题目

变形虫的（ ）将细胞与外部环境分开，既有保护作用又能进行物质交换。 A . 细胞壁 B . 细胞膜 C . 细胞核 D . 液泡 答案：BIf you’re one of those people who like to use apps(应用程序) to kill time, you’re not alone. In fact,using apps has now become part of everyday life. Here are four apps for you to spend your free time. Have fun with these cool apps below!BaicizhanFirst of all, the app tells you how many English words you need to learn every day. That’s not all. It can also be very fun. The learning process is like playing a guessing game. Instead of just showing the Chinese and English meanings of a new word, the app asks you to first choose the correct picture from four, according to an English description. And then, you can practice remembering the new word in other ways.Douban FMA digital (数字的) radio app like Douban FM might be the right music app for you. Without a play list, you will never know what the next song is. Songs just keep playing one by one. You can use the “heart”, “trash” and “skip” buttons (按钮) to mark the songs you like, don’t like, and want to cut short. Those marked with a heart will be kept in another list as your favorites for you to enjoy again at any time you want.Moment CameraApp stores have too many camera apps with filters(滤镜). They are all designed to make your smart phone camera better. But which one gives you the best influence Moment Camera. Many people like this app because of its sequence shots (连拍) and different-sized frames (边框) for photos. But the best thing about the app is not what it does, but what it leaves out. It is simple, clean, and easy to use.FlipboardIt is one of the hottest news apps right now. But the difference with Flipboard is that you can make everything personal to you. Open up the app, choose whatever interests you, and click the “+” button. In the end you’ll have your own magazine with news, articles, and information. So unlike the boring magazines you read in the past, you can be sure that every page of this one will interest you.【1】If you have problems in remembering English words, which app can help youA. Baicizhan. B. Douban FM. C. Moment Camera. D. Flipboard.【2】When you use the Flipboard, you can ________.A. listen to music B. know about the news C. take pictures D. play guessing games【3】If you use the heart button, it means ________.A. you don’t like the songs at allB. you want to cut short the songsC. you want to cancel the songsD. you want to enjoy the songs again【4】Which is Not the advantage of Moment CameraA. It provides users with sequence shots.B. It is a kind of camera app with filters.C. It’s difficult for users to use Moment Camera.D. It offers you different-sized frames for photos.【5】What can we know from the passageA. Douban FM is a digital radio app for you to learn about sports news.B. Flipboard gives you a chance to choose the news that interests you.C. Baicizhan just shows the Chinese and English meanings of a new word.D. Moment Camera is the only app to make your smart phone camera better.