题目

蝎毒 “染色剂 ” 氯代毒素 Chlorotoxin 是由蝎子毒液中的一种蛋白质制成的，它可以选择性地绑定在癌细胞上，使癌症手术更加容易，有效。下列说法错误的是（    ） A．蝎毒 “ 染色剂 ” 可用双缩脲试剂鉴定 B．这种染色剂的合成、加工和分泌需要的膜性细胞器有内质网，高尔基体和线粒体 C．可用 32 P标记这种蛋白质，以便于手术过程中癌细胞追踪 D．氯代毒素能选择性地绑在癌细胞上，可能与癌细胞膜表面的糖蛋白有关Unit 6一、选出你所听到的单词，并将其序号填入题前括号内，听一遍。1. They want to find out about this country before the lessons.2. The children will learn about Australia next week.3. She can send me some photos.4. I'll read about Australia on the Internet.5. You will find many interesting things in Australia.6. Sport lovers like Australian Football games very much.7. Come and visit America today!8. The weather is sometimes rainy in the UK.一、根据所听内容，判断正误，正确的打“V”，错误的打“X”，听两遍。The children will learn about Australia at school. Mike has an e-friend in Australia. He wants to find some photos. Su Hai knows a woman in Australia. Yang Ling will surf the Internet to learn about Australia.一、根据所听内容，完成句子，听三遍。1. Sport lovers will like Australian Football games because they are very interesting.2. They’ll find out about this country next week.3. He is cooking fish and making a potato salad.4. My parents and I will visit him next month.―、选出所听句子中所含的单词，听一遍。1. Please write down your weekend plan.2. I want an envelope.3. There is going to be a football match next Sunday.4. What did you do last Saturday?5. Are you free now?6. Sam is excited about the animal show.7. I will go shopping with my mum at a quarter to seven.8. — When is your birthday? — It’s on the first of July.9. When will you finish your primary school?10. There are some interesting cities,for example,London and Oxford.二、 根据所听内容，选择相应的答句，并将其序号填在括号内，听两遍。1. Would you like to come to Sydney?2. What's Su Hai's hobby?3. Will you go to the library tomorrow?4. Where will she go?5. When shall we meet?三、 根据所听内容，完成下列句子，听两遍。A： Vm going to Australia next summer.B： I like swimming there.A： Why?B: Because it's sunny and warm. How about you?A： I like autumn. I can catch insects with my friends.B: It's very interesting.