at the same time. The telephone rings and this causes your troubles to begin. While you are on the phone, the baby pulls the tablecloth off the table, destroying your half-prepared meal. You hang up hurriedly and attend to your baby. Meanwhile, the meal gets burnt. As if this is not enough to bring you to tears, your husband arrives home, unexpectedly bringing three guests to dinner.      Things can also go wrong on the road. During rush hour one evening two cars hit each other and the drivers began to argue. The woman driver behind the two cars happened to be a learner. She got into a panic and stopped her car. This forced the driver following her to stop suddenly. This driver's wife was sitting beside him holding a large cake, and as she was thrown forward, the cake went right through the window and landed on the road. A truck driver seeing a cake flying through the air slammed on the brakes (猛地刹车). The truck was carrying empty beer bottles and hundreds of them slid off the back of the truck onto the road, causing a terrible traffic jam. It took the police an hour to get the traffic on the move again. In the meantime, the truck driver had to sweep up hundreds of broken bottles. Only two dogs were enjoying themselves, for they were happily having what was left of the cake. 1. If you want to answer the phone without any trouble, you'd better _____.A. pull out the telephone line when you are with your baby B. put your baby on the bed and keep an eye on him/her C. not hurry to answer the phone D. make sure your baby is not near the table 2. Who is responsible for the accidents that happened on the road? A. The two drivers who were arguing. B. It wasn't mentioned in the passage.C. The woman driver. D. The truck driver. 3. From this story we learn that _____. A. there are many road accidents every day B. the accidents mentioned in the passage are very strangeC. no one knows why this kind of accident happens D. the accidents mentioned in the passage are very common 4. The writer's purpose in writing this passage is to _____. A. remind us not to answer the phone when we are busy B. tell us driving is dangerous every day C. remind us not to be nervous when we meet an accidentD. remind us not to carry a cake when we are sitting in a car 5. The main idea of this passage is that _____. A. troubles always come in groupsB. accidents may happen anywhere at anytimeC. a telephone call may cause great trouble D. anyone may have trouble on their way home